Connect public, paid and private patent data with Google Patents Public Datasets

Thin module system and method

Download PDF

Info

Publication number
US20060050492A1
US20060050492A1 US10934027 US93402704A US2006050492A1 US 20060050492 A1 US20060050492 A1 US 20060050492A1 US 10934027 US10934027 US 10934027 US 93402704 A US93402704 A US 93402704A US 2006050492 A1 US2006050492 A1 US 2006050492A1
Authority
US
Grant status
Application
Patent type
Prior art keywords
circuit
flex
substrate
side
contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10934027
Inventor
Paul Goodwin
James Cady
Douglas Wehrly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Entorian Technologies Inc
Original Assignee
Entorian Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L25/00Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L51/00, e.g. assemblies of rectifier diodes
    • H01L25/04Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L51/00, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/065Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L51/00, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L27/00
    • H01L25/0652Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L51/00, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L27/00 the devices being arranged next and on each other, i.e. mixed assemblies
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C5/00Details of stores covered by G11C11/00
    • G11C5/02Disposition of storage elements, e.g. in the form of a matrix array
    • G11C5/04Supports for storage elements, Supports for storage elements, e.g. memory modules; Mounting or fixing of storage elements on such supports
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C5/00Details of stores covered by G11C11/00
    • G11C5/14Power supply arrangements, e.g. Power down/chip (de)selection, layout of wiring/power grids, multiple supply levels
    • G11C5/143Detection of memory cassette insertion/removal; Continuity checks of supply and ground lines ; Detection of supply variations/interruptions/levels ; Switching between alternative supplies
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/18Printed circuits structurally associated with non-printed electric components
    • H05K1/189Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L25/00Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L51/00, e.g. assemblies of rectifier diodes
    • H01L25/10Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L51/00, e.g. assemblies of rectifier diodes the devices having separate containers
    • H01L25/105Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L51/00, e.g. assemblies of rectifier diodes the devices having separate containers the devices being of a type provided for in group H01L27/00
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/0201Thermal arrangements, e.g. for cooling, heating or preventing overheating
    • H05K1/0203Cooling of mounted components
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/11Printed elements for providing electric connections to or between printed circuits
    • H05K1/118Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/18Printed circuits structurally associated with non-printed electric components
    • H05K1/181Printed circuits structurally associated with non-printed electric components associated with surface mounted components
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/05Flexible printed circuits [FPCs]
    • H05K2201/056Folded around rigid support or component
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431Details of mounted components
    • H05K2201/1056Metal over component, i.e. metal plate over component mounted on or embedded in PCB
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10613Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10621Components characterised by their electrical contacts
    • H05K2201/10734Ball grid array [BGA]; Bump grid array
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/20Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
    • H05K2201/2018Presence of a frame in a printed circuit or printed circuit assembly
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/15Position of the PCB during processing
    • H05K2203/1572Processing both sides of a PCB by the same process; Providing a similar arrangement of components on both sides; Making interlayer connections from two sides
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/0058Laminating printed circuit boards onto other substrates, e.g. metallic substrates
    • H05K3/0061Laminating printed circuit boards onto other substrates, e.g. metallic substrates onto a metallic substrate, e.g. a heat sink

Abstract

A flexible circuit has contacts for mounting in a socket or card edge connector. The flexible circuit includes integrated circuit devices mounted on both sides of the edge connector contacts. Preferably, the flexible circuit is wrapped about an edge of a rigid substrate and presents contacts on both sides of the substrate for mounting in a socket. Multiple flexible circuits may be overlaid with the same strategy. The flexible circuit may exhibit one or two or more conductive layers, and may have changes in the layered structure or have split layers.

Description

    FIELD
  • [0001]
    The present invention relates to systems and methods for creating high density circuit modules.
  • BACKGROUND
  • [0002]
    A variety of techniques are used to make high density circuit modules. Some techniques require special circuit board designs, while other techniques use conventional circuit boards.
  • [0003]
    Memory expansion is one of the many fields in which high density circuit board solutions provide space-saving advantages. For example, the well-known DIMM (Dual In-line Memory Module) board has been used for years, in various forms, to provide memory expansion. A typical DIMM includes a conventional PCB (Printed Circuit Board) with memory devices and supporting digital logic devices mounted on both sides. The DIMM is typically mounted in the host computer system by inserting a contact-bearing edge of the DIMM into a card edge connector. Typically, systems that employ DIMMs provide limited space for such devices and most memory expansion boards are somewhat limited in the memory capacity they add to a system.
  • [0004]
    There are several known methods to improve the limited capacity of a DIMM or other circuit board. Such methods have various cost or performance impacts. Further, many capacity increasing techniques exacerbate profile issues and contribute to thermal management complexities.
  • [0005]
    In one scheme, small circuit boards (daughter cards) are connected to the DIMM to provide extra mounting space. The additional connection may cause, however, flawed signal integrity for the data signals passing from the DIMM to the daughter card. For example, signal traces between devices on the DIMM and devices on the daughter card may at higher speeds add to signal dispersion while added connectors are a considerable reliability issue. Other problems may arise from the connector that attaches the daughter card to the DIMM. Such flaws may cause reflections and compromise the quality of signaling waveforms and reduce the maximum speed at which the devices may operate.
  • [0006]
    Another scheme to increase circuit board capacity is multiple die packages (MDP). This scheme increases the capacity of the memory devices on the DIMM by including multiple semiconductor die in a single device package. The additional heat generated by the multiple die typically requires, however, additional cooling capabilities to operate at maximum operating speed. Further, the MDP scheme may exhibit increased costs because of increased yield loss from packaging together multiple die that are not fully pre-tested.
  • [0007]
    Yet another strategy to increase circuit board capacity is stacked packages. This scheme increases capacity by stacking packaged integrated circuits to create a high-density circuit module for mounting on the circuit board. In some techniques, flexible conductors are used to selectively interconnect packaged integrated circuits. Staktek Group L.P. has developed numerous systems for aggregating CSP (chipscale packaged) devices in space saving topologies. The increased component height of some stacking techniques may alter, however, system requirements such as, for example, required cooling airflow or the minimum spacing around a circuit board on its host system.
  • [0008]
    Typically, the known methods raise thermal management issues. For example, when a conventional FBGA packaged DRAM is mounted on a DIMM, the primary thermal path is through the balls into the core of a multilayer DIMM. When, for example, a stack of devices is employed on a DIMM, the top device gets hotter when it is active versus when the lower device is active, thus stacking methods in DIMM applications may present thermal constraints.
  • [0009]
    What is needed therefore are methods and structures for providing high capacity circuit boards in thermally efficient, reliable designs that perform well at higher frequencies but are not too large, yet can be made at reasonable cost with commonly available and readily managed materials.
  • SUMMARY
  • [0010]
    A flexible circuit has contacts for mounting in a socket or card edge connector. Preferred embodiments of the present invention can be used to provide an increased surface area circuit board module.
  • [0011]
    In one preferred embodiment, a flexible circuit is populated on both sides with integrated circuits and wrapped about an edge of a rigid substrate. The flexible circuit presents contacts for mounting the assembly in a socket. Multiple flex circuits may be overlaid with the same scheme. The flex circuit may aligned using tooling holes in the flex circuit and substrate. The flexible circuit may exhibit one or two or more conductive layers, and may have changes in the layered structure or have split layers.
  • [0012]
    In another preferred embodiment, the invention provides a method of assembling a circuit module including mounting ICs on both sides of a flexible circuit having contacts, providing a rigid substrate, and wrapping the flexible circuit around the substrate to present contacts near the edge of the substrate for insertion into an expansion board slot.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0013]
    FIG. 1 depicts a contact-bearing first side of a flex circuit devised in accordance with a preferred embodiment of the present invention.
  • [0014]
    FIG. 2 depicts the second side of the flex circuit of FIG. 1.
  • [0015]
    FIG. 3 depicts a cross-sectional view of a module assembly devised in accordance with a preferred embodiment of the present invention.
  • [0016]
    FIG. 4 is an enlarged view of the area marked “A” in FIG. 3.
  • [0017]
    FIG. 5 is a plan view depicting one side of a module assembly devised in accordance with a preferred embodiment of the present invention.
  • [0018]
    FIG. 6 is an enlarged view of a portion of one preferred embodiment.
  • [0019]
    FIG. 7 depicts a cutout portion of a flex circuit and substrate according to one preferred embodiment.
  • [0020]
    FIG. 8 depicts another embodiment of the present invention having a clip.
  • [0021]
    FIG. 9 depicts another embodiment having a thinned portion of substrate.
  • [0022]
    FIG. 10 is a cross-sectional view of another preferred embodiment of the present invention.
  • [0023]
    FIG. 11 depicts another preferred embodiment having an extended substrate.
  • [0024]
    FIG. 12 depicts alternate preferred embodiment having additional layers of ICs.
  • [0025]
    FIG. 13 depicts another embodiment having flex portions wrapped around opposing edges of a substrate.
  • [0026]
    FIG. 14 depicts yet another embodiment having a flex portion wrapped around opposing edges of a substrate.
  • [0027]
    FIG. 15 is a cross-sectional view of another embodiment of the present invention.
  • [0028]
    FIG. 16 depicts an alternative embodiment of the present invention.
  • [0029]
    FIG. 17 depicts an alternative embodiment of the present invention having CSPs on the external side of a flex circuit.
  • [0030]
    FIG. 18 depicts an alternative embodiment of the present invention having CSPs mounted between a flex circuit and substrate.
  • [0031]
    FIG. 19 depicts an alternative embodiment of the present invention in which the flex circuit transits over an end of the substrate opposite the edge connector contacts.
  • [0032]
    FIG. 20 is a preferred embodiment of the present invention similar to that depicted in earlier FIG. 11.
  • [0033]
    FIG. 21 depicts an alternative embodiment of the present invention in which a connector provides selective interconnective facility between parts of the flex circuit on opposite lateral sides of the substrate.
  • [0034]
    FIG. 22 depicts details from the area marked “A” in FIG. 21.
  • [0035]
    FIG. 23 is an elevation view of an embodiment of an alternative circuit module.
  • [0036]
    FIG. 24 is a cross-sectional view of the embodiment of FIG. 23.
  • [0037]
    FIG. 25 is an elevation view of another embodiment of the alternative circuit module of FIG. 23.
  • [0038]
    FIG. 26 is a cross-sectional view of the embodiment of FIG. 25.
  • [0039]
    FIG. 27 is an elevation view of yet another alternative circuit module.
  • [0040]
    FIG. 28 is a cross-sectional view of the alternative circuit module of FIG. 27.
  • DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
  • [0041]
    FIGS. 1 and 2 depict opposing sides 8 and 9 of a preferred flex circuit 12 (“flex”, “flex circuitry”, “flexible circuit”) used in constructing a preferred embodiment of the present invention. Flex circuit 12 is preferably made from conductive layers supported by one or more flexible substrate layers as further described with reference to later Figures. The construction of flex circuitry is known in the art. The entirety of the flex circuit 12 may be flexible or, as those of skill in the art will recognize, the flexible circuit structure 12 may be made flexible in certain areas to allow conformability to required shapes or bends, and rigid in other areas to provide rigid and planar mounting surfaces. Preferred flex circuit 12 has openings 17 for use in aligning flex circuit 12 to substrate 14 during assembly.
  • [0042]
    ICs 18 on flexible circuit 12 are, in this embodiment, chip-scale packaged memory devices. For purposes of this disclosure, the term chip-scale or “CSP” shall refer to integrated circuitry of any function with an array package providing connection to one or more die through contacts (often embodied as “bumps” or “balls” for example) distributed across a major surface of the package or die. CSP does not refer to leaded devices that provide connection to an integrated circuit within the package through leads emergent from at least one side of the periphery of the package such as, for example, a TSOP.
  • [0043]
    Embodiments of the present invention may be employed with leaded or CSP devices or other devices in both packaged and unpackaged forms but where the term CSP is used, the above definition for CSP should be adopted. Consequently, although CSP excludes leaded devices, references to CSP are to be broadly construed to include the large variety of array devices (and not to be limited to memory only) and whether die-sized or other size such as BGA and micro BGA as well as flip-chip. As those of skill will understand after appreciating this disclosure, some embodiments of the present invention may be devised to employ stacks of ICs each disposed where an IC 18 is indicated in the exemplar FIGS.
  • [0044]
    Multiple integrated circuit die may be included in a package depicted a single IC 18. While in this embodiment memory ICs are used to provide a memory expansion board, this is not limiting and various embodiments may include a variety of integrated circuits and other components. Such variety may include microprocessors, FPGA's, RF transceiver circuitry, digital logic, as a list of non-limiting examples, or other circuits or systems which may benefit from a high-density circuit board capability. Circuit 19 depicted between a pair of ICs 18 may be a memory buffer or controller.
  • [0045]
    FIG. 1 depicts a top or outer side 8 of flex circuit 12 having ICs 18 mounted in two rows ICR1 and ICR2. Contact arrays are disposed beneath ICs 18 and circuit 19 to provide conductive pads for interconnection to the ICs. An exemplar contact array 11A is shown as is exemplar IC 18 to be mounted at contact array 11A as depicted. The contact arrays 11A that correspond to an IC row (e.g., ICR1) may be considered a contact array set. Between the rows ICR1 and ICR2 of ICs 18, flex circuit 12 has two rows (CR1 and CR2) of module contacts 20. When flex circuit 12 is folded as depicted in later FIGS. 3 and 4, side 8 depicted in FIG. 1 is presented at the outside of module 10. The opposing side 9 of flex circuit 12 (FIG. 2) is on the inside in the folded configurations of FIGS. 3 and 4. The depiction of FIG. 1 shows two pluralities of ICs 18 along side 8 of flex circuit 12, the pluralities or sets of ICs being referenced in FIG. 1 as ICR1 and ICR2. Other embodiments may have other numbers of rows and there may be only one such row. FIG. 2 depicts another two pluralities of ICs 18 along side 9 of flex circuit 12 referenced as ICR3 and ICR4. Various discrete components such as termination resistors, bypass capacitors, and bias resistors may also be mounted on each of sides 8 and 9 of flex 12. Such discrete components are not shown to simplify the drawing. Flex circuit 12 may also depicted with reference to its perimeter edges, two of which are typically long (PElong1 and PElong2) and two of which are typically shorter (PEshort1 and PEshort2). Other embodiments may employ flex circuits 12 that are not rectangular in shape and may be square in which case the perimeter edges would be of equal size or other convenient shape to adapt to manufacturing particulars. However, rectangular shapes for flex circuit 12 assist in providing a low profile for a preferred module devised with use of flex circuit 12.
  • [0046]
    FIG. 1 depicts exemplar conductive traces 21 connecting rows CR1 and CR2 of module contacts 20 to ICs 18. Only a few exemplar traces are shown to simplify the drawing. Traces 21 may also connect to vias that may transit to other conductive layers of flex 12 in certain embodiments having more than one conductive layer. Shown is a via 23 connecting a signal trace 23 from circuit 19 to a trace 25 disposed on another conductive layer of flex 12 as illustrated by the dotted line of trace 25. In a preferred embodiment, vias connect ICs 18 on side 9 of flex 12 (FIG. 2) to module contacts 20. Traces 21 and 25 may make other connections between the ICs on either side of flex 12 and may traverse the rows of module contacts 20 to interconnect ICs. Together the various traces and vias make interconnections needed to convey data and control signals to the various ICs. Those of skill will understand that the present invention may be implemented with only a single row of module contacts 20 and may, in other embodiments be implemented as a module bearing ICs on only one side.
  • [0047]
    FIG. 3 is a cross section view of a module assembly 10 devised in accordance with a preferred embodiment of the present invention. Module assembly 10 is populated with ICs 18 having top surfaces 18 T and bottom surfaces 18 B. Substrate 14 has a first and a second perimeter edges 16A and 16B appearing in the depiction of FIG. 3 as ends. Substrate 14 typically has first and second lateral sides S1 and S2. Flex 12 is wrapped about perimeter edge 16A of substrate 14, which in the depicted embodiment, provides the basic shape of a common DIMM board form factor such as that defined by JEDEC standard MO-256. Preferably, at least a portion 24 of the pocket of flex 12 formed by the wrapping about the substrate is laminated or otherwise connected to substrate 14 on both sides of substrate 14. Portion 24 may vary in length depending on factors such as, for example, the height of ICs 18, the thickness of substrate 14, the length of module contacts 20, and the size and design of the card edge connector or socket into which module assembly 10 is adapted to be mounted. Above portion 24 is depicted flex level transition 26 of flex circuit 12. The space between flex level transition 26 and substrate 14 may be filled with a conformal or heat conductive underfill, or may be left unfilled. Flex level transition 26 is a bend formed in a manner devised to allow flex circuit 12 to provide conductive connection from a plane at the level of flex circuit portion 24 to a plane at the level of flex circuit portion 28. The offset between the two planes is, in this embodiment, the height of a single IC 18 added to that of adhesive 30 (FIG. 6). Adhesive 30 in a preferred embodiment is a thermally conductive material to take advantage of the heat dissipation characteristics that may be provided by use of an appropriately selected substrate 14 comprised, for example, of a metal such as aluminum.
  • [0048]
    The inner pair of the four depicted ICs 18 are preferably attached to substrate 14 with a heat conductive adhesive 30. While in this embodiment, the four depicted ICs are attached to flex circuit 12 in opposing pairs, this is not limiting and more ICs may be connected in other arrangements such as, for example, staggered or offset arrangements. Further, while only CSP packaged ICs are shown, other ICs and components may be attached. In a preferred embodiment, ICs 18 will be memory CSPs and various discrete components such as, for example, resistors and capacitors will also be mounted on flex circuit portion 28. To simplify the drawing, the discrete components are not shown. Further, ICs and other components may be mounted to flex circuit portion 24.
  • [0049]
    In this embodiment, flex circuit 12 has module contacts 20 positioned in a manner devised to fit in a circuit board card edge connector or socket and connect to corresponding contacts in the connector (not shown). While module contacts 20 are shown protruding from the surface of flex circuit 12, this is not limiting and other embodiments may have flush contacts or contacts below the surface level of flex 12. Substrate 14 supports module contacts 20 from behind flex circuit 12 in a manner devised to provide the mechanical form required for insertion into a socket. While the depicted substrate 14 has uniform thickness, this is not limiting and in other embodiments the thickness or surface of substrate 14 in the vicinity of perimeter edge 16A may differ from that in the vicinity of perimeter edge 16B. Non-limiting examples of such possible variations are found in FIGS. 9 and 10. Substrate 14 in the depicted embodiment is preferably made of a metal such as aluminum or copper, as non-limiting examples, or where thermal management is less of an issue, materials such as FR4 (flame retardant type 4) epoxy laminate, PTFE (poly-tetra-fluoro-ethylene) or plastic. In another embodiment, advantageous features from multiple technologies may be combined with use of FR4 having a layer of copper on both sides to provide a substrate 14 devised from familiar materials which may provide heat conduction or a ground plane.
  • [0050]
    One advantageous methodology for efficiently assembling a circuit module 10 such as described and depicted herein is as follows. In a preferred method of assembling a preferred module assembly 10, flex circuit 12 is placed flat and both sides populated according to circuit board assembly techniques known in the art. Flex circuit 12 is then folded about end 16A of substrate 14. Next, tooling holes 17 may be used to align flex 12 to substrate 14. Flex 12 may be laminated or otherwise attached to substrate 14 at portions 24. Further, top surfaces 18 T of ICs 18 may be attached to substrate 14 in a manner devised to provide mechanical integrity or thermal conduction.
  • [0051]
    FIG. 4 is an enlarged view of the area marked ‘A’ in FIG. 3. Edge 16A of substrate 14 is shaped like a male side edge of an edge card connector. While a particular oval-like configuration is shown, edge 16A may take on other shapes devised to mate with various connectors or sockets. The form and function of various edge card connectors are well know in the art. Flex 12 is wrapped around edge 16A of substrate 14 and may be laminated or adhesively connected to substrate 14 with adhesive 30. The depicted adhesive 30 and flex 12 may vary in thickness and are not drawn to scale to simplify the drawing. The depicted substrate 14 has a thickness such that when assembled with the flex 12 and adhesive 30 the thickness measured between module contacts 20 falls in the range specified for the mating connector. In some other embodiments, flex circuit 12 may be wrapped about perimeter edge 16B or both perimeter edges 16A and 16B of substrate 14.
  • [0052]
    FIG. 5 depicts a plan view of module assembly 10 devised in accordance with a preferred embodiment of the present invention. Those of skill will recognize that module assembly 10 may replace more traditional DIMMs employed in a large variety of systems. Module assembly 10 has flex circuit 12 wrapped about an edge 16 of substrate 14. ICs 18 are mounted to flex circuit 12 along the depicted side as described with reference to earlier Figs. Module contacts 20 are presented near edge 22 of module assembly 10 for connection to a card edge connector or socket.
  • [0053]
    FIG. 6 is an enlarged view of a portion of one preferred embodiment showing lower IC 18 1 and upper IC 18 2. Flex 12 has flex level transition 26 bending from flex circuit portion 24 to flex circuit portion 28. Flex level transition 26 has, in this embodiment, a flexible base layer 62 and a conductive layer 66. In this embodiment, conductive layer 66 contains conductive traces connecting module contacts 20 on flex portion 24 to BGA contacts 63 on ICs 18 1 and 18 2. Flex portion 24 has two layers, but this is not limiting and other embodiments may have other numbers of layers. The number of layers may be devised in a manner to achieve the bend radius required to bend around edge 16A (FIG. 4) or 16B, for example. The number of layers in any particular portion of flex circuit 12 may also be devised to achieve the necessary connection density given a particular minimum trace width associated with the flex circuit technology used.
  • [0054]
    In this embodiment, there are three layers at flex portion 28 between the two depicted ICs 18 1 and 18 2. Conductive layers 64 and 66 express conductive traces that connect to the ICs and may further connect to other discrete components (not shown). Preferably, the conductive layers are metal such as, for example, copper or alloy 110. Vias such as the exemplar vias 23 connect the two conductive layers 64 and 66 and enable connection between conductive layer 64 and module contacts 20. In this preferred embodiment having a three-layer flex portion 28, the two conductive layers 64 and 66 may be devised in a manner so that one of them has substantial area employed as a ground plane. The other layer may employ substantial area as a voltage reference plane. The use of plural conductive layers provides advantages and the creation of a distributed capacitance intended to reduce noise or bounce effects that can, particularly at higher frequencies, degrade signal integrity, as those of skill in the art will recognize. If more than two conductive layers are employed, additional conductive layers may be added with insulating layers separating conductive layers. Flex circuit portions 28 and 24 may in some embodiments be rigid portions (rigid-flex). Construction of rigid-flex circuitry is known in the art.
  • [0055]
    With the construction of an embodiment such as that shown in FIG. 6, thermal energy will be urged to move from IC 18 1 into substrate 14 as exemplified by thermal vector T1 and from IC 18 1 into IC 18 2 when IC 18 1 is active. Thus, IC 18 2 assists in cooling IC 18 1, consequently providing improved thermal dissipation as the heat traveling from IC 18 1 travels more readily through flex circuit 12 and the contacts 63 than through less thermally conductive materials such as PCB materials. Further, flex circuit 12 may be particularly devised to operate as a heat spreader or sink adding to the thermal conduction out of ICs 18 1 and 18 2.
  • [0056]
    FIG. 7 depicts a cutout portion of a flex circuit 12 and substrate 14 according to one preferred embodiment. Flex 12 has openings 17 for use in aligning flex 12 to substrate 14 during assembly. Such alignment may be accomplished by inserting a tooling piece along the path depicted by dotted line 76 through opening 17 on flex 12 and through corresponding opening 17 on substrate 14. Multiple openings 17 which may function as tooling holes may appear in various places. Further, the alignment between flex circuit 12 and substrate 14 may also be implemented, for example, with an opening and protrusion combination such as a slot and tab arrangement or a hole and pin arrangement, for example. Those of skill will be able to readily adapt the teachings of this disclosure to devise corresponding opening and protrusion arrangements for alignment of flex and substrate in accordance with the present invention.
  • [0057]
    Depicted are indents 72 which may be required by certain card edge connectors. Similar indents will typically appear along edge 16 (FIG. 5) of substrate 14 and may require corresponding holes or indents in flex circuit 12 to match mechanical features on certain card edge connectors.
  • [0058]
    FIG. 8 depicts another embodiment having a clip. In this embodiment, clip 82 is depicted clipped around ICs 18. Clip 82 is preferably made of metal or other heat conducting material. Preferably, clip 82 has trough 84 devised to mate with the end of substrate 14. The attachment may further be accomplished with adhesive between clip 82 and substrate 14 or ICs 18.
  • [0059]
    FIG. 9 depicts another embodiment having a thinned portion of substrate 14. In this embodiment, substrate 14 has a first thickness 1 toward edge 16A devised to provide support for an edge and surrounding area of module assembly 10 as may be needed for connection to a card edge connector. Above the portion of substrate 14 with thickness 1 is a portion 92 having thickness 2. The narrower width of portion 92 is devised to narrow the total width of module assembly 10 and may provide for enhanced cooling airflow or more dense spacing of module assemblies 10 in their operating environment.
  • [0060]
    FIG. 10 is a cross-sectional view of another preferred embodiment. The depiction is facing down. Substrate 14 is selectively thinned at portion 102 under device 104. Depicted device 104 has an exposed die 106 mounted on a substrate. Other embodiments may have otherwise packaged or mounted integrated circuits or other devices with heights greater than the typical IC 18. ICs 18 are in preferred embodiments memory CSPs all having similar heights. In this embodiment, device 104 is taller than the other ICs 18 populating the flex 12. Thinned portion 102 of substrate 14 underneath device 104 accommodates the extra height so that flex 12 remains planer and the upper surface of device 104 contacts substrate 14. Substrate 14 may be manufactured for this or other similar embodiments with a variety of method such as, for example, by being milled with a CNC (computer numerical controlled) machine, or being extruded, for example. This and similar embodiments may be employed to advantage to provide advantageous heat performance when device 104 is a FB-DIMM advanced memory buffer (AMB). Device 104 is preferably attached to substrate 14 with heat conductive adhesive.
  • [0061]
    FIG. 11 depicts another embodiment having an extended substrate 14. Depicted extension 112 of substrate 14 extends beyond the top of flex 12. Extension 112 is shaped to provide additional surface area for convective cooling. Such shape may be achieved by methods such as, for example, milling or extrusion, which are both known in the art. Preferably, extruded aluminum is used for substrate 14 in this and similar embodiments.
  • [0062]
    FIG. 12 depicts another embodiment of the invention having additional layers of ICs 18. In this embodiment, four flex level transitions 26 connect to four mounting portions 28. Each mounting portion 28 has ICs 18 on both sides. Flex circuitry 12 may be provided in this configuration by, for example, having a split flex with layers interconnected with vias at portion 24 of flex 12. Further, two flex circuits may be used and interconnected by pad to pad contacts or inter-flex contacts.
  • [0063]
    FIG. 13 depicts another embodiment having flex portions wrapped around opposing edges of substrate 14. Flex circuit 12 has connecting portion 132 wrapped around form portion 134 of substrate 14. Form portion 134 is a type of perimeter edge 16B shaped to provide a larger surface for transit of the flex circuit. In a preferred methodology for assembling this embodiment, the depicted ICs 18 are first mounted to flex circuit 12. Flex portion 26 associated with IC 18 a is placed in position relative to the substrate. Flex circuit 12 is then wrapped around edge 16 of substrate 14 a first time. Appropriate adhesive lamination or other techniques are used to attach flex 12 and ICs 18 a and 18 b to substrate 14. Connecting portion 132 of flex circuit 12 is wrapped around form portion 134. Adhesive may be used to make back-to-back connections between the depicted ICs 18. Lamination or other adhesive or bonding techniques may be used to attach the two layers of flex 12 to each other at flex portions 24. Further, the two layers of flex circuitry 12 wrapped around edge 16A may interconnected with by pad to pad contacts or inter-flex contacts. Flex 12 is wrapped again around edge 16A, putting IC 18 c into position. IC 18 d is positioned back-to-back with IC 18 e and attached.
  • [0064]
    FIG. 14 depicts another embodiment having a flex portion wrapped around opposing edges of substrate 14. Flex circuit 12 has connecting portion 132 wrapped around form portion 134 of substrate 14. Connecting portion 132 preferably has more than one conductive layer, and may have three or four or more conductive layers. Such layers may be beneficial to route signals for applications such as, for example, a FB-DIMM (fully-buffered DIMM) which may have less DIMM input/output signals than a registered DIMM, but may have more interconnect traces required among devices on the DIMM, such as, for example, the C/A copy A and C/A copy B (command/address) signals produced by an FB-DIMM advanced memory buffer (AMB). Flex 12 terminates at end 136, which may be at the level of flex portion 28 or may extend to the level of portion 24 and be attached to substrate 14. While two sets of module contacts 20 are shown, other embodiments may have only one set and may not have flex 12 wrapped around edge 16A of substrate 14.
  • [0065]
    FIG. 15 depicts a cross-sectional view of another alternative embodiment of the present invention. Flex circuit 12 exhibits contacts 20 proximal to opposing edges 192. Connecting portion 132 of flex circuit 12 is wrapped about form portion 134 of substrate 14. Contacts 20 are, in this embodiment, arranged proximal to opposite edges 192 of flex circuit 12. In a preferred methodology for assembling this embodiment, the depicted ICs 18 are first mounted to flex circuit 12. Flex circuit 12 is wrapped about form portion 134 of substrate 14 and preferably aligned to substrate 14 with tooling holes. Portion 24 of flex circuit 12 is preferably laminated to substrate 14.
  • [0066]
    FIG. 16 depicts an alternative embodiment of the present invention.
  • [0067]
    FIG. 17 depicts an alternative embodiment of the present invention having CSPs on the external side of a flex circuit.
  • [0068]
    FIG. 18 depicts an alternative embodiment of the present invention having CSPs mounted between a flex circuit and substrate.
  • [0069]
    FIG. 19 depicts an alternative embodiment of the present invention in which the flex circuit transits over an end of the substrate opposite the module contacts.
  • [0070]
    FIG. 20 is a preferred embodiment of the present invention similar to that depicted in earlier FIG. 11.
  • [0071]
    FIGS. 21 and 22 depict an alternative embodiment of the present invention that employs a connector 200 to provide selective interconnection between portions 202A and 202B of flex circuit 12 associated respectively with lateral sides S1 and S2 of substrate 14. The depicted connector 200 has first part 200B and 200A that interconnect in cavity 204 of flex circuit 12. One example of connector 200 is a 500024/50027 Molex connector but a variety of different connectors may be employed in embodiments of the invention. The depicted connector 200 is disposed in substrate cavity and typically will have a first part 200A and a second part 200B.
  • [0072]
    FIGS. 23 and 24 depict an alternative circuit module. In the embodiment shown in FIGS. 23 and 24 flex circuit 12 is a rigid flex. FIG. 23 is an elevation view. FIG. 24 is a cross-sectional view. As shown, flex circuit 12 has two rigid portions 13 connected by a bend 31 at the flexible region. Imposing bend 31 in flex circuit 12 creates an open-ended pocket 32 into which may be at least partially inserted a support or substrate 14 as shown in earlier FIGS. and/or a heat spreader such as heat spreader 152 shown in FIG. 24.
  • [0073]
    Both rigid portions 13 of flex circuit 12 have ICs 18 mounted on opposing sides. Heat spreader 152 shown between rows of ICs 18, may be attached to the upper major surface of one or both of the depicted ICs 18. Heat spreader 152 is preferably copper or other heat conductive metal or metal alloy. Contacts 20 are presented along the sides of rigid portion 13 proximal to edge 16. Contacts 20 and edge 16 are sized and arranged for insertion into a card edge connector or socket.
  • [0074]
    FIGS. 25 and 26 depict another alternative circuit module. FIG. 27 is an elevation view. FIG. 28 is a cross-sectional view. In this embodiment, substrate 14 is a circuit board preferably made of FR4 having etched copper layers. ICs 18 are mounted along substrate 14. Additional ICs 18 are mounted along flex circuit 12. Flex circuit 12 if folded over the top edge of substrate 12 to interconnect ICs 18 on flex circuit 12. The depicted adjacent ICs in FIG. 26 may be attached adhesively back-to-back and may be provided with a heat spreader 152 (FIG. 24) between them. Flex level transitions 26 bend from flex portion 28 to flex portion 24. Flex portion 24, in this embodiment, has contacts for electrical connection to substrate 14. Substrate 14 has contacts 20 for connection to a card edge connector or socket.
  • [0075]
    FIGS. 27 and 28 depict another alternative circuit module. FIG. 28 is an elevation view. FIG. 26 is a cross-sectional view. Flex circuit 12 is bent lengthwise about substrate 14 at bend 204. At bend 202, flex circuit 12 is bent back over heat spreader 152. Preferably, the upper major surfaces of the ICs 18 adjacent to substrate 14 are attached to substrate 14. Flex level transitions 26 A and 26 B bend to align portion 24 of flex circuit 12 for attachment to substrate 14. Flex transition 26 A passes through slot 121 formed in substrate 14. In this alternative embodiment, substrate 14 is shaped in a manner devised to center contacts 20 in the cross-section. Some contacts 20 are depicted on substrate 14. In this embodiment, substrate 14 is preferably a circuit board made of FR4. Portions 24 of flex circuit 12 may have contact pads for electrical connection to corresponding contact pads on substrate 14. In other embodiments, flex circuit 12 may be folded about the edge of substrate 14 or contacts 20 may appear on only one side of module 10.
  • [0076]
    Although the present invention has been described in detail, it will be apparent to those skilled in the art that many embodiments taking a variety of specific forms and reflecting changes, substitutions and alterations can be made without departing from the spirit and scope of the invention. The described embodiments illustrate the scope of the claims but do not restrict the scope of the claims.

Claims (57)

1. A memory expansion board comprising:
(a) a rigid substrate having two opposing lateral sides and an edge;
(b) a flex circuit wrapped about the edge of the rigid substrate, the flex circuit having a first side and a second side, a portion of the flex circuit attached to at least one of the lateral sides of the rigid substrate, the flex circuit having plural contacts adapted for connection to a circuit board socket, the plural contacts being disposed near the edge of the rigid substrate on the outside side of the flex circuit;
(c) plural memory CSPs mounted on the first side and second side of the flex circuit.
2. The memory expansion board of claim 1 in which the plural CSPs each have a top surface and one or more of the top surfaces of the plural CSPs is attached to the rigid substrate.
3. The memory expansion board of claim 1 in which the rigid substrate is made of a conductive material.
4. The memory expansion board of claim 1 in which the rigid substrate is made of a thermally conductive material.
5. The memory expansion board of claim 1 in which the rigid substrate has an extension.
6. The memory expansion board of claim 1 further comprising at least one alignment opening of the flex circuit matching at least one alignment opening of the rigid substrate.
7. The memory expansion board of claim 1 further comprising at least one alignment opening of the flex circuit matching at least one alignment protrusion of the rigid substrate.
8. The memory expansion board of claim 1 further comprising at least one alignment tab of the rigid substrate.
9. A circuit module comprising:
a substrate having a first and a second lateral side and a first perimeter edge and a second perimeter edge;
a flex circuit having a first side and a second side, the first side having expansion board contacts adapted for connection to an expansion board slot and having a set of contact arrays, the flex circuit being wrapped about the first perimeter edge of the substrate to place the expansion board contacts of the first side closer to the first perimeter edge of the substrate than is disposed the set of contact arrays and to place the second side of the flex circuit closer to the lateral sides of the substrate than is disposed the first side of the flex circuit.
10. A circuit module comprising:
a substrate having a first and a second lateral side and a first perimeter edge and a second perimeter edge;
a flex circuit having a first side and a second side, the first side having expansion board contacts adapted for connection to an expansion board slot and having a set of contact arrays, the flex circuit being wrapped about the first perimeter edge of the substrate to place the expansion board contacts of the first side closer to the second perimeter edge of the substrate than is disposed the set of contact arrays and to place the second side of the flex circuit closer to the lateral sides of the substrate than is disposed the first side of the flex circuit.
11. A circuit module comprising a flex circuit having a first side having contacts adapted for connection to a socket, a second side, and being imposed with a bend to form an open-ended pocket having an inward side and an outward side and being open at one end and closed at the other end of the pocket, the first side of the flex circuit being on the outward side of the pocket and the second side of the flex circuit being on the inward side of the pocket.
12. The circuit module of claim 11 further comprising a rigid interposer disposed at least partially in the open-ended pocket of the flex circuit.
13. The circuit module of claim 12 in which the rigid interposer is made of a conductive material.
14. The circuit module of claim 11 further comprising a support member disposed at least partially in the open-ended pocket of the flex circuit.
15. The circuit module of claim 11 further comprising a heat-conducting member disposed at least partially in the open-ended pocket of the flex circuit.
16. The circuit module of claim 12, in which the rigid interposer has a necked narrow portion disposed adjacent to the closed end of the pocket.
17. The circuit module 11 in which the flex circuit has two end portions, each end portion having a plurality of memory CSPs mounted on the first and second sides of the flex circuit.
18. A circuit module comprising:
(a) a flex circuit having an inner side and an outer side;
(b) plural CSPs mounted along the inner side and the outer side of the flex circuit;
(c) a bend in the flex circuit between first and second portions of the flex circuit, the first and second portions each having contacts arranged along their outer side, the contacts for mounting the circuit module in a card edge connector, the bend separating a first set of the plural CSPs from a second set of the plural CSPs;
(d) a support structure about which the flex circuit transits through the bend.
19. The circuit module of claim 18 in which at least one of the CSPs on the inner side of the flex circuit is adhesively connected to the support structure.
20. The circuit module of claim 18 in which at least one of the CSPs on the inner side of the flex circuit is thermally connected to the support structure.
21. The circuit module of claim 18 in which a portion of the flex circuit is laminated to the support structure.
22. The circuit module of claim 18 in which the bend in the flex circuit creates an open-ended pocket having a closed end and an open end and the support structure exhibits a first portion having a first thickness at the closed end of the pocket and presents a second portion having a second thickness at the open end of the pocket in the flex circuit.
23. The circuit module of claim 18 in which the support structure has a first portion and a second portion, the first portion being thinner than the second portion.
24. A method for devising a circuit module comprising the steps of:
providing a flex circuit having first and second sides and first and second long perimeter edges and first and second short perimeter edges with a set of module contacts along the first side and first and second pluralities of CSPs disposed laterally about the set of module contacts to place the first plurality of CSPs nearer the first long perimeter edge of the flex circuit than is disposed the set of module contacts and the second plurality of CSPs nearer the second long perimeter edge of the flex circuit than is disposed the set of module contacts;
a substrate having first and second lateral sides and a first long perimeter edge and a second long perimeter edge;
wrapping the flex circuit about the substrate to dispose the second side of the flex circuit closer to the first and second lateral sides of the substrate than is disposed the first side of the flex circuit and to dispose the set of module contacts nearer the first long perimeter edge of the substrate than the second long perimeter edge of the substrate and to place the first plurality of CSPs closer to the first lateral side of the substrate than is disposed the second plurality of CSPs.
25. The method of claim 24 in which the provided flex circuit has third and fourth pluralities of CSPs.
26. The method of claim 24 in which the CSPs are each stacked modules composed of two or more individual CSPs.
27. A method for providing increased memory capacity for a computer system comprising the steps of:
providing a circuit module in accordance with claim 1 and inserting said module into an expansion slot.
28. A method for providing increased memory capacity for a computing system comprising the steps of:
providing a circuit module devised in accordance with claim 24 and inserting said module into an expansion slot on a motherboard.
28. A method of assembling a circuit module comprising the steps:
providing a flex circuit having a first side and a second side, the first side having a plurality of pads for mounting components and a plurality of contacts for insertion in an expansion board slot; the second side having a plurality of pads for mounting components;
mounting plural CSPs along the first side of the flex circuit;
mounting plural discrete components along the first side of the flex circuit;
mounting plural CSPs along the second side of the flex circuit;
mounting plural discrete components along the second side of the flex circuit;
providing a rigid substrate having first and second major surfaces and an edge; and
wrapping the flex circuit about the edge of the rigid substrate, with the first side facing outward, such that a first set of the plurality of contacts are disposed proximal to the edge of the rigid substrate.
29. The method of claim 28 in which the step of wrapping the flex circuit further includes wrapping such that a second set of the plurality of contacts are disposed proximal to the edge of the rigid substrate.
30. The method of claim 28 further including the step of attaching at least one of the plural CSPs along the second side of the flex circuit to the rigid substrate.
31. The method of claim 28 further including the step of thermally connecting at least one of the plural CSPs along the second side of the flex circuit to the rigid substrate.
32. The method of claim 28 further including the step of attaching a heat radiating clip to selected ones of the plural CSPs.
33. The method of claim 28 further including the step of attaching a heat radiating element to at least one of the CSPs along the first side of the flex circuit.
34. The method of claim 28 further including the step of inserting the plurality of contacts at least partially into an expansion board slot for connection to an operating environment.
35. A method of assembling a circuit module comprising the steps:
providing a flex circuit having a first side and a second side and a plurality of contacts along the first side for insertion in an expansion board slot;
mounting at least first and second CSPs along the first side of the flex circuit;
providing a rigid substrate having first and second major sides and an edge;
wrapping the flex circuit about the rigid substrate to dispose the first of the at least first and second CSPs closer to the first major side of the rigid substrate than the second major side of the substrate and dispose the second of the at least first and second CSPs closer to the second major side of the rigid substrate than the first major side of the substrate and attaching the flex circuit to the rigid substrate such that the plural contacts are presented proximal to the edge of the rigid substrate for insertion into the expansion board slot.
36. The method of claim 35 in which the step of attaching the flex circuit to the rigid substrate comprises lamination.
37. The method of claim 35 further comprising mounting third and fourth CSPs along the second side of the flex circuit.
38. The method of claim 35 in which the rigid substrate is made of heat conducting material.
39. The method of claim 35 in which the rigid substrate has first portion and a second portion, the first portion being thinner than the second portion.
40. The method of claim 35 further including the step of thinning the rigid substrate along the edge of the rigid substrate.
41. The method of claim 35 further including the step of aligning a tooling hole of the flex circuit with a tooling hole of the rigid substrate.
42. A populated flexible circuit comprising:
a flexible circuit having a first major side and a second major side, the flexible circuit exhibiting along the first major side, first-side first and second sets of contact site arrays between which is located a row of connector contacts, the second major side of the flexible circuit exhibiting second-side first and second sets of contact site arrays which correspond to the first-side first and second sets of contact site arrays, each of the first-side and second-side first and second sets of contact site arrays comprising at least two surface mount arrays, the flexible circuit providing connections between the at least two surface mount arrays of each of the first-side first and second sets of contact site arrays and the at least two surface mount arrays of each of the second-side first and second sets of contact site arrays;
a plurality of CSPs that populate the at least two surface mount arrays of each of the first-side first and second sets of contact site arrays and the at least two surface mount arrays of each of the second-side first and second sets of contact site arrays.
43. A circuit assembly comprising:
a flexible circuit having a first major side and a second major side, the flexible circuit having at least one or more rows of surface mount arrays on the first major side and two or more rows of surface mount arrays on the second major side, the flexible circuit having a arcuate bend between a selected two of the two or more rows of surface mount arrays on the second major side, the second major side facing inward to the arcuate bend, the flexible circuit having an end edge and connector contacts disposed proximal to the end edge;
a plurality of CSPs that populate the one or more rows of surface mount arrays of the first major side and the two or more rows of surface mount arrays of the second major side, each of the CSPs having a top major surface;
a support substrate partially within the arcuate bend, the support substrate having a first side and a second side and an edge, at least one of the top major surfaces of the plurality of CSPs populating the two or more rows of surface mount arrays of the second major side being attached to the support substrate, the edge of the support substrate being adapted for insertion into a card edge connector.
44. A circuit assembly comprising:
a flexible circuit having a first major side and a second major side, the flex circuit having two or more rows of surface mount arrays on the second major side, the flexible circuit having an arcuate bend between a selected two of the two or more rows of surface mount arrays on the second major side, the second major side facing inward to the arcuate bend, the flexible circuit having an end edge and connector contacts disposed proximal to the end edge;
a plurality of CSPs that populate the two or more rows of surface mount arrays of the second major side, each of the CSPs having a top major surface;
a support substrate partially within the arcuate bend, the support substrate having a first side and a second side and an edge, at least one of the top major surfaces of the plurality of CSPs populating the two or more rows of surface mount arrays of the second major side being attached to the support substrate, the edge of the support substrate being adapted for insertion into a card edge connector.
45. A circuit module comprising:
a rigid substrate having two opposing lateral sides and two opposing end edges;
a flexible circuit wrapped about at least one of the two opposing end edges, the flexible circuit having a first side and a second side each having one or more rows of contact site arrays, a portion of the flex circuit being attached to at least one of the lateral sides of the circuit board, the flex circuit having plural contacts adapted for electrical connection to a card edge connector.
46. The circuit module of claim 45 in which the plural contacts are on the first side of the flex circuit, and in which a portion of the second side of the flex circuit opposite at least some of the plural contacts is laminated to the rigid substrate.
47. A circuit module comprising:
a circuit board having two opposing lateral sides and an edge;
a flex circuit wrapped around the edge of the rigid substrate, the flex circuit having an inner side and an outer side, the inner and outer sides each having two or more rows of contact site arrays, a portion of the flex circuit being laminated to at least one of the lateral sides of the circuit board, the flex circuit having plural contacts adapted for electrical connection to the circuit board;
a plurality of CSPs mounted to the two or more rows of contacts site arrays of the inner side and the outer side of the flex circuit.
48. A method to encourage the extraction of thermal energy from a CSP that operates in conjunction with at least one other CSP comprising the steps of:
providing a first CSP having a top surface and a bottom surface, there being CSP contacts along the bottom surface;
providing a thermally conductive substrate member and attaching the first CSP to the thermally conductive substrate member;
providing a flex circuit and attaching the first CSP to the flex circuit, the attachment being effectuated employing the CSP contacts of the first CSP and employing the thermally conductive substrate member as a support for a part of the flex circuit;
providing a second CSP having a bottom surface and CSP contacts and attaching the second CSP to the flex circuit, the attachment being effectuated employing the CSP contacts of the second CSP so that the CSP contacts of the first CSP are separated from the CSP contacts of the second CSP by a part of the flex circuit.
49. The method of claim 48 further comprising a set of contacts electrically connected to the flex circuit to provide connective facility for the first and second CSPs to an operating environment.
50. The method of claim 48 in which the thermally conductive substrate member is comprised of a metal.
51. The method of claim 50 in which the thermally conductive substrate member is comprised of aluminum.
52. The method of claim 50 in which the thermally conductive substrate member is comprised of a radiative portion having fins.
53. The method of claim 48 in which the thermally conductive substrate member is comprised of FR4 and a metallic layer.
54. The method of claim 48 in which the attachment of the first CSP to the thermally conductive substrate member is by the top surface of the first CSP.
55. A circuit module to encourage the extraction of thermal energy from a CSP that operates in conjunction with at least one other CSP comprising:
a first CSP having a top surface and a bottom surface and CSP contacts, the CSP contacts being along the bottom surface;
a thermally conductive substrate member attached to the first CSP;
a flex circuit attached to the first CSP, the attachment being effectuated employing the CSP contacts of the first CSP, the thermally conductive substrate member being a support for a part of the flex circuit;
a second CSP attached the flex circuit, the attachment being effectuated employing the CSP contacts of the second CSP so that the CSP contacts of the first CSP are separated from the CSP contacts of the second CSP by at least a part of the flex circuit.
56. A circuit module comprising:
a substrate having first and second lateral sides and a cavity;
flex circuitry having a first portion adjacent to the first lateral side of the substrate and a second portion adjacent to the second lateral side of the substrate;
the flex circuitry having edge card connector contacts;
a connector having first and second parts which are selectively joinable;
the first part of the connector being connected to the first portion of the flex circuitry and the second part of the connector being connected to the second portion of the flex circuitry, the first and second parts of the flex circuitry being joined in the cavity of the substrate.
US10934027 2004-09-03 2004-09-03 Thin module system and method Abandoned US20060050492A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10934027 US20060050492A1 (en) 2004-09-03 2004-09-03 Thin module system and method

Applications Claiming Priority (38)

Application Number Priority Date Filing Date Title
US10934027 US20060050492A1 (en) 2004-09-03 2004-09-03 Thin module system and method
US11005992 US7480152B2 (en) 2004-09-03 2004-12-07 Thin module system and method
US11007551 US7511968B2 (en) 2004-09-03 2004-12-08 Buffered thin module system and method
US11058979 US7468893B2 (en) 2004-09-03 2005-02-16 Thin module system and method
US11068688 US7324352B2 (en) 2004-09-03 2005-03-01 High capacity thin module system and method
US11077952 US7606040B2 (en) 2004-09-03 2005-03-11 Memory module system and method
US11123721 US20060053345A1 (en) 2004-09-03 2005-05-06 Thin module system and method
US11125018 US7606049B2 (en) 2004-09-03 2005-05-09 Module thermal management system and method
US11157565 US7423885B2 (en) 2004-09-03 2005-06-21 Die module system
US11173450 US20060049512A1 (en) 2004-09-03 2005-07-01 Thin module system and method with skew reduction
US11187269 US7606050B2 (en) 2004-09-03 2005-07-22 Compact module system and method
US11193954 US20060049513A1 (en) 2004-09-03 2005-07-29 Thin module system and method with thermal management
PCT/US2005/028547 WO2006028643A3 (en) 2004-09-03 2005-08-10 Circuit module system and method
FR0508522A FR2878118A1 (en) 2004-09-03 2005-08-11 circuit module, process for its assembly, the system for extraction of thermal energy from a circuit module and thermal management system
CA 2515714 CA2515714A1 (en) 2004-09-03 2005-08-11 Circuit module system and method
CN 200510113251 CN1819185A (en) 2004-09-03 2005-08-12 Die module system and method
GB0822086A GB0822086D0 (en) 2004-09-03 2005-08-12 Circuit module system and method
GB0516622A GB2417836B (en) 2004-09-03 2005-08-12 Circuit module system and method
DE200510038254 DE102005038254A1 (en) 2004-09-03 2005-08-12 Circuit module system and method
GB0822085A GB2452880B (en) 2004-09-03 2005-08-12 Circuit module system and method
JP2005235451A JP2006074031A (en) 2004-09-03 2005-08-15 Circuit module system and method
KR20050074824A KR100880054B1 (en) 2004-09-03 2005-08-16 Circuit module system and method
US11231418 US7443023B2 (en) 2004-09-03 2005-09-21 High capacity thin module system
US11242962 US20060048385A1 (en) 2004-09-03 2005-10-04 Minimized profile circuit module systems and methods
US11255061 US7542297B2 (en) 2004-09-03 2005-10-19 Optimized mounting area circuit module system and method
US11283355 US7446410B2 (en) 2004-09-03 2005-11-18 Circuit module with thermal casing systems
US11331969 US7616452B2 (en) 2004-09-03 2006-01-13 Flex circuit constructions for high capacity circuit module systems and methods
US11332740 US7579687B2 (en) 2004-09-03 2006-01-13 Circuit module turbulence enhancement systems and methods
US11397597 US7760513B2 (en) 2004-09-03 2006-04-03 Modified core for circuit module system and method
US11564199 US20070111606A1 (en) 2004-09-03 2006-11-28 Buffered Thin Module System and Method
US11624608 US7602613B2 (en) 2004-09-03 2007-01-18 Thin module system and method
US11777925 US7522421B2 (en) 2004-09-03 2007-07-13 Split core circuit module
US11869644 US7606042B2 (en) 2004-09-03 2007-10-09 High capacity thin module system and method
US11869687 US7522425B2 (en) 2004-09-03 2007-10-09 High capacity thin module system and method
US11961477 US7459784B2 (en) 2004-09-03 2007-12-20 High capacity thin module system
US12147218 US7768796B2 (en) 2004-09-03 2008-06-26 Die module system
US12258189 US7626259B2 (en) 2004-09-03 2008-10-24 Heat sink for a high capacity thin module system
US12263060 US7737549B2 (en) 2004-09-03 2008-10-31 Circuit module with thermal casing systems

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
US11005992 Continuation-In-Part US7480152B2 (en) 2004-09-03 2004-12-07 Thin module system and method
US11007551 Continuation-In-Part US7511968B2 (en) 2004-09-03 2004-12-08 Buffered thin module system and method
US11123721 Continuation-In-Part US20060053345A1 (en) 2004-09-03 2005-05-06 Thin module system and method

Related Child Applications (9)

Application Number Title Priority Date Filing Date
US11005992 Continuation-In-Part US7480152B2 (en) 2004-09-03 2004-12-07 Thin module system and method
US11007551 Continuation-In-Part US7511968B2 (en) 2004-09-03 2004-12-08 Buffered thin module system and method
US11068688 Continuation-In-Part US7324352B2 (en) 2004-09-03 2005-03-01 High capacity thin module system and method
US11231418 Continuation-In-Part US7443023B2 (en) 2004-09-03 2005-09-21 High capacity thin module system
US11255061 Continuation-In-Part US7542297B2 (en) 2004-09-03 2005-10-19 Optimized mounting area circuit module system and method
US11283355 Continuation-In-Part US7446410B2 (en) 2004-09-03 2005-11-18 Circuit module with thermal casing systems
US11397597 Continuation-In-Part US7760513B2 (en) 2004-09-03 2006-04-03 Modified core for circuit module system and method
US11624608 Division US7602613B2 (en) 2004-09-03 2007-01-18 Thin module system and method
US11777925 Continuation-In-Part US7522421B2 (en) 2004-09-03 2007-07-13 Split core circuit module

Publications (1)

Publication Number Publication Date
US20060050492A1 true true US20060050492A1 (en) 2006-03-09

Family

ID=35995989

Family Applications (3)

Application Number Title Priority Date Filing Date
US10934027 Abandoned US20060050492A1 (en) 2004-09-03 2004-09-03 Thin module system and method
US11005992 Active 2025-08-07 US7480152B2 (en) 2004-09-03 2004-12-07 Thin module system and method
US11624608 Active US7602613B2 (en) 2004-09-03 2007-01-18 Thin module system and method

Family Applications After (2)

Application Number Title Priority Date Filing Date
US11005992 Active 2025-08-07 US7480152B2 (en) 2004-09-03 2004-12-07 Thin module system and method
US11624608 Active US7602613B2 (en) 2004-09-03 2007-01-18 Thin module system and method

Country Status (2)

Country Link
US (3) US20060050492A1 (en)
CN (1) CN1819185A (en)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060050496A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Thin module system and method
US20060090102A1 (en) * 2004-09-03 2006-04-27 Wehrly James D Jr Circuit module with thermal casing systems and methods
US20060125067A1 (en) * 2004-09-03 2006-06-15 Staktek Group L.P. Flex circuit constructions for high capacity circuit module systems and methods
US20070025108A1 (en) * 2005-07-28 2007-02-01 Kingsford Howard A Mounting light emitting diodes
US20070126125A1 (en) * 2005-05-18 2007-06-07 Staktek Group L.P. Memory Module System and Method
US7252520B1 (en) 2006-04-25 2007-08-07 Tyco Electronics Corporation Flex film card edge connector and cable assembly
US20070212902A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US20070211426A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US20070211711A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US20070212920A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US20070212919A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US20070212906A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US20070247820A1 (en) * 2006-04-24 2007-10-25 Foxconn Technology Co., Ltd. Memory module assembly including heat dissipating members
US20070247819A1 (en) * 2006-04-24 2007-10-25 Foxconn Technology Co., Ltd. Memory module assembly including heat dissipating members
US20080002447A1 (en) * 2006-06-29 2008-01-03 Smart Modular Technologies, Inc. Memory supermodule utilizing point to point serial data links
US20080094803A1 (en) * 2004-09-03 2008-04-24 Staktek Group L.P. High Capacity Thin Module System and Method
US20080225476A1 (en) * 2006-01-11 2008-09-18 Chris Karabatsos Tab wrap foldable electronic assembly module and method of manufacture
US7442050B1 (en) 2005-08-29 2008-10-28 Netlist, Inc. Circuit card with flexible connection for memory module with heat spreader
US20080316712A1 (en) * 2004-04-09 2008-12-25 Pauley Robert S High density module having at least two substrates and at least one thermally conductive layer therebetween
US20090166065A1 (en) * 2008-01-02 2009-07-02 Clayton James E Thin multi-chip flex module
US7619893B1 (en) 2006-02-17 2009-11-17 Netlist, Inc. Heat spreader for electronic modules
US20100020515A1 (en) * 2005-03-08 2010-01-28 Smart Modular Technologies, Inc. Method and system for manufacturing micro solid state drive devices
US7715200B2 (en) 2007-09-28 2010-05-11 Samsung Electronics Co., Ltd. Stacked semiconductor module, method of fabricating the same, and electronic system using the same
US20110031628A1 (en) * 2009-08-06 2011-02-10 Fujitsu Limited Semiconductor device module and method of manufacturing semiconductor device module
US8018723B1 (en) 2008-04-30 2011-09-13 Netlist, Inc. Heat dissipation for electronic modules
US8061886B1 (en) 2008-04-30 2011-11-22 Velcro Industries B.V. Securing electrical devices
US8588017B2 (en) 2010-10-20 2013-11-19 Samsung Electronics Co., Ltd. Memory circuits, systems, and modules for performing DRAM refresh operations and methods of operating the same
US20140185255A1 (en) * 2013-01-02 2014-07-03 iJet Technologies, Inc. Method to Use Empty Slots in Onboard Aircraft Servers and Communication Devices to Install Non-Proprietary Servers and Communications Interfaces
US8817458B2 (en) 2012-10-17 2014-08-26 Microelectronics Assembly Technologies, Inc. Flexible circuit board and connection system
US8834182B2 (en) 2012-10-17 2014-09-16 Microelectronics Assembly Technologies Pierced flexible circuit and compression joint
US8837141B2 (en) 2012-10-17 2014-09-16 Microelectronics Assembly Technologies Electronic module with heat spreading enclosure
US8902606B2 (en) 2012-10-17 2014-12-02 Microelectronics Assembly Technologies Electronic interconnect system
US8899994B2 (en) 2012-10-17 2014-12-02 Microelectronics Assembly Technologies, Inc. Compression connector system
US9338895B2 (en) 2012-10-17 2016-05-10 Microelectronics Assembly Technologies Method for making an electrical circuit
US9648754B1 (en) 2013-11-12 2017-05-09 Smart Modular Technologies, Inc. Integrated circuit device system with elevated stacked configuration and method of manufacture thereof

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7606040B2 (en) * 2004-09-03 2009-10-20 Entorian Technologies, Lp Memory module system and method
US7468893B2 (en) * 2004-09-03 2008-12-23 Entorian Technologies, Lp Thin module system and method
US7511968B2 (en) * 2004-09-03 2009-03-31 Entorian Technologies, Lp Buffered thin module system and method
US7324352B2 (en) * 2004-09-03 2008-01-29 Staktek Group L.P. High capacity thin module system and method
US7423885B2 (en) * 2004-09-03 2008-09-09 Entorian Technologies, Lp Die module system
US7606050B2 (en) * 2004-09-03 2009-10-20 Entorian Technologies, Lp Compact module system and method
US20060049513A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Thin module system and method with thermal management
US7606049B2 (en) * 2004-09-03 2009-10-20 Entorian Technologies, Lp Module thermal management system and method
US20060053345A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Thin module system and method
US7579687B2 (en) * 2004-09-03 2009-08-25 Entorian Technologies, Lp Circuit module turbulence enhancement systems and methods
US7760513B2 (en) * 2004-09-03 2010-07-20 Entorian Technologies Lp Modified core for circuit module system and method
WO2007086481A1 (en) * 2006-01-25 2007-08-02 Nec Corporation Electronic device package, module and electronic device
US7511969B2 (en) * 2006-02-02 2009-03-31 Entorian Technologies, Lp Composite core circuit module system and method
US8072772B2 (en) * 2006-02-22 2011-12-06 Oracle America, Inc. Single-chip and multi-chip module for proximity communication
US7289327B2 (en) * 2006-02-27 2007-10-30 Stakick Group L.P. Active cooling methods and apparatus for modules
CN100585848C (en) 2007-04-30 2010-01-27 华为技术有限公司 Module and electronic device
JP2009176815A (en) * 2008-01-22 2009-08-06 Olympus Corp Mounting structure
US20100134982A1 (en) * 2008-12-01 2010-06-03 Meyer Iv George Anthony Memory heat dissipating structure and memory device having the same
US20100134995A1 (en) * 2008-12-02 2010-06-03 Raytheon Company Electrical Interconnection System
US20110051385A1 (en) * 2009-08-31 2011-03-03 Gainteam Holdings Limited High-density memory assembly
US8465327B2 (en) * 2009-11-02 2013-06-18 Apple Inc. High-speed memory connector
DE112011103607T5 (en) * 2010-10-25 2013-08-22 Korea Electric Terminal Co., Ltd. PCB and PCB block for vehicles using the printed circuit board
WO2013110179A1 (en) * 2012-01-27 2013-08-01 Mosaid Technologies Incorporated Method and apparatus for connecting memory dies to form a memory system
USD722003S1 (en) 2012-03-20 2015-02-03 Wald Llc Swivel bracket
USD706203S1 (en) 2012-03-20 2014-06-03 Wald Llc Bracket
US9384104B2 (en) 2013-11-27 2016-07-05 International Business Machines Corporation Testing a processor assembly
US9496633B1 (en) 2015-06-22 2016-11-15 Intel Corporation Memory module adaptor card

Citations (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6180881B2 (en) *
US622739A (en) * 1899-04-11 Pipe-clamp
US3372310A (en) * 1965-04-30 1968-03-05 Radiation Inc Universal modular packages for integrated circuits
US3436604A (en) * 1966-04-25 1969-04-01 Texas Instruments Inc Complex integrated circuit array and method for fabricating same
US3654394A (en) * 1969-07-08 1972-04-04 Gordon Eng Co Field effect transistor switch, particularly for multiplexing
US3718842A (en) * 1972-04-21 1973-02-27 Texas Instruments Inc Liquid crystal display mounting structure
US3727064A (en) * 1971-03-17 1973-04-10 Monsanto Co Opto-isolator devices and method for the fabrication thereof
US4429349A (en) * 1980-09-30 1984-01-31 Burroughs Corporation Coil connector
US4437235A (en) * 1980-12-29 1984-03-20 Honeywell Information Systems Inc. Integrated circuit package
US4495546A (en) * 1981-05-18 1985-01-22 Matsushita Electric Industrial Co., Ltd. Hybrid integrated circuit component and printed circuit board mounting said component
US4513368A (en) * 1981-05-22 1985-04-23 Data General Corporation Digital data processing system having object-based logical memory addressing and self-structuring modular memory
US4567543A (en) * 1983-02-15 1986-01-28 Motorola, Inc. Double-sided flexible electronic circuit module
US4645944A (en) * 1983-09-05 1987-02-24 Matsushita Electric Industrial Co., Ltd. MOS register for selecting among various data inputs
US4656605A (en) * 1983-09-02 1987-04-07 Wang Laboratories, Inc. Single in-line memory module
US4724611A (en) * 1985-08-23 1988-02-16 Nec Corporation Method for producing semiconductor module
US4727513A (en) * 1983-09-02 1988-02-23 Wang Laboratories, Inc. Signal in-line memory module
US4733461A (en) * 1984-12-28 1988-03-29 Micro Co., Ltd. Method of stacking printed circuit boards
US4739589A (en) * 1985-07-12 1988-04-26 Wacker-Chemitronic Gesellschaft Fur Elektronik-Grundstoff Mbh Process and apparatus for abrasive machining of a wafer-like workpiece
US4821007A (en) * 1987-02-06 1989-04-11 Tektronix, Inc. Strip line circuit component and method of manufacture
US4823234A (en) * 1985-08-16 1989-04-18 Dai-Ichi Seiko Co., Ltd. Semiconductor device and its manufacture
US4911643A (en) * 1988-10-11 1990-03-27 Beta Phase, Inc. High density and high signal integrity connector
US4982265A (en) * 1987-06-24 1991-01-01 Hitachi, Ltd. Semiconductor integrated circuit device and method of manufacturing the same
US4983533A (en) * 1987-10-28 1991-01-08 Irvine Sensors Corporation High-density electronic modules - process and product
US4985703A (en) * 1988-02-03 1991-01-15 Nec Corporation Analog multiplexer
US4992850A (en) * 1989-02-15 1991-02-12 Micron Technology, Inc. Directly bonded simm module
US4992849A (en) * 1989-02-15 1991-02-12 Micron Technology, Inc. Directly bonded board multiple integrated circuit module
US5099393A (en) * 1991-03-25 1992-03-24 International Business Machines Corporation Electronic package for high density applications
US5104820A (en) * 1989-07-07 1992-04-14 Irvine Sensors Corporation Method of fabricating electronic circuitry unit containing stacked IC layers having lead rerouting
US5191404A (en) * 1989-12-20 1993-03-02 Digital Equipment Corporation High density memory array packaging
US5276418A (en) * 1988-11-16 1994-01-04 Motorola, Inc. Flexible substrate electronic assembly
US5281852A (en) * 1991-12-10 1994-01-25 Normington Peter J C Semiconductor device including stacked die
US5285398A (en) * 1992-05-15 1994-02-08 Mobila Technology Inc. Flexible wearable computer
US5289062A (en) * 1991-03-18 1994-02-22 Quality Semiconductor, Inc. Fast transmission gate switch
US5385341A (en) * 1992-07-14 1995-01-31 Konica Corporation Automatic document conveying apparatus
US5392162A (en) * 1989-10-02 1995-02-21 Glucksman; Dov Z. Illuminated travel make-up mirror
US5394300A (en) * 1992-09-04 1995-02-28 Mitsubishi Denki Kabushiki Kaisha Thin multilayered IC memory card
US5397916A (en) * 1991-12-10 1995-03-14 Normington; Peter J. C. Semiconductor device including stacked die
US5400003A (en) * 1992-08-19 1995-03-21 Micron Technology, Inc. Inherently impedance matched integrated circuit module
US5491612A (en) * 1995-02-21 1996-02-13 Fairchild Space And Defense Corporation Three-dimensional modular assembly of integrated circuits
US5502333A (en) * 1994-03-30 1996-03-26 International Business Machines Corporation Semiconductor stack structures and fabrication/sparing methods utilizing programmable spare circuit
US5600178A (en) * 1993-10-08 1997-02-04 Texas Instruments Incorporated Semiconductor package having interdigitated leads
US5612570A (en) * 1995-04-13 1997-03-18 Dense-Pac Microsystems, Inc. Chip stack and method of making same
US5708297A (en) * 1992-09-16 1998-01-13 Clayton; James E. Thin multichip module
US5714802A (en) * 1991-06-18 1998-02-03 Micron Technology, Inc. High-density electronic module
US5729894A (en) * 1992-07-21 1998-03-24 Lsi Logic Corporation Method of assembling ball bump grid array semiconductor packages
US5869353A (en) * 1997-11-17 1999-02-09 Dense-Pac Microsystems, Inc. Modular panel stacking process
US6014316A (en) * 1997-06-13 2000-01-11 Irvine Sensors Corporation IC stack utilizing BGA contacts
US6021048A (en) * 1998-02-17 2000-02-01 Smith; Gary W. High speed memory module
US6025992A (en) * 1999-02-11 2000-02-15 International Business Machines Corp. Integrated heat exchanger for memory module
US6028352A (en) * 1997-06-13 2000-02-22 Irvine Sensors Corporation IC stack utilizing secondary leadframes
US6028365A (en) * 1998-03-30 2000-02-22 Micron Technology, Inc. Integrated circuit package and method of fabrication
US6034878A (en) * 1996-12-16 2000-03-07 Hitachi, Ltd. Source-clock-synchronized memory system and memory unit
US6036132A (en) * 1996-03-08 2000-03-14 Iro Ab Air flow disruptor in yarn feeder
US6040624A (en) * 1997-10-02 2000-03-21 Motorola, Inc. Semiconductor device package and method
US6172874B1 (en) * 1998-04-06 2001-01-09 Silicon Graphics, Inc. System for stacking of integrated circuit packages
US6178093B1 (en) * 1996-06-28 2001-01-23 International Business Machines Corporation Information handling system with circuit assembly having holes filled with filler material
US6180881B1 (en) * 1998-05-05 2001-01-30 Harlan Ruben Isaak Chip stack and method of making same
US6187652B1 (en) * 1998-09-14 2001-02-13 Fujitsu Limited Method of fabrication of multiple-layer high density substrate
US6208521B1 (en) * 1997-05-19 2001-03-27 Nitto Denko Corporation Film carrier and laminate type mounting structure using same
US6208546B1 (en) * 1996-11-12 2001-03-27 Niigata Seimitsu Co., Ltd. Memory module
US6205654B1 (en) * 1992-12-11 2001-03-27 Staktek Group L.P. Method of manufacturing a surface mount package
US20020001216A1 (en) * 1996-02-26 2002-01-03 Toshio Sugano Semiconductor device and process for manufacturing the same
US6336262B1 (en) * 1996-10-31 2002-01-08 International Business Machines Corporation Process of forming a capacitor with multi-level interconnection technology
US20020006032A1 (en) * 2000-05-23 2002-01-17 Chris Karabatsos Low-profile registered DIMM
US6343020B1 (en) * 1998-12-28 2002-01-29 Foxconn Precision Components Co., Ltd. Memory module
US6347394B1 (en) * 1998-11-04 2002-02-12 Micron Technology, Inc. Buffering circuit embedded in an integrated circuit device module used for buffering clocks and other input signals
US6349050B1 (en) * 2000-10-10 2002-02-19 Rambus, Inc. Methods and systems for reducing heat flux in memory systems
US6351629B1 (en) * 2000-09-12 2002-02-26 Dieceland Technologies Corp. Compact modular wireless telephone
US6357023B1 (en) * 1998-04-08 2002-03-12 Kingston Technology Co. Connector assembly for testing memory modules from the solder-side of a PC motherboard with forced hot air
US20020030995A1 (en) * 2000-08-07 2002-03-14 Masao Shoji Headlight
US6358772B2 (en) * 1997-05-02 2002-03-19 Nec Corporation Semiconductor package having semiconductor element mounting structure of semiconductor package mounted on circuit board and method of assembling semiconductor package
US6360433B1 (en) * 1999-04-23 2002-03-26 Andrew C. Ross Universal package and method of forming the same
US20030002262A1 (en) * 2001-07-02 2003-01-02 Martin Benisek Electronic printed circuit board having a plurality of identically designed, housing-encapsulated semiconductor memories
US6514793B2 (en) * 1999-05-05 2003-02-04 Dpac Technologies Corp. Stackable flex circuit IC package and method of making same
US20030026155A1 (en) * 2001-08-01 2003-02-06 Mitsubishi Denki Kabushiki Kaisha Semiconductor memory module and register buffer device for use in the same
US6521984B2 (en) * 2000-11-07 2003-02-18 Mitsubishi Denki Kabushiki Kaisha Semiconductor module with semiconductor devices attached to upper and lower surface of a semiconductor substrate
US20030035328A1 (en) * 2001-08-08 2003-02-20 Mitsubishi Denki Kabushiki Kaisha Semiconductor memory device shiftable to test mode in module as well as semiconductor memory module using the same
US6528870B2 (en) * 2000-01-28 2003-03-04 Kabushiki Kaisha Toshiba Semiconductor device having a plurality of stacked wiring boards
US20030045025A1 (en) * 2000-01-26 2003-03-06 Coyle Anthony L. Method of fabricating a molded package for micromechanical devices
US6531772B2 (en) * 1996-10-08 2003-03-11 Micron Technology, Inc. Electronic system including memory module with redundant memory capability
US20030049886A1 (en) * 2001-09-07 2003-03-13 Salmon Peter C. Electronic system modules and method of fabrication
US6677670B2 (en) * 2000-04-25 2004-01-13 Seiko Epson Corporation Semiconductor device
US20040012991A1 (en) * 2002-07-18 2004-01-22 Mitsubishi Denki Kabushiki Kaisha Semiconductor memory module
US6683377B1 (en) * 2000-05-30 2004-01-27 Amkor Technology, Inc. Multi-stacked memory package
US20040021211A1 (en) * 2002-08-05 2004-02-05 Tessera, Inc. Microelectronic adaptors, assemblies and methods
US6690584B2 (en) * 2000-08-14 2004-02-10 Fujitsu Limited Information-processing device having a crossbar-board connected to back panels on different sides
US6699730B2 (en) * 1996-12-13 2004-03-02 Tessers, Inc. Stacked microelectronic assembly and method therefor
US6712226B1 (en) * 2001-03-13 2004-03-30 James E. Williams, Jr. Wall or ceiling mountable brackets for storing and displaying board-based recreational equipment
US6839266B1 (en) * 1999-09-14 2005-01-04 Rambus Inc. Memory module with offset data lines and bit line swizzle configuration
US6873534B2 (en) * 2002-03-07 2005-03-29 Netlist, Inc. Arrangement of integrated circuits in a memory module
US20060020740A1 (en) * 2004-07-22 2006-01-26 International Business Machines Corporation Multi-node architecture with daisy chain communication link configurable to operate in unidirectional and bidirectional modes
US20060053345A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Thin module system and method
US20060050497A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Buffered thin module system and method
US20060050496A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Thin module system and method
US7180167B2 (en) * 2001-10-26 2007-02-20 Staktek Group L. P. Low profile stacking system and method
US20080030972A1 (en) * 2004-09-03 2008-02-07 Staktek Group L.P. High Capacity Thin Module System and Method

Family Cites Families (110)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US622568A (en) * 1899-04-04 tochtermann
US3772776A (en) 1969-12-03 1973-11-20 Thomas & Betts Corp Method of interconnecting memory plane boards
US3582865A (en) 1969-12-16 1971-06-01 Ibm Microcircuit module and connector
US3704455A (en) 1971-02-01 1972-11-28 Alfred D Scarbrough 3d-coaxial memory construction and method of making
US3746934A (en) 1971-05-06 1973-07-17 Siemens Ag Stack arrangement of semiconductor chips
US3766439A (en) 1972-01-12 1973-10-16 Gen Electric Electronic module using flexible printed circuit board with heat sink means
NL7610306A (en) 1976-09-16 1978-03-20 Du Pont A contact arrangement for an integrated circuit.
US4342069A (en) 1979-07-02 1982-07-27 Mostek Corporation Integrated circuit package
US4288841A (en) 1979-09-20 1981-09-08 Bell Telephone Laboratories, Incorporated Double cavity semiconductor chip carrier
JPS58159360A (en) 1982-03-17 1983-09-21 Fujitsu Ltd Semiconductor device
FR2538989B1 (en) 1982-12-30 1985-10-04 Thomson Csf assembly structure of complex electronic circuits, and method of improving the reliability of such an assembly
US4672421A (en) 1984-04-02 1987-06-09 Motorola, Inc. Semiconductor packaging and method
US4587596A (en) 1984-04-09 1986-05-06 Amp Incorporated High density mother/daughter circuit board connector
US5014161A (en) 1985-07-22 1991-05-07 Digital Equipment Corporation System for detachably mounting semiconductors on conductor substrate
US4696525A (en) 1985-12-13 1987-09-29 Amp Incorporated Socket for stacking integrated circuit packages
US4850892A (en) 1985-12-16 1989-07-25 Wang Laboratories, Inc. Connecting apparatus for electrically connecting memory modules to a printed circuit board
US4709300A (en) 1986-05-05 1987-11-24 Itt Gallium Arsenide Technology Center, A Division Of Itt Corporation Jumper for a semiconductor assembly
US4763188A (en) 1986-08-08 1988-08-09 Thomas Johnson Packaging system for multiple semiconductor devices
US5016138A (en) 1987-10-27 1991-05-14 Woodman John K Three dimensional integrated circuit package
US5159535A (en) 1987-03-11 1992-10-27 International Business Machines Corporation Method and apparatus for mounting a flexible film semiconductor chip carrier on a circuitized substrate
US4862249A (en) 1987-04-17 1989-08-29 Xoc Devices, Inc. Packaging system for stacking integrated circuits
US4771366A (en) 1987-07-06 1988-09-13 International Business Machines Corporation Ceramic card assembly having enhanced power distribution and cooling
US5034350A (en) 1987-09-23 1991-07-23 Sgs Thomson Microelectronics S.R.L. Semiconductor device package with dies mounted on both sides of the central pad of a metal frame
US5014115A (en) 1987-11-16 1991-05-07 Motorola, Inc. Coplanar waveguide semiconductor package
US4833568A (en) 1988-01-29 1989-05-23 Berhold G Mark Three-dimensional circuit component assembly and method corresponding thereto
JPH025375A (en) 1988-06-24 1990-01-10 Toshiba Corp Actual fitting of electronic component
US5025306A (en) 1988-08-09 1991-06-18 Texas Instruments Incorporated Assembly of semiconductor chips
US4956694A (en) 1988-11-04 1990-09-11 Dense-Pac Microsystems, Inc. Integrated circuit chip stacking
US4953060A (en) 1989-05-05 1990-08-28 Ncr Corporation Stackable integrated circuit chip package with improved heat removal
US5119269A (en) 1989-08-23 1992-06-02 Seiko Epson Corporation Semiconductor with a battery unit
US5200362A (en) 1989-09-06 1993-04-06 Motorola, Inc. Method of attaching conductive traces to an encapsulated semiconductor die using a removable transfer film
US5041015A (en) 1990-03-30 1991-08-20 Cal Flex, Inc. Electrical jumper assembly
JP2602343B2 (en) 1990-05-07 1997-04-23 三菱電機株式会社 Ic card
US5109318A (en) 1990-05-07 1992-04-28 International Business Machines Corporation Pluggable electronic circuit package assembly with snap together heat sink housing
US5053853A (en) 1990-05-08 1991-10-01 International Business Machines Corporation Modular electronic packaging system
US5261068A (en) 1990-05-25 1993-11-09 Dell Usa L.P. Dual path memory retrieval system for an interleaved dynamic RAM memory unit
US5241456A (en) 1990-07-02 1993-08-31 General Electric Company Compact high density interconnect structure
US5065277A (en) 1990-07-13 1991-11-12 Sun Microsystems, Inc. Three dimensional packaging arrangement for computer systems and the like
US5140405A (en) 1990-08-30 1992-08-18 Micron Technology, Inc. Semiconductor assembly utilizing elastomeric single axis conductive interconnect
US5117282A (en) 1990-10-29 1992-05-26 Harris Corporation Stacked configuration for integrated circuit devices
US5138434A (en) 1991-01-22 1992-08-11 Micron Technology, Inc. Packaging for semiconductor logic devices
US5138430A (en) 1991-06-06 1992-08-11 International Business Machines Corporation High performance versatile thermally enhanced IC chip mounting
US5252857A (en) 1991-08-05 1993-10-12 International Business Machines Corporation Stacked DCA memory chips
US5219377A (en) 1992-01-17 1993-06-15 Texas Instruments Incorporated High temperature co-fired ceramic integrated phased array package
US5241454A (en) 1992-01-22 1993-08-31 International Business Machines Corporation Mutlilayered flexible circuit package
US5224023A (en) 1992-02-10 1993-06-29 Smith Gary W Foldable electronic assembly module
US5208729A (en) 1992-02-14 1993-05-04 International Business Machines Corporation Multi-chip module
US5268815A (en) 1992-02-14 1993-12-07 International Business Machines Corporation High density, high performance memory circuit package
US5222014A (en) 1992-03-02 1993-06-22 Motorola, Inc. Three-dimensional multi-chip pad array carrier
US5229916A (en) 1992-03-04 1993-07-20 International Business Machines Corporation Chip edge interconnect overlay element
US5259770A (en) 1992-03-19 1993-11-09 Amp Incorporated Impedance controlled elastomeric connector
US5438224A (en) 1992-04-23 1995-08-01 Motorola, Inc. Integrated circuit package having a face-to-face IC chip arrangement
US5214845A (en) 1992-05-11 1993-06-01 Micron Technology, Inc. Method for producing high speed integrated circuits
US5247423A (en) 1992-05-26 1993-09-21 Motorola, Inc. Stacking three dimensional leadless multi-chip module and method for making the same
US5229917A (en) 1992-07-24 1993-07-20 The United States Of America As Represented By The Secretary Of The Air Force VLSI integration into a 3-D WSI dual composite module
US5313097A (en) 1992-11-16 1994-05-17 International Business Machines, Corp. High density memory module
US5309986A (en) 1992-11-30 1994-05-10 Satomi Itoh Heat pipe
US5375041A (en) 1992-12-02 1994-12-20 Intel Corporation Ra-tab array bump tab tape based I.C. package
US5347428A (en) 1992-12-03 1994-09-13 Irvine Sensors Corporation Module comprising IC memory stack dedicated to and structurally combined with an IC microprocessor chip
US5428190A (en) 1993-07-02 1995-06-27 Sheldahl, Inc. Rigid-flex board with anisotropic interconnect and method of manufacture
US5386341A (en) 1993-11-01 1995-01-31 Motorola, Inc. Flexible substrate folded in a U-shape with a rigidizer plate located in the notch of the U-shape
US5523619A (en) 1993-11-03 1996-06-04 International Business Machines Corporation High density memory structure
US5477082A (en) 1994-01-11 1995-12-19 Exponential Technology, Inc. Bi-planar multi-chip module
US5541812A (en) 1995-05-22 1996-07-30 Burns; Carmen D. Bus communication system for stacked high density integrated circuit packages having an intermediate lead frame
US5448511A (en) 1994-06-01 1995-09-05 Storage Technology Corporation Memory stack with an integrated interconnect and mounting structure
US5523695A (en) 1994-08-26 1996-06-04 Vlsi Technology, Inc. Universal test socket for exposing the active surface of an integrated circuit in a die-down package
US5739887A (en) * 1994-10-21 1998-04-14 Hitachi, Ltd. Liquid crystal display device with reduced frame portion surrounding display area
US5534356A (en) * 1995-04-26 1996-07-09 Olin Corporation Anodized aluminum substrate having increased breakdown voltage
US5754409A (en) * 1996-11-06 1998-05-19 Dynamem, Inc. Foldable electronic assembly module
JPH10173122A (en) * 1996-12-06 1998-06-26 Mitsubishi Electric Corp Memory module
US6002589A (en) * 1997-07-21 1999-12-14 Rambus Inc. Integrated circuit package for coupling to a printed circuit board
US5949657A (en) * 1997-12-01 1999-09-07 Karabatsos; Chris Bottom or top jumpered foldable electronic assembly
US20040236877A1 (en) * 1997-12-17 2004-11-25 Lee A. Burton Switch/network adapter port incorporating shared memory resources selectively accessible by a direct execution logic element and one or more dense logic devices in a fully buffered dual in-line memory module format (FB-DIMM)
JP3914651B2 (en) * 1999-02-26 2007-05-16 エルピーダメモリ株式会社 Memory module and method of manufacturing the same
US6351029B1 (en) * 1999-05-05 2002-02-26 Harlan R. Isaak Stackable flex circuit chip package and method of making same
US7122889B2 (en) * 2000-05-03 2006-10-17 Rambus, Inc. Semiconductor module
US6449159B1 (en) * 2000-05-03 2002-09-10 Rambus Inc. Semiconductor module with imbedded heat spreader
US7026708B2 (en) * 2001-10-26 2006-04-11 Staktek Group L.P. Low profile chip scale stacking system and method
US6576992B1 (en) * 2001-10-26 2003-06-10 Staktek Group L.P. Chip scale stacking system and method
US7053478B2 (en) * 2001-10-26 2006-05-30 Staktek Group L.P. Pitch change and chip scale stacking system
US6914324B2 (en) * 2001-10-26 2005-07-05 Staktek Group L.P. Memory expansion and chip scale stacking system and method
US6842585B2 (en) * 2002-04-18 2005-01-11 Olympus Optical Co., Ltd. Camera
US6762942B1 (en) * 2002-09-05 2004-07-13 Gary W. Smith Break away, high speed, folded, jumperless electronic assembly
US7542304B2 (en) * 2003-09-15 2009-06-02 Entorian Technologies, Lp Memory expansion and integrated circuit stacking system and method
US7164197B2 (en) * 2003-06-19 2007-01-16 3M Innovative Properties Company Dielectric composite material
US7533218B2 (en) * 2003-11-17 2009-05-12 Sun Microsystems, Inc. Memory system topology
US20060049513A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Thin module system and method with thermal management
US7446410B2 (en) * 2004-09-03 2008-11-04 Entorian Technologies, Lp Circuit module with thermal casing systems
US7542297B2 (en) * 2004-09-03 2009-06-02 Entorian Technologies, Lp Optimized mounting area circuit module system and method
US7606049B2 (en) * 2004-09-03 2009-10-20 Entorian Technologies, Lp Module thermal management system and method
US20060048385A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Minimized profile circuit module systems and methods
US7443023B2 (en) * 2004-09-03 2008-10-28 Entorian Technologies, Lp High capacity thin module system
US7468893B2 (en) * 2004-09-03 2008-12-23 Entorian Technologies, Lp Thin module system and method
US7606040B2 (en) * 2004-09-03 2009-10-20 Entorian Technologies, Lp Memory module system and method
US7760513B2 (en) * 2004-09-03 2010-07-20 Entorian Technologies Lp Modified core for circuit module system and method
US7579687B2 (en) * 2004-09-03 2009-08-25 Entorian Technologies, Lp Circuit module turbulence enhancement systems and methods
US7522421B2 (en) * 2004-09-03 2009-04-21 Entorian Technologies, Lp Split core circuit module
US7423885B2 (en) * 2004-09-03 2008-09-09 Entorian Technologies, Lp Die module system
US7616452B2 (en) * 2004-09-03 2009-11-10 Entorian Technologies, Lp Flex circuit constructions for high capacity circuit module systems and methods
US20060250780A1 (en) * 2005-05-06 2006-11-09 Staktek Group L.P. System component interposer
US20060261449A1 (en) * 2005-05-18 2006-11-23 Staktek Group L.P. Memory module system and method
US7511969B2 (en) * 2006-02-02 2009-03-31 Entorian Technologies, Lp Composite core circuit module system and method
US7289327B2 (en) * 2006-02-27 2007-10-30 Stakick Group L.P. Active cooling methods and apparatus for modules
US7394149B2 (en) * 2006-03-08 2008-07-01 Microelectronics Assembly Technologies, Inc. Thin multichip flex-module
US20070211711A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US7429788B2 (en) * 2006-03-08 2008-09-30 Microelectronics Assembly Technologies, Inc. Thin multichip flex-module
US7393226B2 (en) * 2006-03-08 2008-07-01 Microelectronics Assembly Technologies, Inc. Thin multichip flex-module
US7787254B2 (en) * 2006-03-08 2010-08-31 Microelectronics Assembly Technologies, Inc. Thin multichip flex-module
US7520781B2 (en) * 2006-03-08 2009-04-21 Microelectronics Assembly Technologies Thin multichip flex-module
US20080192428A1 (en) * 2007-02-08 2008-08-14 Clayton James E Thermal management system for computers

Patent Citations (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6180881B2 (en) *
US622739A (en) * 1899-04-11 Pipe-clamp
US6172874B2 (en) * 2001-01-09
US3372310A (en) * 1965-04-30 1968-03-05 Radiation Inc Universal modular packages for integrated circuits
US3436604A (en) * 1966-04-25 1969-04-01 Texas Instruments Inc Complex integrated circuit array and method for fabricating same
US3654394A (en) * 1969-07-08 1972-04-04 Gordon Eng Co Field effect transistor switch, particularly for multiplexing
US3727064A (en) * 1971-03-17 1973-04-10 Monsanto Co Opto-isolator devices and method for the fabrication thereof
US3718842A (en) * 1972-04-21 1973-02-27 Texas Instruments Inc Liquid crystal display mounting structure
US4429349A (en) * 1980-09-30 1984-01-31 Burroughs Corporation Coil connector
US4437235A (en) * 1980-12-29 1984-03-20 Honeywell Information Systems Inc. Integrated circuit package
US4495546A (en) * 1981-05-18 1985-01-22 Matsushita Electric Industrial Co., Ltd. Hybrid integrated circuit component and printed circuit board mounting said component
US4513368A (en) * 1981-05-22 1985-04-23 Data General Corporation Digital data processing system having object-based logical memory addressing and self-structuring modular memory
US4567543A (en) * 1983-02-15 1986-01-28 Motorola, Inc. Double-sided flexible electronic circuit module
US4656605A (en) * 1983-09-02 1987-04-07 Wang Laboratories, Inc. Single in-line memory module
US4727513A (en) * 1983-09-02 1988-02-23 Wang Laboratories, Inc. Signal in-line memory module
US4645944A (en) * 1983-09-05 1987-02-24 Matsushita Electric Industrial Co., Ltd. MOS register for selecting among various data inputs
US4733461A (en) * 1984-12-28 1988-03-29 Micro Co., Ltd. Method of stacking printed circuit boards
US4739589A (en) * 1985-07-12 1988-04-26 Wacker-Chemitronic Gesellschaft Fur Elektronik-Grundstoff Mbh Process and apparatus for abrasive machining of a wafer-like workpiece
US4823234A (en) * 1985-08-16 1989-04-18 Dai-Ichi Seiko Co., Ltd. Semiconductor device and its manufacture
US4724611A (en) * 1985-08-23 1988-02-16 Nec Corporation Method for producing semiconductor module
US4821007A (en) * 1987-02-06 1989-04-11 Tektronix, Inc. Strip line circuit component and method of manufacture
US4982265A (en) * 1987-06-24 1991-01-01 Hitachi, Ltd. Semiconductor integrated circuit device and method of manufacturing the same
US4983533A (en) * 1987-10-28 1991-01-08 Irvine Sensors Corporation High-density electronic modules - process and product
US4985703A (en) * 1988-02-03 1991-01-15 Nec Corporation Analog multiplexer
US4911643A (en) * 1988-10-11 1990-03-27 Beta Phase, Inc. High density and high signal integrity connector
US5276418A (en) * 1988-11-16 1994-01-04 Motorola, Inc. Flexible substrate electronic assembly
US4992849A (en) * 1989-02-15 1991-02-12 Micron Technology, Inc. Directly bonded board multiple integrated circuit module
US4992850A (en) * 1989-02-15 1991-02-12 Micron Technology, Inc. Directly bonded simm module
US5104820A (en) * 1989-07-07 1992-04-14 Irvine Sensors Corporation Method of fabricating electronic circuitry unit containing stacked IC layers having lead rerouting
US5392162A (en) * 1989-10-02 1995-02-21 Glucksman; Dov Z. Illuminated travel make-up mirror
US5191404A (en) * 1989-12-20 1993-03-02 Digital Equipment Corporation High density memory array packaging
US5289062A (en) * 1991-03-18 1994-02-22 Quality Semiconductor, Inc. Fast transmission gate switch
US5099393A (en) * 1991-03-25 1992-03-24 International Business Machines Corporation Electronic package for high density applications
US5714802A (en) * 1991-06-18 1998-02-03 Micron Technology, Inc. High-density electronic module
US5281852A (en) * 1991-12-10 1994-01-25 Normington Peter J C Semiconductor device including stacked die
US5397916A (en) * 1991-12-10 1995-03-14 Normington; Peter J. C. Semiconductor device including stacked die
US5285398A (en) * 1992-05-15 1994-02-08 Mobila Technology Inc. Flexible wearable computer
US5385341A (en) * 1992-07-14 1995-01-31 Konica Corporation Automatic document conveying apparatus
US5729894A (en) * 1992-07-21 1998-03-24 Lsi Logic Corporation Method of assembling ball bump grid array semiconductor packages
US5400003A (en) * 1992-08-19 1995-03-21 Micron Technology, Inc. Inherently impedance matched integrated circuit module
US5394300A (en) * 1992-09-04 1995-02-28 Mitsubishi Denki Kabushiki Kaisha Thin multilayered IC memory card
US5731633A (en) * 1992-09-16 1998-03-24 Gary W. Hamilton Thin multichip module
US5708297A (en) * 1992-09-16 1998-01-13 Clayton; James E. Thin multichip module
US6205654B1 (en) * 1992-12-11 2001-03-27 Staktek Group L.P. Method of manufacturing a surface mount package
US5600178A (en) * 1993-10-08 1997-02-04 Texas Instruments Incorporated Semiconductor package having interdigitated leads
US5502333A (en) * 1994-03-30 1996-03-26 International Business Machines Corporation Semiconductor stack structures and fabrication/sparing methods utilizing programmable spare circuit
US5491612A (en) * 1995-02-21 1996-02-13 Fairchild Space And Defense Corporation Three-dimensional modular assembly of integrated circuits
US5612570A (en) * 1995-04-13 1997-03-18 Dense-Pac Microsystems, Inc. Chip stack and method of making same
US20020001216A1 (en) * 1996-02-26 2002-01-03 Toshio Sugano Semiconductor device and process for manufacturing the same
US6036132A (en) * 1996-03-08 2000-03-14 Iro Ab Air flow disruptor in yarn feeder
US6178093B1 (en) * 1996-06-28 2001-01-23 International Business Machines Corporation Information handling system with circuit assembly having holes filled with filler material
US6841868B2 (en) * 1996-10-08 2005-01-11 Micron Technology, Inc. Memory modules including capacity for additional memory
US6531772B2 (en) * 1996-10-08 2003-03-11 Micron Technology, Inc. Electronic system including memory module with redundant memory capability
US6336262B1 (en) * 1996-10-31 2002-01-08 International Business Machines Corporation Process of forming a capacitor with multi-level interconnection technology
US6208546B1 (en) * 1996-11-12 2001-03-27 Niigata Seimitsu Co., Ltd. Memory module
US6699730B2 (en) * 1996-12-13 2004-03-02 Tessers, Inc. Stacked microelectronic assembly and method therefor
US6034878A (en) * 1996-12-16 2000-03-07 Hitachi, Ltd. Source-clock-synchronized memory system and memory unit
US6358772B2 (en) * 1997-05-02 2002-03-19 Nec Corporation Semiconductor package having semiconductor element mounting structure of semiconductor package mounted on circuit board and method of assembling semiconductor package
US6208521B1 (en) * 1997-05-19 2001-03-27 Nitto Denko Corporation Film carrier and laminate type mounting structure using same
US6014316A (en) * 1997-06-13 2000-01-11 Irvine Sensors Corporation IC stack utilizing BGA contacts
US6028352A (en) * 1997-06-13 2000-02-22 Irvine Sensors Corporation IC stack utilizing secondary leadframes
US6040624A (en) * 1997-10-02 2000-03-21 Motorola, Inc. Semiconductor device package and method
US5869353A (en) * 1997-11-17 1999-02-09 Dense-Pac Microsystems, Inc. Modular panel stacking process
US6021048A (en) * 1998-02-17 2000-02-01 Smith; Gary W. High speed memory module
US6028365A (en) * 1998-03-30 2000-02-22 Micron Technology, Inc. Integrated circuit package and method of fabrication
US6172874B1 (en) * 1998-04-06 2001-01-09 Silicon Graphics, Inc. System for stacking of integrated circuit packages
US6357023B1 (en) * 1998-04-08 2002-03-12 Kingston Technology Co. Connector assembly for testing memory modules from the solder-side of a PC motherboard with forced hot air
US6180881B1 (en) * 1998-05-05 2001-01-30 Harlan Ruben Isaak Chip stack and method of making same
US6187652B1 (en) * 1998-09-14 2001-02-13 Fujitsu Limited Method of fabrication of multiple-layer high density substrate
US6347394B1 (en) * 1998-11-04 2002-02-12 Micron Technology, Inc. Buffering circuit embedded in an integrated circuit device module used for buffering clocks and other input signals
US6343020B1 (en) * 1998-12-28 2002-01-29 Foxconn Precision Components Co., Ltd. Memory module
US6025992A (en) * 1999-02-11 2000-02-15 International Business Machines Corp. Integrated heat exchanger for memory module
US6360433B1 (en) * 1999-04-23 2002-03-26 Andrew C. Ross Universal package and method of forming the same
US6514793B2 (en) * 1999-05-05 2003-02-04 Dpac Technologies Corp. Stackable flex circuit IC package and method of making same
US6839266B1 (en) * 1999-09-14 2005-01-04 Rambus Inc. Memory module with offset data lines and bit line swizzle configuration
US20030045025A1 (en) * 2000-01-26 2003-03-06 Coyle Anthony L. Method of fabricating a molded package for micromechanical devices
US6528870B2 (en) * 2000-01-28 2003-03-04 Kabushiki Kaisha Toshiba Semiconductor device having a plurality of stacked wiring boards
US6677670B2 (en) * 2000-04-25 2004-01-13 Seiko Epson Corporation Semiconductor device
US20020006032A1 (en) * 2000-05-23 2002-01-17 Chris Karabatsos Low-profile registered DIMM
US6683377B1 (en) * 2000-05-30 2004-01-27 Amkor Technology, Inc. Multi-stacked memory package
US20020030995A1 (en) * 2000-08-07 2002-03-14 Masao Shoji Headlight
US6690584B2 (en) * 2000-08-14 2004-02-10 Fujitsu Limited Information-processing device having a crossbar-board connected to back panels on different sides
US6351629B1 (en) * 2000-09-12 2002-02-26 Dieceland Technologies Corp. Compact modular wireless telephone
US6349050B1 (en) * 2000-10-10 2002-02-19 Rambus, Inc. Methods and systems for reducing heat flux in memory systems
US6521984B2 (en) * 2000-11-07 2003-02-18 Mitsubishi Denki Kabushiki Kaisha Semiconductor module with semiconductor devices attached to upper and lower surface of a semiconductor substrate
US6712226B1 (en) * 2001-03-13 2004-03-30 James E. Williams, Jr. Wall or ceiling mountable brackets for storing and displaying board-based recreational equipment
US6850414B2 (en) * 2001-07-02 2005-02-01 Infineon Technologies Ag Electronic printed circuit board having a plurality of identically designed, housing-encapsulated semiconductor memories
US20030002262A1 (en) * 2001-07-02 2003-01-02 Martin Benisek Electronic printed circuit board having a plurality of identically designed, housing-encapsulated semiconductor memories
US20030026155A1 (en) * 2001-08-01 2003-02-06 Mitsubishi Denki Kabushiki Kaisha Semiconductor memory module and register buffer device for use in the same
US20030035328A1 (en) * 2001-08-08 2003-02-20 Mitsubishi Denki Kabushiki Kaisha Semiconductor memory device shiftable to test mode in module as well as semiconductor memory module using the same
US20030049886A1 (en) * 2001-09-07 2003-03-13 Salmon Peter C. Electronic system modules and method of fabrication
US7180167B2 (en) * 2001-10-26 2007-02-20 Staktek Group L. P. Low profile stacking system and method
US6873534B2 (en) * 2002-03-07 2005-03-29 Netlist, Inc. Arrangement of integrated circuits in a memory module
US20040012991A1 (en) * 2002-07-18 2004-01-22 Mitsubishi Denki Kabushiki Kaisha Semiconductor memory module
US20040021211A1 (en) * 2002-08-05 2004-02-05 Tessera, Inc. Microelectronic adaptors, assemblies and methods
US20060020740A1 (en) * 2004-07-22 2006-01-26 International Business Machines Corporation Multi-node architecture with daisy chain communication link configurable to operate in unidirectional and bidirectional modes
US20060053345A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Thin module system and method
US20060050497A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Buffered thin module system and method
US20060050496A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Thin module system and method
US20080030972A1 (en) * 2004-09-03 2008-02-07 Staktek Group L.P. High Capacity Thin Module System and Method
US20080030966A1 (en) * 2004-09-03 2008-02-07 Staktek Group L.P. High Capacity Thin Module System and Method

Cited By (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8345427B2 (en) 2004-04-09 2013-01-01 Netlist, Inc. Module having at least two surfaces and at least one thermally conductive layer therebetween
US20100110642A1 (en) * 2004-04-09 2010-05-06 Netlist, Inc. Module having at least two surfaces and at least one thermally conductive layer therebetween
US20080316712A1 (en) * 2004-04-09 2008-12-25 Pauley Robert S High density module having at least two substrates and at least one thermally conductive layer therebetween
US7839645B2 (en) 2004-04-09 2010-11-23 Netlist, Inc. Module having at least two surfaces and at least one thermally conductive layer therebetween
US20110110047A1 (en) * 2004-04-09 2011-05-12 Netlist, Inc. Module having at least two surfaces and at least one thermally conductive layer therebetween
US7630202B2 (en) 2004-04-09 2009-12-08 Netlist, Inc. High density module having at least two substrates and at least one thermally conductive layer therebetween
US7480152B2 (en) * 2004-09-03 2009-01-20 Entorian Technologies, Lp Thin module system and method
US20090046431A1 (en) * 2004-09-03 2009-02-19 Staktek Group L.P. High Capacity Thin Module System
US20060050496A1 (en) * 2004-09-03 2006-03-09 Staktek Group L.P. Thin module system and method
US20060125067A1 (en) * 2004-09-03 2006-06-15 Staktek Group L.P. Flex circuit constructions for high capacity circuit module systems and methods
US7459784B2 (en) * 2004-09-03 2008-12-02 Entorian Technologies, Lp High capacity thin module system
US7446410B2 (en) * 2004-09-03 2008-11-04 Entorian Technologies, Lp Circuit module with thermal casing systems
US20060090102A1 (en) * 2004-09-03 2006-04-27 Wehrly James D Jr Circuit module with thermal casing systems and methods
US20080094803A1 (en) * 2004-09-03 2008-04-24 Staktek Group L.P. High Capacity Thin Module System and Method
US20100020515A1 (en) * 2005-03-08 2010-01-28 Smart Modular Technologies, Inc. Method and system for manufacturing micro solid state drive devices
US20070126125A1 (en) * 2005-05-18 2007-06-07 Staktek Group L.P. Memory Module System and Method
US7556405B2 (en) * 2005-07-28 2009-07-07 Velcro Industries B.V. Mounting light emitting diodes
US20070025108A1 (en) * 2005-07-28 2007-02-01 Kingsford Howard A Mounting light emitting diodes
US8033836B1 (en) 2005-08-29 2011-10-11 Netlist, Inc. Circuit with flexible portion
US7811097B1 (en) 2005-08-29 2010-10-12 Netlist, Inc. Circuit with flexible portion
US7442050B1 (en) 2005-08-29 2008-10-28 Netlist, Inc. Circuit card with flexible connection for memory module with heat spreader
US8864500B1 (en) 2005-08-29 2014-10-21 Netlist, Inc. Electronic module with flexible portion
US20080225476A1 (en) * 2006-01-11 2008-09-18 Chris Karabatsos Tab wrap foldable electronic assembly module and method of manufacture
US8488325B1 (en) 2006-02-17 2013-07-16 Netlist, Inc. Memory module having thermal conduits
US7839643B1 (en) 2006-02-17 2010-11-23 Netlist, Inc. Heat spreader for memory modules
US7619893B1 (en) 2006-02-17 2009-11-17 Netlist, Inc. Heat spreader for electronic modules
US20070212920A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US7429788B2 (en) * 2006-03-08 2008-09-30 Microelectronics Assembly Technologies, Inc. Thin multichip flex-module
US20070212906A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US7520781B2 (en) * 2006-03-08 2009-04-21 Microelectronics Assembly Technologies Thin multichip flex-module
US7394149B2 (en) * 2006-03-08 2008-07-01 Microelectronics Assembly Technologies, Inc. Thin multichip flex-module
US7787254B2 (en) 2006-03-08 2010-08-31 Microelectronics Assembly Technologies, Inc. Thin multichip flex-module
US7393226B2 (en) * 2006-03-08 2008-07-01 Microelectronics Assembly Technologies, Inc. Thin multichip flex-module
US20070212919A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US20070211426A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US20070212902A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US20070211711A1 (en) * 2006-03-08 2007-09-13 Clayton James E Thin multichip flex-module
US20070247820A1 (en) * 2006-04-24 2007-10-25 Foxconn Technology Co., Ltd. Memory module assembly including heat dissipating members
US20070247819A1 (en) * 2006-04-24 2007-10-25 Foxconn Technology Co., Ltd. Memory module assembly including heat dissipating members
US7252520B1 (en) 2006-04-25 2007-08-07 Tyco Electronics Corporation Flex film card edge connector and cable assembly
US20080002447A1 (en) * 2006-06-29 2008-01-03 Smart Modular Technologies, Inc. Memory supermodule utilizing point to point serial data links
US7715200B2 (en) 2007-09-28 2010-05-11 Samsung Electronics Co., Ltd. Stacked semiconductor module, method of fabricating the same, and electronic system using the same
US20090168362A1 (en) * 2008-01-02 2009-07-02 Clayton James E Thin multi-chip flex module
US20090168374A1 (en) * 2008-01-02 2009-07-02 Clayton James E Thin multi-chip flex module
US20090168363A1 (en) * 2008-01-02 2009-07-02 Clayton James E Thin multi-chip flex module
US7796399B2 (en) 2008-01-02 2010-09-14 Microelectronics Assembly Technologies, Inc. Thin multi-chip flex module
US20090166065A1 (en) * 2008-01-02 2009-07-02 Clayton James E Thin multi-chip flex module
US20110116244A1 (en) * 2008-01-02 2011-05-19 Clayton James E Thin multi-chip flex module
US20110139329A1 (en) * 2008-01-02 2011-06-16 Clayton James E Thin multi-chip flex module
US8559181B2 (en) 2008-01-02 2013-10-15 Microelectronics Assembly Technologies, Inc. Thin multi-chip flex module
US20090168366A1 (en) * 2008-01-02 2009-07-02 Clayton James E Thin multi-chip flex module
US7724530B2 (en) 2008-01-02 2010-05-25 Microelectronics Assembly Technologies, Inc. Thin multi-chip flex module
USRE42252E1 (en) 2008-01-02 2011-03-29 Microelectronics Assembly Technologies, Inc. Thin multi-chip flex module
US8345431B2 (en) 2008-01-02 2013-01-01 Microelectronics Assembly Technologies, Inc. Thin multi-chip flex module
US8440912B1 (en) 2008-04-30 2013-05-14 Velcro Industries B.V. Securing electrical devices
US8018723B1 (en) 2008-04-30 2011-09-13 Netlist, Inc. Heat dissipation for electronic modules
US8705239B1 (en) 2008-04-30 2014-04-22 Netlist, Inc. Heat dissipation for electronic modules
US8061886B1 (en) 2008-04-30 2011-11-22 Velcro Industries B.V. Securing electrical devices
US20110031628A1 (en) * 2009-08-06 2011-02-10 Fujitsu Limited Semiconductor device module and method of manufacturing semiconductor device module
US8588017B2 (en) 2010-10-20 2013-11-19 Samsung Electronics Co., Ltd. Memory circuits, systems, and modules for performing DRAM refresh operations and methods of operating the same
US8834182B2 (en) 2012-10-17 2014-09-16 Microelectronics Assembly Technologies Pierced flexible circuit and compression joint
US8817458B2 (en) 2012-10-17 2014-08-26 Microelectronics Assembly Technologies, Inc. Flexible circuit board and connection system
US8837141B2 (en) 2012-10-17 2014-09-16 Microelectronics Assembly Technologies Electronic module with heat spreading enclosure
US9338895B2 (en) 2012-10-17 2016-05-10 Microelectronics Assembly Technologies Method for making an electrical circuit
US8902606B2 (en) 2012-10-17 2014-12-02 Microelectronics Assembly Technologies Electronic interconnect system
US8899994B2 (en) 2012-10-17 2014-12-02 Microelectronics Assembly Technologies, Inc. Compression connector system
US20140185255A1 (en) * 2013-01-02 2014-07-03 iJet Technologies, Inc. Method to Use Empty Slots in Onboard Aircraft Servers and Communication Devices to Install Non-Proprietary Servers and Communications Interfaces
US9648754B1 (en) 2013-11-12 2017-05-09 Smart Modular Technologies, Inc. Integrated circuit device system with elevated stacked configuration and method of manufacture thereof

Also Published As

Publication number Publication date Type
US7602613B2 (en) 2009-10-13 grant
US20070115017A1 (en) 2007-05-24 application
US20060050496A1 (en) 2006-03-09 application
CN1819185A (en) 2006-08-16 application
US7480152B2 (en) 2009-01-20 grant

Similar Documents

Publication Publication Date Title
US6841855B2 (en) Electronic package having a flexible substrate with ends connected to one another
US6121676A (en) Stacked microelectronic assembly and method therefor
US5412538A (en) Space-saving memory module
US6222739B1 (en) High-density computer module with stacked parallel-plane packaging
US5279029A (en) Ultra high density integrated circuit packages method
US6492718B2 (en) Stacked semiconductor device and semiconductor system
US6762942B1 (en) Break away, high speed, folded, jumperless electronic assembly
US6440770B1 (en) Integrated circuit package
US5208729A (en) Multi-chip module
US7071547B2 (en) Assemblies having stacked semiconductor chips and methods of making same
US6545895B1 (en) High capacity SDRAM memory module with stacked printed circuit boards
US6940158B2 (en) Assemblies having stacked semiconductor chips and methods of making same
US6705877B1 (en) Stackable memory module with variable bandwidth
US6480014B1 (en) High density, high frequency memory chip modules having thermal management structures
US6462408B1 (en) Contact member stacking system and method
US6774478B2 (en) Stacked semiconductor package
US5200917A (en) Stacked printed circuit board device
US6919626B2 (en) High density integrated circuit module
US5557502A (en) Structure of a thermally and electrically enhanced plastic ball grid array package
US5625221A (en) Semiconductor assembly for a three-dimensional integrated circuit package
US7405471B2 (en) Carrier-based electronic module
US7167373B1 (en) Stacking multiple devices using flexible circuit
US7796399B2 (en) Thin multi-chip flex module
US20020089831A1 (en) Module with one side stacked memory
US5053853A (en) Modular electronic packaging system

Legal Events

Date Code Title Description
AS Assignment

Owner name: STAKTEK GROUP L.P., TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GOODWIN, PAUL;CADY, JAMES;WEHRLY, DOUGLAS;REEL/FRAME:016043/0010;SIGNING DATES FROM 20041119 TO 20041129