WO2004064152A2 - Modular aufgebautes bauelement mit verkapselung - Google Patents
Modular aufgebautes bauelement mit verkapselung Download PDFInfo
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- WO2004064152A2 WO2004064152A2 PCT/EP2004/000150 EP2004000150W WO2004064152A2 WO 2004064152 A2 WO2004064152 A2 WO 2004064152A2 EP 2004000150 W EP2004000150 W EP 2004000150W WO 2004064152 A2 WO2004064152 A2 WO 2004064152A2
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- component
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- film cover
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/10—Mounting in enclosures
- H03H9/1064—Mounting in enclosures for surface acoustic wave [SAW] devices
- H03H9/1078—Mounting in enclosures for surface acoustic wave [SAW] devices the enclosure being defined by a foil covering the non-active sides of the SAW device
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/0538—Constructional combinations of supports or holders with electromechanical or other electronic elements
- H03H9/0547—Constructional combinations of supports or holders with electromechanical or other electronic elements consisting of a vertical arrangement
- H03H9/0557—Constructional combinations of supports or holders with electromechanical or other electronic elements consisting of a vertical arrangement the other elements being buried in the substrate
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/10—Mounting in enclosures
- H03H9/1064—Mounting in enclosures for surface acoustic wave [SAW] devices
- H03H9/1071—Mounting in enclosures for surface acoustic wave [SAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the SAW device
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/10—Mounting in enclosures
- H03H9/1064—Mounting in enclosures for surface acoustic wave [SAW] devices
- H03H9/1085—Mounting in enclosures for surface acoustic wave [SAW] devices the enclosure being defined by a non-uniform sealing mass covering the non-active sides of the SAW device
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W42/00—Arrangements for protection of devices
- H10W42/121—Arrangements for protection of devices protecting against mechanical damage
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W42/00—Arrangements for protection of devices
- H10W42/20—Arrangements for protection of devices protecting against electromagnetic or particle radiation, e.g. light, X-rays, gamma-rays or electrons
- H10W42/261—Arrangements for protection of devices protecting against electromagnetic or particle radiation, e.g. light, X-rays, gamma-rays or electrons characterised by their shapes or dispositions
- H10W42/276—Arrangements for protection of devices protecting against electromagnetic or particle radiation, e.g. light, X-rays, gamma-rays or electrons characterised by their shapes or dispositions the arrangements being on an external surface of the package, e.g. on the outer surface of an encapsulation
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
- H10W74/111—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed
- H10W74/121—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed by multiple encapsulations, e.g. by a thin protective coating and a thick encapsulation
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
- H10W74/111—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed
- H10W74/124—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed the encapsulations having cavities other than that occupied by chips
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/60—Insulating or insulated package substrates; Interposers; Redistribution layers
- H10W70/62—Insulating or insulated package substrates; Interposers; Redistribution layers characterised by their interconnections
- H10W70/63—Vias, e.g. via plugs
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/60—Insulating or insulated package substrates; Interposers; Redistribution layers
- H10W70/62—Insulating or insulated package substrates; Interposers; Redistribution layers characterised by their interconnections
- H10W70/65—Shapes or dispositions of interconnections
- H10W70/654—Top-view layouts
- H10W70/655—Fan-out layouts
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/072—Connecting or disconnecting of bump connectors
- H10W72/07231—Techniques
- H10W72/07232—Compression bonding, e.g. thermocompression bonding
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/072—Connecting or disconnecting of bump connectors
- H10W72/07231—Techniques
- H10W72/07232—Compression bonding, e.g. thermocompression bonding
- H10W72/07233—Ultrasonic bonding, e.g. thermosonic bonding
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/072—Connecting or disconnecting of bump connectors
- H10W72/07231—Techniques
- H10W72/07236—Soldering or alloying
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/072—Connecting or disconnecting of bump connectors
- H10W72/07251—Connecting or disconnecting of bump connectors characterised by changes in properties of the bump connectors during connecting
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/20—Bump connectors, e.g. solder bumps or copper pillars; Dummy bumps; Thermal bumps
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/551—Materials of bond wires
- H10W72/552—Materials of bond wires comprising metals or metalloids, e.g. silver
- H10W72/5522—Materials of bond wires comprising metals or metalloids, e.g. silver comprising gold [Au]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/551—Materials of bond wires
- H10W72/552—Materials of bond wires comprising metals or metalloids, e.g. silver
- H10W72/5524—Materials of bond wires comprising metals or metalloids, e.g. silver comprising aluminium [Al]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/851—Dispositions of multiple connectors or interconnections
- H10W72/874—On different surfaces
- H10W72/884—Die-attach connectors and bond wires
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/90—Bond pads, in general
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/90—Bond pads, in general
- H10W72/941—Dispositions of bond pads
- H10W72/9415—Dispositions of bond pads relative to the surface, e.g. recessed, protruding
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
- H10W74/111—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed
- H10W74/114—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed by a substrate and the encapsulations
- H10W74/117—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed by a substrate and the encapsulations the substrate having spherical bumps for external connection
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/721—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bump connectors
- H10W90/724—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bump connectors between a chip and a stacked insulating package substrate, interposer or RDL
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/751—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires
- H10W90/754—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires between a chip and a stacked insulating package substrate, interposer or RDL
Definitions
- the invention relates in particular to a high frequency module, for example a microwave or millimeter wave module, as well as housing technology of such components.
- the frequency range between 1 GHz and 30 GHz is called the microwave range (MW range).
- the frequency range from 30 GHz upwards is called the millimeter wave range (mmW range).
- the high-frequency modules differ from the high-frequency modules in particular in that “waveguides”, for example microstrip lines and coplanar lines, are generally used for high-frequency circuits from 5 GHz.
- High-frequency modules are integrated electronic components that fulfill various functionalities for applications to be used in the frequency range from 1 to 100 GHz.
- Such components can generally be used in data transmission systems, e.g. B. in television satellite reception, in wireless local data networks - LAN (Local Area Network), WLAN (Wireless LAN), Bluetooth, optical modules such as multiplexers, modulators and transmitter / receiver units - and in radar, for example automotive radar at 24 GHZ and 77 GHz, and in front-end modules for broadband communication, e.g. B. LMDS (Local Multimedia Distribution System) and directional radio systems for base stations can be used.
- data transmission systems e.g. B. in television satellite reception, in wireless local data networks - LAN (Local Area Network), WLAN (Wireless LAN), Bluetooth, optical modules such as multiplexers, modulators and transmitter / receiver units - and in radar, for example automotive radar at 24 GHZ and 77 GHz, and in front-end modules for broadband communication, e.g. B
- modules to be used in the millimeter wave range are mostly manufactured on the basis of thin-film substrates.
- the thin-film substrate can simultaneously carry one or more chip components.
- the chip components are attached to the carrier substrate by means of wire bonding or flip-chip
- microwave or millimeter modules which contain a ceramic substrate on which microwave or. Millimeter-wave chips are unhoused.
- the substrate is placed together with the chip components in a metal or ceramic housing and electrically connected to external circuits by means of high-frequency bushings.
- This technology requires very complex housing designs. Such modules are heavy and take up a lot of space.
- SMD Surface Mounted Device
- substrate-integrated housings Another alternative is so-called substrate-integrated housings. With these, the substrate takes over the tasks of the housing.
- the housing then consists of the substrate, side walls (on the substrate) and a cover on the side walls. There are both forms in which the side walls are first connected to the substrate and after the construction of the circuit (application of the components) z.
- This technique has the disadvantage that the external dimensions of the module are predetermined by the geometry of the prefabricated housing.
- the chip is additionally cast with a potting compound (e.g. Globtop).
- a potting compound e.g. Globtop
- flip-chip technology whereby the assembled chip can be mechanically stabilized and sealed with a sealing compound (underfiller / globtop).
- SAW chips are encapsulated with the aid of a protective film, this protective film covering the SAW chip from the rear (EP 1093159A). So far, these concepts have only been used in SAW housing technology.
- the disadvantage of SAW components is that they are technologically related
- the object of the present invention is to provide a microwave or millimeter wave module with active individual components, which has both electrical connections between different module components and also the protection of the module components, in particular the high-frequency components of the component from external influences such as dust, mechanical damage and Moisture is guaranteed without attenuating the maximum frequency signals.
- the invention gives a maximum frequency range
- a substrate with at least two dielectric layers, with at least one integrated (in particular passive)
- Circuit element with at least one conductive structure on the upper side and at least one external contact on the lower side, at least one active individual component arranged on the upper side of the substrate, at least one film cover which completely covers the at least one active individual component and serves to cover the at least one individual component Protect dust, moisture and mechanical influences.
- the film cover closes tightly with the top of the substrate.
- the film cover is used in particular to protect the high-frequency signal-carrying parts of the individual component from dust, moisture and mechanical influences.
- the film cover, the individual component and the substrate together form a closed cavity.
- all electrical connections - e.g. B. bumps or the bond wires - are arranged between the chip and the substrate in this cavity and do not touch the film cover.
- all the structures of the module according to the invention which carry the highest frequency signals and which lie on the top of the substrate and on the top or bottom of the individual component are preferably arranged in the closed cavity and thus protected from material stress and external influences.
- one side of the individual component has at least one exposed active maximum frequency structure.
- the exposed active high-frequency structure is arranged in the cavity and does not touch the film cover.
- the interface between the substrate and the chip in a modular component, in particular a component operating in the ultra-high frequency range, is susceptible to undesired signal attenuation, since the transmission properties of exposed signal connections are impaired by contamination or contact with an encapsulation compound.
- the arrangement according to the invention of the high-frequency signal-guiding, exposed structures (active circuit components, electrical connections) of a module in a cavity has the advantage that the electromagnetic wave of the signal is not caused by unwanted contact, for. B. is dampened with a sealing compound.
- the component according to the invention is therefore characterized by a particularly low insertion loss.
- a passive circuit element means in particular an inductance, a capacitance, a line, e.g. B. a connecting line, or a line section.
- This can be arranged in a manner known per se as interconnects between, in and on the dielectric layers of a substrate with a multilayer structure and thus form integrated circuit elements.
- Vertical connections between the conductor tracks in different positions (vias) also belong to integrated circuit elements, since on the one hand they serve for vertical signal routing and on the other hand they represent both a (parasitic) inductance and a (parasitic) capacitance, especially at maximum frequencies.
- Individual integrated circuit elements together form integrated circuits, in particular passive circuits such as that of a filter or a mixer.
- Integrated circuit elements can also implement at least a part of at least one active circuit which is electrically connected to active individual components on the surface of the substrate.
- capacitors and inductors are often present as distributed elements realized by line sections.
- the capacities can be designed as radial stubs.
- An active individual component is understood to mean a discrete non-linear or active circuit element such as a diode or a transistor, or at least an active one
- Component-comprising chip component without or with a housing Component-comprising chip component without or with a housing.
- the active individual components can for example on the
- the active individual component has external contacts for the electrical connection to the circuit elements integrated in the substrate.
- the upper side of the substrate carries at least one conductive structure which, in particular, has a contact for establishing an electrical connection between the integrated circuit elements in the substrate and the at least one active individual component on the upper side of the substrate, a connecting line between active individual components or part of a large part circuit integrated in the substrate.
- the underside of the substrate has external contacts for electrical connection, for example to the printed circuit board of a terminal.
- the at least one active individual component in particular an MMIC component, which comprises, for example, a frequency divider, frequency multiplier, amplifier, oscillator or mixer circuit, is preferably connected to the substrate in the maximum frequency range relevant to the invention by means of flip-chip technology and mechanically or electrically connected to the integrated circuit elements so that their side carrying the active high-frequency component (the structured side) faces the upper side of the substrate.
- MMIC component which comprises, for example, a frequency divider, frequency multiplier, amplifier, oscillator or mixer circuit
- one or more discrete components e.g. a coil, a capacitor or a resistor
- one or more carrier substrates with passive RF structures such as filters or mixers, in particular carrier substrates structured using thin-film technology, can be used the top of the substrate.
- the film cover represents a film whose shape is (or will be) adapted to that of the components to be protected (or to be covered).
- the film cover lies over the back of the active individual component and closes on all sides with the surface of the substrate that the active individual component is completely covered and thus protected from external mechanical influences, dust and moisture.
- a plurality of active high-frequency individual components and at least one high-frequency individual component can be encapsulated individually or together with at least one other digital or low-frequency individual component.
- the film cover preferably covers all of the individual components located on the upper side of the substrate.
- a component encapsulated according to the invention is distinguished from the prior art by low electrical losses in the highest frequency range, in particular millimeter wave range, caused by housing technology.
- the encapsulation with the aid of a deformable film has the advantage that the external dimensions of the high-frequency module according to the invention are mainly determined by the dimensions of the individual components arranged on the top of the substrate and by the thickness of the film cover.
- the advantageous encapsulation also ensures the high quality of the high-frequency components in terms of their reliability and transmission characteristics.
- electrical connections of the individual components are provided in the components according to the invention not only to one another, but also to external RF, low-frequency and power supply circuits.
- FIG. 1 shows a component according to the invention in a schematic cross section
- FIGS. 2 and 3 show advantageous embodiments of the component according to the invention in a schematic
- FIG. 1 explains general features of the invention on the basis of a schematic cross-sectional representation of a component according to the invention.
- FIG. 1 shows the schematic cross section of a component BE according to the invention with two active individual components CB and a multi-layer substrate SU.
- the active individual components CB here are chip components which comprise at least one active circuit element (an active maximum frequency structure HS, in particular a diode or a transistor), this active maximum frequency structure HS being arranged on one side of the individual component CB and lies open.
- the maximum frequency structure HS is arranged in a closed cavity which is formed by the substrate SU, the individual component CB and the film cover SF.
- the maximum frequency structure HS is arranged on the underside of the individual component CB and faces the substrate top.
- the active individual component CB is electrically connected by means of bumps BU to integrated circuit elements IE hidden in the multilayer substrate SU (flip-chip technology).
- the substrate SU has conductor structures for producing the aforementioned electrical contact on the upper side and external contacts AK on the lower side for establishing an electrical connection with the printed circuit board of a terminal.
- the external contacts AK can be designed as land grid arrays (LGA) or additionally with solder balls AK1 ( ⁇ BGA, or ball
- the vertical signal is carried out in the substrate SU by means of plated-through holes DK.
- a component according to the invention is preferably of modular construction and has a plurality of individual components CB, which are arranged on the same substrate SU and are all completely covered with a common film cover, the film cover preferably encapsulating each individual component individually, so that each individual component is assigned its own cavity , However, it is also possible for the film cover to form only one cavity in which several or all of the individual components of the module are arranged.
- both active individual components CB are covered with a film SF (film cover). Covering the individual components with the film is called lamination. The film is permanently deformed during lamination.
- Film cover is preferably made of a polymer which has a particularly low water absorption, e.g. B. fluorine-based polymers such as polytetrafluoroethylene (PTFE) or polyolefins such as (cross-linked) polypropylene or polyethylene.
- PTFE polytetrafluoroethylene
- the film cover can also be made of a metal and filled with fibers or particles.
- the film cover can also be or can be coated with metal or ceramic, as shown in the figure.
- the film cover is additionally coated with a metal layer ME.
- This layer can be applied, for example, by electroplating, chemical metal deposition, vapor deposition or by a combination of the methods mentioned.
- the individual components located on the upper side of the substrate are covered in this exemplary embodiment with a casting compound GT.
- the sealing compound omit.
- Potting compound is understood here to mean all substances which are applied to the film in the liquid state and solidify through hardening (chemical reaction) or solidification (cooling). This includes both filled and unfilled polymers, such as masking compounds, glob-top compounds, thermoplastics or plastic adhesives, as well as metals or ceramic materials, such as ceramic adhesives.
- Glob-Top is a potting compound that only flows slightly due to its high viscosity and therefore surrounds the individual component to be protected in a drop shape.
- the metal-coated film is coated with a casting compound after lamination.
- the film is partially removed at the edges lying against the substrate - for example by laser - and only then coated with metal so that the individual components to be covered are completely surrounded by metal or ceramic and thus hermetically sealed are.
- the film cover forms, together with the substrate SU and the individual component CB, a closed cavity in which the parts of the individual component which carry the highest frequency signal, in particular the electrical connections and the exposed active maximum frequency structures, are arranged.
- the film cover does not touch the electrical connections or the signal-carrying high-frequency connections (bumps) between the chip and the substrate.
- the maximum frequency connections are thus protected by the film cover in such a way that the electromagnetic wave (ie the maximum frequency signal) e.g. B. is not influenced by environmental influences or a stabilizing casting compound.
- substrate is also understood to mean so-called molded interconnection devices (MID), which consist of thermoplastic polymers on which conductor tracks are structured.
- MID molded interconnection devices
- the bumps BU serve to establish an electrical connection between the integrated circuit elements IE hidden in the substrate SU and the at least one active individual component CB and possibly the further individual components arranged on the upper side of the substrate.
- the bumps usually consist of solder, for example SnPb, SnAu, SnAg, SnCu, SnPbAg, SnAgCu in different concentrations, or of gold. If the bump consists of solder, the component is connected to the substrate by soldering; if it is made of gold, the individual components CB and substrate SU can be thermocompression bonding, ultrasonic bonding or thermosonic
- the height of the flip-chip bumps must be kept so low in the high-frequency applications that only a small amount of the electromagnetic radiation emerging from the high-frequency individual component can be absorbed by the laminated film.
- One way to To achieve the high level of flip-chip bumps is offered in particular by thermocompression bonding.
- the active individual components can be SMD components.
- passive individual components in particular discrete coils, capacitors, resistors or individual chips with passive circuits (for example filters, mixers, matching circuits) on the top of the substrate. It is possible to compensate for the detuning of the component by the housing with additional discrete passive compensation structures.
- the passive individual components and the integrated circuit components can form at least part of the following circuits: a high-frequency switch, a matching circuit, an antenna, an antenna switch, a diode switch, a high-pass filter, a low-pass filter, a band-pass filter, a band-stop filter, a power amplifier, one Diplexers, a duplexer, a coupler, a directional coupler, a memory element, a balun or a mixer.
- the function of the integrated circuit elements, u. a. of the plated-through holes and connecting lines can also be limited exclusively to the electrical signal feedthrough.
- the passive individual components can be electrically and mechanically connected to the substrate, for example in flip-chip technology, in die & wire bond technology (see, for example, FIG. 2) or in SMD technology.
- the individual component In order that the bond wires BD in Die & Wire-Bond technology do not come into contact with the film cover, the individual component have a rigid protective cap SK, see FIG. 2.
- the individual component is attached to the substrate SU with an adhesive compound or solder KL.
- the bond wires can also consist of metal strips (ribbon bonds).
- the maximum frequency structure HS is arranged in this variant of the invention on the top of the individual component CB and facing away from the substrate SU.
- the component according to the invention can also contain at least one further individual component, not shown here.
- the - preferably dimensionally stable - film cover allows several individual components to be encapsulated in a common cavity.
- a dimensionally stable film cover is structured in such a way that it has a plurality of cap-shaped regions, each of which provides its own closed cavity for an individual component and closes tightly with the substrate, so that each
- FIG. 3 shows a further advantageous embodiment of the invention.
- the film is relieved of pressure at the point at which the film covers the individual component to be protected, for example by placing a protective cap on it or by deformed cavities in the film above the individual component mentioned.
- the film does not run tightly over the individual component, but lies loosely over it, so that sensitive or deformable parts of the individual component need not be protected.
- the active individual component has no signal-carrying structures to be protected on the surface (for example, all circuit elements and circuits are hidden in a multilayer substrate), it is possible to do so First coat individual components with the potting compound and only apply a film cover after the potting compound has hardened.
- the signal lines in the component according to the invention can either be completely hidden in the substrate, or at least some of the signal lines can be arranged on the top of the substrate.
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Transceivers (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/541,911 US20060103003A1 (en) | 2003-01-13 | 2004-01-12 | Modular construction component with encapsulation |
| JP2006500549A JP4603527B2 (ja) | 2003-01-13 | 2004-01-12 | カプセルを有するモジュール構造の部品 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10300958.2 | 2003-01-13 | ||
| DE10300958A DE10300958A1 (de) | 2003-01-13 | 2003-01-13 | Modul mit Verkapselung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2004064152A2 true WO2004064152A2 (de) | 2004-07-29 |
| WO2004064152A3 WO2004064152A3 (de) | 2005-09-09 |
Family
ID=32519890
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/014346 Ceased WO2004064140A1 (de) | 2003-01-13 | 2003-12-16 | Modul mit verkapselung |
| PCT/EP2004/000150 Ceased WO2004064152A2 (de) | 2003-01-13 | 2004-01-12 | Modular aufgebautes bauelement mit verkapselung |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/014346 Ceased WO2004064140A1 (de) | 2003-01-13 | 2003-12-16 | Modul mit verkapselung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060103003A1 (de) |
| JP (1) | JP4603527B2 (de) |
| DE (1) | DE10300958A1 (de) |
| FR (1) | FR2849956B1 (de) |
| WO (2) | WO2004064140A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009539235A (ja) * | 2006-05-30 | 2009-11-12 | エプコス アクチエンゲゼルシャフト | フリップチップ素子及びその製造方法 |
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| JP2006245098A (ja) * | 2005-03-01 | 2006-09-14 | Seiko Epson Corp | 電子部品及びその製造方法、並びに電子機器 |
| US7466143B2 (en) * | 2005-09-16 | 2008-12-16 | General Electric Company | Clearance measurement systems and methods of operation |
| US7404331B2 (en) * | 2006-09-27 | 2008-07-29 | General Electric Company | Sensor assembly, transformers and methods of manufacture |
| JP2008251608A (ja) * | 2007-03-29 | 2008-10-16 | Casio Comput Co Ltd | 半導体装置およびその製造方法 |
| US8177474B2 (en) * | 2007-06-26 | 2012-05-15 | General Electric Company | System and method for turbine engine clearance control with rub detection |
| JP5823219B2 (ja) * | 2011-09-08 | 2015-11-25 | 太陽誘電株式会社 | 電子部品 |
| WO2015135588A1 (en) | 2014-03-14 | 2015-09-17 | Epcos Ag | Front-end module for carrier aggregation mode |
| US9488719B2 (en) * | 2014-05-30 | 2016-11-08 | Toyota Motor Engineering & Manufacturing North America, Inc. | Automotive radar sub-system packaging for robustness |
| DE102014115099B4 (de) * | 2014-10-16 | 2021-05-06 | Infineon Technologies Ag | Elektronisches Modul mit elektrisch isolierender Struktur mit Material mit niedrigem Elastizitätsmodul und Verfahren zur Herstellung eines elektronischen Moduls |
| DE102015103149B4 (de) * | 2015-03-04 | 2024-06-06 | HELLA GmbH & Co. KGaA | Radarvorrichtung |
| DE102016102742A1 (de) * | 2016-02-17 | 2017-08-17 | Snaptrack, Inc. | HF-Frontend für ein Automobilradarsystem |
| US11244909B2 (en) * | 2020-03-12 | 2022-02-08 | Advanced Semiconductor Engineering, Inc. | Package structure and method for manufacturing the same |
| US11605571B2 (en) * | 2020-05-29 | 2023-03-14 | Qualcomm Incorporated | Package comprising a substrate, an integrated device, and an encapsulation layer with undercut |
| DE102022121884A1 (de) * | 2021-08-31 | 2023-03-02 | Infineon Technologies Ag | Ultraschallberührungssensor |
| US20230274993A1 (en) * | 2022-02-28 | 2023-08-31 | Texas Instruments Incorporated | Fabrication process for protecting circuit components |
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| DE10300956B3 (de) * | 2003-01-13 | 2004-07-15 | Epcos Ag | Bauelement mit Höchstfrequenzverbindungen in einem Substrat |
-
2003
- 2003-01-13 DE DE10300958A patent/DE10300958A1/de not_active Ceased
- 2003-12-16 WO PCT/EP2003/014346 patent/WO2004064140A1/de not_active Ceased
-
2004
- 2004-01-02 FR FR0400004A patent/FR2849956B1/fr not_active Expired - Fee Related
- 2004-01-12 JP JP2006500549A patent/JP4603527B2/ja not_active Expired - Lifetime
- 2004-01-12 WO PCT/EP2004/000150 patent/WO2004064152A2/de not_active Ceased
- 2004-01-12 US US10/541,911 patent/US20060103003A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009539235A (ja) * | 2006-05-30 | 2009-11-12 | エプコス アクチエンゲゼルシャフト | フリップチップ素子及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10300958A1 (de) | 2004-07-22 |
| JP4603527B2 (ja) | 2010-12-22 |
| WO2004064140A1 (de) | 2004-07-29 |
| WO2004064152A3 (de) | 2005-09-09 |
| JP2006517057A (ja) | 2006-07-13 |
| FR2849956A1 (fr) | 2004-07-16 |
| US20060103003A1 (en) | 2006-05-18 |
| FR2849956B1 (fr) | 2006-02-03 |
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