EP0000384A1 - Disposition de montage de circuits intégrés rapides comportant des capacités de découplage pour les bornes d'alimentation et procédé de réalisation. - Google Patents
Disposition de montage de circuits intégrés rapides comportant des capacités de découplage pour les bornes d'alimentation et procédé de réalisation. Download PDFInfo
- Publication number
- EP0000384A1 EP0000384A1 EP78100332A EP78100332A EP0000384A1 EP 0000384 A1 EP0000384 A1 EP 0000384A1 EP 78100332 A EP78100332 A EP 78100332A EP 78100332 A EP78100332 A EP 78100332A EP 0000384 A1 EP0000384 A1 EP 0000384A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substrate
- holes
- decoupling capacitors
- metal
- layer
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/58—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries
- H01L23/64—Impedance arrangements
- H01L23/642—Capacitive arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/095—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00 with a principal constituent of the material being a combination of two or more materials provided in the groups H01L2924/013 - H01L2924/0715
- H01L2924/097—Glass-ceramics, e.g. devitrified glass
- H01L2924/09701—Low temperature co-fired ceramic [LTCC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/1517—Multilayer substrate
- H01L2924/15172—Fan-out arrangement of the internal vias
- H01L2924/15173—Fan-out arrangement of the internal vias in a single layer of the multilayer substrate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49121—Beam lead frame or beam lead device
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49147—Assembling terminal to base
Definitions
- the invention relates to an arrangement for packing fast-switching monolithically integrated semiconductor circuits, which has decoupling capacitors for the connection points of the power supply of the semiconductor die, and a method for producing the arrangement.
- Monolithically integrated semiconductor circuits have been developed to operate at increasing operating speeds.
- logic circuits have been developed for use in computers.
- the increased frequency of the signals of the monolithically integrated semiconductor circuits has also required comparable improvements in the structure of the arrangement for packaging the monolithically integrated semiconductor circuits.
- the crosstalk resulting from the coupling between circuits adjacent to the signal lines becomes significant when operating very quickly because of the rates of change of the electric and magnetic fields during the transitions. This problem is pronounced when using high-frequency signals.
- Another important problem is the limitation of Voltage fluctuations in the power supply lines of the driver stages, which are often referred to as driver interference voltages. Since the current flowing in the lines of the driver circuit is relatively high, the driver interference voltages are primarily influenced by the inductance of the lines.
- Decoupling capacitors have been proposed to reduce driver interference voltages.
- conventional decoupling capacitors are designed as discrete components and are necessarily at a certain distance from the driver stage and normally require additional transmission lines which increase the inductance, as a result of which the effect of the decoupling capacitors is reduced.
- the structure of an arrangement for packaging the monolithically integrated semiconductor circuits is often the limiting factor which prevents the better operating properties of the semiconductor components from being fully exploited.
- the invention seeks to remedy this.
- the invention as characterized in the claims, achieves the object of providing an arrangement for packing fast-switching monolithically integrated semiconductor circuits which has decoupling capacitors for the connection points of the power supply and in which, due to their structure, those which occur in the power supply lines when the semiconductor components are switched Voltage fluctuations, which represent interference voltages, are reduced.
- the invention solves the problem of specifying a method for producing such an arrangement.
- Fig. 1 is a plan view of a preferred embodiment of the arrangement for packaging monolithically integrated semiconductor circuits without a semiconductor die attached to it.
- the arrangement has a substrate 10 made of ceramic material, which preferably has an expansion coefficient which is very close to that of silicon.
- a large number of solder pads are arranged on the surface in a configuration which corresponds to the configuration of connection pads on the semiconductor die to be soldered.
- the outer rows 12 and 14 of the solder pads are used for connection to the signal input / output connection points on the semiconductor die.
- Conductor tracks 16 and 18 applied to the substrate 10 make electrical contact with the surfaces 12 and 14 for the input / output signals and via pins which extend through the substrate 10 to a connection point (not shown) on the underside.
- connection areas 20 for connection to the connection points for the power supply and the ground potential of the semiconductor die to be fastened on the substrate. In general, these pads are more widely dispersed than that shown in FIG. 1.
- Each of the pads 20 is connected to an underlying via that is in a hole in the substrate 10 and is connected to a connection point on the opposite lower side of the substrate.
- a decoupling capacitor is arranged above the through pin, which lies below the connection area 20, which is explained in more detail in the description below.
- the inventive device for packaging monolithically integrated semiconductor circuits seeks to alleviate three significant problems associated with such devices in general, thereby making the device more compatible with today's very sophisticated semiconductor circuits, particularly those designed to perform logic operations quickly working computers were developed.
- the arrangement according to the invention for packaging monolithically integrated semiconductor circuits can be produced using currently known production methods.
- a first problem in sophisticated structures for packaging monolithically integrated semiconductor circuits is signal delay.
- the operating speed of monolithically highly integrated circuits is largely limited by the transmission delay caused by the arrangement for packaging the circuits. This is because the switching delay of the active Switching elements becomes relatively insignificant with regard to the propagation delay in the arrangement for packing the monolithically highly integrated semiconductor circuits.
- the propagation delay is due in large part to the large dielectric constant of the insulating material between the layers of a conventional arrangement for packaging the monolithically integrated semiconductor circuits.
- the dielectric constant of insulating material is greater than one.
- the dielectric constant of ceramic material is approximately nine. The greater the dielectric constant, the lower the speed of signal propagation. In the arrangement according to the invention, air insulation is partially used for the insulation of the conductor tracks.
- a second problem associated with conventional arrangements for packaging monolithically integrated semiconductor circuits is the crosstalk between the signal lines. The crosstalk between generally parallel signal lines is caused by the inductive and capacitive coupling of the lines.
- a metal plate connected to the reference potential is arranged in the immediate vicinity of the signal lines and above them in order to reduce the capacitive coupling of adjacent lines.
- a third problem that arises with arrangements for packaging monolithically integrated semiconductor circuits is the reduction of the driver interference voltage. This is the voltage change in the driver circuit caused by the inductance of the power supply lines and the other lines. In order to increase the operating speed of a computer system, it is very desirable that many driver switch lengths switch at the same time. The limiting factor for the number of driver stages that are operated simultaneously, the driver interference voltage.
- decoupling capacitors are provided in the immediate vicinity of the connections for the power supply.
- the driver interference voltage V in which n is the number of driver stages switching simultaneously during the time interval dt, L is the inductance and is the change in current over time during switching. The value of is determined by the operating parameters of the monolithically integrated semiconductor circuit and cannot be changed significantly.
- the inductance L is a variable which, if reduced, also reduces the driver interference voltage according to the relationship given above.
- the following relationship is of interest where v is the speed of light, L is inductance and C is capacitance. As the relationship shows, the product C x L is a constant. Therefore, if C is made larger, L becomes smaller, which is desirable. Therefore, the driver interference voltage can be made smaller by increasing the capacity of the power supply lines. This capacitance can be increased by using decoupling capacitors which are assigned to the conductor tracks of the arrangement for packing monolithically integrated semiconductor circuits.
- a substrate 10 is formed from an insulating material, preferably a material that has a coefficient of thermal expansion that substantially corresponds to the coefficient of thermal expansion of silicon. Ceramic and glass ceramic are the usual materials suitable for this purpose.
- the thickness of the substrate 10 is preferably on the order of 0.5 to 1.5 mm.
- Holes 22 are provided, which are preferably conical, as shown. In general, the holes 22 have a diameter of 75 to 150 p at the narrower end and one of 250 to 500 p at the larger end.
- the perforated substrate can be made in any suitable manner.
- a ceramic slurry containing a finely divided ceramic material and a binder can be brought to the desired thickness with a doctor blade.
- the holes are punched or shaped and the sheet of unfired ceramic material obtained is sintered.
- the substrate can be pressed and sintered if desired.
- the holes 22 are formed in the substrate 10 so that their configuration lies under the pads 20 of the semiconductor die which supply the electrical energy to it, as shown in FIG. 1.
- the substrate 10 can be made in any suitable size and can accommodate any suitable number of dies. In general, however, it is difficult to place more than three dies on a substrate if only one metallization level is used.
- the configuration of the holes 22 must be designed before punching and must take into account the substrate shrinkage during sintering. Therefore, the output pattern in the green substrate must be larger than the pattern on the die by the amount the substrate shrinks during sintering. As shown in FIG. 3, the substrate is masked with a photoresist layer 24 on the surface on which the holes have the larger diameter.
- the photoresist is exposed and developed to leave an opening 25 above the holes in which the decoupling capacitors are formed. In general, these openings are below the connections for the power supply and the ground potential of the semiconductor die after it has been applied.
- the layer 24 therefore covers openings 22, which serve as simple through-holes for the signal lines.
- a thin layer 26 of a base metal and a layer 27 within the holes are then deposited on the substrate not covered by the mask 24.
- the deposition of metal can be achieved by vapor deposition, deposition by sputtering or by electroless metal deposition.
- the film that deposits on the surface of photoresist 24 is removed along with that layer.
- the thickness of layers 26 and 27 can be increased by electroplating, if desired. This method is known and will be generally carried out so that the conductive layers 26 and 27 form the cathode in a galvanic bath.
- the reinforced layers 26 and 27 are anodized to form a thin dielectric layer 28, which preferably has a thickness in the range from 0.25 to a few nanometers, as indicated in FIG. 4.
- This dielectric layer 28 is formed by anodizing the metal layer in a suitable solution. The oxide thus formed depends on the nature of the starting layer.
- layers 26 and 27 are made of aluminum, Al203 is formed, if the initial layers are made of titanium, TiO 2 is formed and if they are made of tantalum, Ta 2 O 5 is formed.
- the anodized substrate can then be heated in an oxidizing atmosphere to oxidize the metal that was not well covered by the anodizing process due to the presence of pinholes in the anodized oxide.
- the base metal is copper, a thin oxide layer such as SiO 2 , A1 2 0 3 etc. is deposited on the copper by sputtering or otherwise.
- a mask 30, which has a relatively large thickness in the range from 75 to 150 micrometers, is formed on a surface of the substrate 10.
- the mask 30 can be formed by pre-punching a plastic film which has openings 31 with a larger diameter than the exposed openings of the holes 22.
- the masking film 30 is attached to the surface of the substrate 10 and the openings are filled with an electrically conductive paste which preferably consists of copper with 3 to 6% zinc and / or tin in combination with a suitable carrier.
- the paste can be pressed into the openings 22 and the openings 31 of the mask. If that if desired, the holes 22 may be filled separately before the mask 30 is applied. Alternatively, holes 22 and 31 can be chemically metallized.
- At least one of the holes 22 can be masked prior to anodizing.
- the hole can be masked by forming a layer of photoresist over the opening or by covering it with paraffin. The inner surface of the masked hole is not anodized during anodizing.
- the conductive paste is subsequently introduced, as shown in FIG. 5, the conductive cone 41 thus formed is in direct contact with the conductive layer 27.
- the conductive paste is Cones formed in the holes are separated from the conductive layer 26 by the anodized layer 28, which is made of a dielectric material.
- the structure obtained after the removal of the masking layer 30 is, as indicated in FIG.
- the cone 41 which is in direct contact with the layer 27, forms the ground connection for the layer 26, which connects all the layers 27 of the decoupling capacitors to one another.
- a metallization pattern is formed from the strips 16 and 18 on the opposite side of the substrate 10 and, as is shown in FIG. 1, connects the signal connections of the semiconductor die to be applied to the substrate with the through connections 38, which are not underneath the semiconductor chip.
- This metallization pattern can be formed in any suitable manner are, for example by attaching a perforated masking layer to the surface of the substrate, forming the openings for the metallization strips by cutting with an electron beam and then filling the openings with a conductive paste.
- a metallic cover layer can be applied and a suitable pattern can be produced by subtractive etching, which is known.
- Another alternative method is to deposit a thin metal layer (0.1 nm), form a photoresist window corresponding to the pattern of the signal lines, then electrodeposition in the window, remove the photoresist, and finally dip-etch to remove the initial thin metal coating along the Remove lines and thereby separate them electrically.
- the structure obtained has a series of signal connections 39 and a series of power supply connections 43, to which a decoupling capacitor is assigned, which is arranged in the immediate vicinity of the power supply connections of the semiconductor die.
- FIG. 6A Another structure is shown in FIG. 6A, which was produced in a different way.
- the substrate 10A is provided with cylindrical holes 22A arranged in the same basic configuration that was explained in connection with FIG. 2.
- a masking photoresist layer which is similar to the layer 24 shown in FIG.
- a metal layer 27A is then deposited in the exposed area by any suitable method. This layer 27A need not extend to the through hole walls 22A, although it may be provided if desired.
- coaxial cable pieces 40A are inserted into the through holes for supplying the power supply voltage, the ends 43A of which extend beyond the surface and thereby form connections for fastening on a supporting card or other structure.
- the upper ends of the coaxial cable pieces 40A are stripped of the insulating layer 28A.
- the outer metal layer 26A of the coaxial cable makes electrical contact with layer 27A.
- the insulating layer 28A electrically insulates the coaxial cable piece 40A from its outer metal layer 26A, thereby forming a decoupling capacitor.
- a piece of wire 41A is inserted into the hole 22A and forms the connection 45A of the decoupling capacitors, which is connected to the ground potential.
- Equal pieces 38A are inserted into the signal via holes, thereby forming the Si g nalan whatever 39A.
- the side for receiving the semiconductor die is kept flat, if necessary by grinding.
- a dielectric cover layer 42A is formed over the side intended to receive the semiconductor die and holes are etched into the cover layer where the wire pieces 38A, 41A and 40A are located.
- a multilayer metallic cover layer such as Cr-Cu-Cr is applied by any suitable method and the metallization patterns 16A and 18A and contact areas 20A are produced by conventional subtractive etching.
- This substrate can be processed further in the same manner as that described for the first exemplary embodiment shown in FIG. 6.
- recesses can be formed between the conductor tracks 16 and 18, which reduce the capacitive coupling by increasing the amount of air dielectric.
- the recesses 30 can be cut with an electron beam or with a wet saw and are preferably 25 to 35 micrometers deep. If glass ceramic is used as the substrate 10, the recesses can be formed by etching, the metal surface serving as an etching mask.
- FIG. 7 The cross section of the substrate at this stage of the process is shown in FIG. 7.
- a silicon die 34 with monolithically integrated circuits is soldered onto the solder pads 20 and the pads 12 and 14 of the metallization for the signals.
- the terminals 43, which form part of the driver circuit, and the terminals 39, which form part of the metallization for the signals, are connected to terminals on a suitable circuit card or other carrier.
- a ground plane 50 is provided above it, which is located just above the strip-shaped metallization for the signal lines 16 and 18.
- the ground plane 50 has an opening 51 for receiving the semiconductor die 34 and is provided with spacers 52 made of insulating material which touch the surface of the substrate or the strip-like metallization and thereby maintain a certain distance.
- the spacers 52 made of insulating material can alternatively also be provided on the substrate. 8 shows the substrate 10 with the ground plane 50 arranged above it.
- the ground plane 50 is connected to the ground potential by means of suitable electrical connections.
- a water cooling plate 60 is attached to the module with a preferably serpentine-like water path.
- the water cooling plate 60 may be connected to the ground plane 50 or, alternatively, the ground plane may be an integral part of the water cooling plate.
- the central region of the water cooling plate above the semiconductor plate 34 is fastened to the latter with a highly heat-conducting, electrically insulating paste-like material 62 in order to improve the heat dissipation from the semiconductor plate 34 to the water cooling plate 60.
- the thermally conductive paste-like material conducts the heat from the semiconductor die to the water cooling plate and serves as a buffer for the thermal expansion and contraction of the semiconductor die, thereby avoiding thermal stresses in the semiconductor die 34.
- Inlet 64 and outlet 66 may be any suitable water source for the circulation of the water.
- the space surrounding the die can be easily and effectively sealed by a seal 52 between the flange 50 and the substrate 10 and a second seal 53 between the water cooling plate 60 and the ground plane 50.
- the seals 52 and 53 can be formed from any suitable material, e.g. made of an organic resin material or a low-melting solder.
- Figs. 10-12 shows another preferred embodiment for the ground plane.
- the ground plane 70 is divided into a number of sections.
- insulating layers 72 and 74 are applied to the metal plate 70 forming the substrate, which has a hole 71 which corresponds to the semiconductor die, on the upper and lower main surfaces.
- Metal layers 76 and 78 are deposited over the insulating layers 72 and 74 on the sections.
- a water connection 80 is provided in the space between the quadrants of the metal layer 78 and extends through the dielectric layer 74 to the metal substrate 70.
- Pads 82 are formed on the metal layer 78 in direct electrical contact with it.
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Semiconductor Integrated Circuits (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/815,951 US4153988A (en) | 1977-07-15 | 1977-07-15 | High performance integrated circuit semiconductor package and method of making |
US815951 | 1977-07-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0000384A1 true EP0000384A1 (fr) | 1979-01-24 |
EP0000384B1 EP0000384B1 (fr) | 1981-12-30 |
Family
ID=25219264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP78100332A Expired EP0000384B1 (fr) | 1977-07-15 | 1978-07-07 | Disposition de montage de circuits intégrés rapides comportant des capacités de découplage pour les bornes d'alimentation et procédé de réalisation. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4153988A (fr) |
EP (1) | EP0000384B1 (fr) |
JP (1) | JPS5421170A (fr) |
CA (1) | CA1090002A (fr) |
DE (1) | DE2861463D1 (fr) |
IT (1) | IT1109828B (fr) |
Cited By (6)
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EP0083405A2 (fr) * | 1981-12-31 | 1983-07-13 | International Business Machines Corporation | Support de puce pour circuits intégrés à grande échelle et un procédé pour la fabrication du support |
EP0483946A1 (fr) * | 1990-10-30 | 1992-05-06 | Chomerics, Inc. | Cache résistant à de hautes températures |
EP0573838A2 (fr) * | 1992-06-10 | 1993-12-15 | Siemens Aktiengesellschaft | Module à plusieurs puces |
EP1001464A1 (fr) * | 1998-11-09 | 2000-05-17 | Robert Bosch Gmbh | Circuit intégré monolithique comprenant une pluralité de condensateurs |
DE102014004660A1 (de) | 2014-02-10 | 2015-08-13 | Joachim Kümmel | Verfahren zur Verbrennung von Abfall und Biomassen auf einem luftgekühlten Rost sowie Vorrichtung zur Durchführung des Verfahrens |
DE102014008858A1 (de) | 2014-06-16 | 2015-12-17 | Joachim Kümmel | Verfahren zur Verbrennung von Abfall und Biomassen auf einem Flossenwand-Stufenrost sowie Vorrichtung zur Durchführung des Verfahrens |
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US4945399A (en) * | 1986-09-30 | 1990-07-31 | International Business Machines Corporation | Electronic package with integrated distributed decoupling capacitors |
US4744008A (en) * | 1986-11-18 | 1988-05-10 | International Business Machines Corporation | Flexible film chip carrier with decoupling capacitors |
US4842699A (en) * | 1988-05-10 | 1989-06-27 | Avantek, Inc. | Method of selective via-hole and heat sink plating using a metal mask |
US4808273A (en) * | 1988-05-10 | 1989-02-28 | Avantek, Inc. | Method of forming completely metallized via holes in semiconductors |
US4978639A (en) * | 1989-01-10 | 1990-12-18 | Avantek, Inc. | Method for the simultaneous formation of via-holes and wraparound plating on semiconductor chips |
US5120572A (en) * | 1990-10-30 | 1992-06-09 | Microelectronics And Computer Technology Corporation | Method of fabricating electrical components in high density substrates |
US5254493A (en) * | 1990-10-30 | 1993-10-19 | Microelectronics And Computer Technology Corporation | Method of fabricating integrated resistors in high density substrates |
JP2766920B2 (ja) * | 1992-01-07 | 1998-06-18 | 三菱電機株式会社 | Icパッケージ及びその実装方法 |
US5404265A (en) * | 1992-08-28 | 1995-04-04 | Fujitsu Limited | Interconnect capacitors |
US5351163A (en) * | 1992-12-30 | 1994-09-27 | Westinghouse Electric Corporation | High Q monolithic MIM capacitor |
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US7081650B2 (en) * | 2003-03-31 | 2006-07-25 | Intel Corporation | Interposer with signal and power supply through vias |
US7652896B2 (en) * | 2004-12-29 | 2010-01-26 | Hewlett-Packard Development Company, L.P. | Component for impedance matching |
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US8097946B2 (en) * | 2007-10-31 | 2012-01-17 | Sanyo Electric Co., Ltd. | Device mounting board, semiconductor module, and mobile device |
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US10999917B2 (en) * | 2018-09-20 | 2021-05-04 | Apple Inc. | Sparse laser etch anodized surface for cosmetic grounding |
TW202119877A (zh) * | 2019-11-05 | 2021-05-16 | 南韓商普因特工程有限公司 | 多層配線基板及包括其的探針卡 |
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DE1816808A1 (de) * | 1967-12-26 | 1969-09-11 | Corning Glass Works | Gedruckte Schaltung |
GB1249108A (en) * | 1967-10-02 | 1971-10-06 | Electrosil Ltd | Electric circuit assemblies |
DE2523913A1 (de) * | 1975-05-30 | 1976-12-02 | Siemens Ag | Stromversorgungsnetzwerk fuer flachbaugruppen mit schnellschaltenden bauelementen |
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US3049647A (en) * | 1958-09-02 | 1962-08-14 | Sylvania Electric Prod | Electrical chassis |
US3191098A (en) * | 1960-05-26 | 1965-06-22 | Lockheed Aircraft Corp | Structurally integrated capacitor assembly |
US3351816A (en) * | 1965-02-04 | 1967-11-07 | Bunker Ramo | Planar coaxial circuitry |
DE1765507A1 (de) * | 1968-05-30 | 1971-09-30 | Siemens Ag | Steckvorrichtung mit kurzen Signalweglaengen |
US3530411A (en) * | 1969-02-10 | 1970-09-22 | Bunker Ramo | High frequency electronic circuit structure employing planar transmission lines |
JPS547196B2 (fr) * | 1971-08-26 | 1979-04-04 | ||
US3922479A (en) * | 1971-09-15 | 1975-11-25 | Bunker Ramo | Coaxial circuit construction and method of making |
DE2238594A1 (de) * | 1972-08-05 | 1974-02-21 | Stettner & Co | Keramischer mehrfach-durchfuehrungskondensator |
US4034469A (en) * | 1976-09-03 | 1977-07-12 | Ibm Corporation | Method of making conduction-cooled circuit package |
-
1977
- 1977-07-15 US US05/815,951 patent/US4153988A/en not_active Expired - Lifetime
-
1978
- 1978-06-15 CA CA305,588A patent/CA1090002A/fr not_active Expired
- 1978-06-23 IT IT24893/78A patent/IT1109828B/it active
- 1978-06-26 JP JP7660878A patent/JPS5421170A/ja active Granted
- 1978-07-07 EP EP78100332A patent/EP0000384B1/fr not_active Expired
- 1978-07-07 DE DE7878100332T patent/DE2861463D1/de not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1249108A (en) * | 1967-10-02 | 1971-10-06 | Electrosil Ltd | Electric circuit assemblies |
DE1816808A1 (de) * | 1967-12-26 | 1969-09-11 | Corning Glass Works | Gedruckte Schaltung |
DE2523913A1 (de) * | 1975-05-30 | 1976-12-02 | Siemens Ag | Stromversorgungsnetzwerk fuer flachbaugruppen mit schnellschaltenden bauelementen |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0083405A2 (fr) * | 1981-12-31 | 1983-07-13 | International Business Machines Corporation | Support de puce pour circuits intégrés à grande échelle et un procédé pour la fabrication du support |
EP0083405A3 (en) * | 1981-12-31 | 1985-05-15 | International Business Machines Corporation | Chip carrier for large scale integrated circuits and a method for the fabrication of the carrier |
EP0483946A1 (fr) * | 1990-10-30 | 1992-05-06 | Chomerics, Inc. | Cache résistant à de hautes températures |
EP0573838A2 (fr) * | 1992-06-10 | 1993-12-15 | Siemens Aktiengesellschaft | Module à plusieurs puces |
EP0573838A3 (fr) * | 1992-06-10 | 1994-08-31 | Siemens Ag | |
EP1001464A1 (fr) * | 1998-11-09 | 2000-05-17 | Robert Bosch Gmbh | Circuit intégré monolithique comprenant une pluralité de condensateurs |
US6469331B2 (en) | 1998-11-09 | 2002-10-22 | Robert Bosch Gmbh | Monolithic integrated circuit with several capacitors forming bypass to ground |
DE102014004660A1 (de) | 2014-02-10 | 2015-08-13 | Joachim Kümmel | Verfahren zur Verbrennung von Abfall und Biomassen auf einem luftgekühlten Rost sowie Vorrichtung zur Durchführung des Verfahrens |
DE102014008858A1 (de) | 2014-06-16 | 2015-12-17 | Joachim Kümmel | Verfahren zur Verbrennung von Abfall und Biomassen auf einem Flossenwand-Stufenrost sowie Vorrichtung zur Durchführung des Verfahrens |
Also Published As
Publication number | Publication date |
---|---|
JPS5710577B2 (fr) | 1982-02-26 |
EP0000384B1 (fr) | 1981-12-30 |
IT7824893A0 (it) | 1978-06-23 |
IT1109828B (it) | 1985-12-23 |
US4153988A (en) | 1979-05-15 |
CA1090002A (fr) | 1980-11-18 |
DE2861463D1 (en) | 1982-02-18 |
JPS5421170A (en) | 1979-02-17 |
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