DE102009036033B4 - Through-hole for semiconductor wafers and manufacturing process - Google Patents
Through-hole for semiconductor wafers and manufacturing process Download PDFInfo
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- DE102009036033B4 DE102009036033B4 DE102009036033A DE102009036033A DE102009036033B4 DE 102009036033 B4 DE102009036033 B4 DE 102009036033B4 DE 102009036033 A DE102009036033 A DE 102009036033A DE 102009036033 A DE102009036033 A DE 102009036033A DE 102009036033 B4 DE102009036033 B4 DE 102009036033B4
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/20—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy
- H01L21/2003—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy characterised by the substrate
- H01L21/2007—Bonding of semiconductor wafers to insulating substrates or to semiconducting substrates using an intermediate insulating layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/0401—Bonding areas specifically adapted for bump connectors, e.g. under bump metallisation [UBM]
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
- H01L2224/05001—Internal layers
- H01L2224/0502—Disposition
- H01L2224/05022—Disposition the internal layer being at least partially embedded in the surface
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
- H01L2224/0554—External layer
- H01L2224/0556—Disposition
- H01L2224/05571—Disposition the external layer being disposed in a recess of the surface
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/06—Structure, shape, material or disposition of the bonding areas prior to the connecting process of a plurality of bonding areas
- H01L2224/061—Disposition
- H01L2224/06102—Disposition the bonding areas being at different heights
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
- H01L2224/13001—Core members of the bump connector
- H01L2224/1302—Disposition
- H01L2224/13021—Disposition the bump connector being disposed in a recess of the surface
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- H—ELECTRICITY
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
- H01L2224/13001—Core members of the bump connector
- H01L2224/13099—Material
- H01L2224/131—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/14—Structure, shape, material or disposition of the bump connectors prior to the connecting process of a plurality of bump connectors
- H01L2224/1401—Structure
- H01L2224/1403—Bump connectors having different sizes, e.g. different diameters, heights or widths
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- H01—ELECTRIC ELEMENTS
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- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49827—Via connections through the substrates, e.g. pins going through the substrate, coaxial cables
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/11—Manufacturing methods
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- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/013—Alloys
- H01L2924/014—Solder alloys
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/14—Integrated circuits
- H01L2924/143—Digital devices
- H01L2924/1433—Application-specific integrated circuit [ASIC]
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- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/146—Mixed devices
- H01L2924/1461—MEMS
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Abstract
Durchkontaktierung für Halbleiterwafer, bei der – ein Basis-Wafer (1) mit einem Anschluss-Pad (3) versehen ist, – ein Abdeck-Wafer (2) auf dem Basis-Wafer (1) angeordnet ist, – der Abdeck-Wafer (2) eine Schichtstruktur (20) aufweist, die für ein elektronisches Bauelement oder eine integrierte Schaltung vorgesehen ist, – die Schichtstruktur (20) des Abdeck-Wafers (2) auf einer dem Basis-Wafer (1) zugewandten Seite des Abdeck-Wafers (2) angeordnet ist und auf einer von dem Basis-Wafer (1) abgewandten Seite einen Anschluss-Pad (21) aufweist, der als elektrischer Anschluss des Bauelementes oder der Schaltung vorgesehen ist, – der Abdeck-Wafer (2) über den Anschluss-Pads (3, 21) durchgehende Öffnungen (25) aufweist, – eine Lotkugel (5), die mit dem Anschluss-Pad (3) des Basis-Wafers (1) elektrisch leitend verbunden ist, in der Öffnung (25) über diesem Anschluss-Pad (3) angeordnet ist und – eine weitere Lotkugel (22), die mit dem Anschluss-Pad (21) des Abdeck-Wafers (2) elektrisch leitend verbunden...Vias for semiconductor wafers, in which - a base wafer (1) is provided with a connection pad (3), - a cover wafer (2) is arranged on the base wafer (1), - the cover wafer ( 2) has a layer structure (20) which is provided for an electronic component or an integrated circuit, - the layer structure (20) of the cover wafer (2) on a side of the cover wafer facing the base wafer (1) ( 2) and has a connection pad (21) on a side facing away from the base wafer (1), which is provided as an electrical connection of the component or the circuit, - the cover wafer (2) via the connection Pads (3, 21) through openings (25), - a solder ball (5), which is electrically conductively connected to the connection pad (3) of the base wafer (1) in the opening (25) above this connection -Pad (3) is arranged and - another solder ball (22) with the connection pad (21) of the covering wafer (2) e electrically connected ...
Description
Die vorliegende Erfindung betrifft eine Durchkontaktierung für Halbleiterwafer, die durch Wafer-Bonding miteinander verbunden werden, und ein zugehöriges Verfahren zur Herstellung einer solchen Durchkontaktierung.The present invention relates to a via for semiconductor wafers bonded together by wafer bonding and an associated method of making such via.
In der
In der
In der
In der
In der
In der
Aufgabe der vorliegenden Erfindung ist es, eine neuartige Durchkontaktierung für Halbleiterwafer anzugeben. Außerdem soll ein zugehöriges Herstellungsverfahren angegeben werden.Object of the present invention is to provide a novel via for semiconductor wafers. In addition, an associated manufacturing process should be specified.
Diese Aufgabe wird mit der Durchkontaktierung für Halbleiterwafer mit den Merkmalen des Anspruches 1 beziehungsweise mit dem Verfahren mit den Merkmalen des Anspruches 5 gelöst. Ausgestaltungen ergeben sich aus den jeweiligen abhängigen Ansprüchen.This object is achieved with the plated through hole for semiconductor wafers with the features of
Bei der Durchkontaktierung wird ein Anschluss-Pad eines Basis-Wafers, auf dem ein Abdeck-Wafer angeordnet ist, mit einer Lotkugel (bump) versehen. Hierzu wird in dem Abdeck-Wafer, vor oder nach dem Verbinden mit dem Basis-Wafer, eine durchgehende Öffnung über dem Anschluss-Pad hergestellt, in der die Lotkugel angeordnet und elektrisch leitend mit dem Anschluss-Pad verbunden wird.In the through-connection, a connection pad of a base wafer, on which a cover wafer is arranged, is provided with a solder ball (bump). For this purpose, in the cover wafer, before or after the connection to the base wafer, a continuous opening is produced above the connection pad, in which the solder ball is arranged and electrically conductively connected to the connection pad.
Der Anschluss-Pad kann als elektrischer Anschluss eines elektronischen Bauelementes oder einer integrierten Schaltung des Basis-Wafers vorgesehen sein. Weitere Ausführungsbeispiele können Seitenwände der durchgehenden Öffnung besitzen, die mit einer Passivierung aus dielektrischem oder elektrisch isolierendem Material versehen sind. Vorzugsweise überragt die Lotkugel den Abdeck-Wafer, so dass auf der von dem Basis-Wafer abgewandten Seite des Abdeck-Wafers ein weiterer Wafer oder zum Beispiel ein PCB (printed circuit board) angeordnet und ein darauf vorhandener Anschlusskontakt elektrisch leitend mit der Lotkugel verbunden werden kann.The connection pad may be provided as an electrical connection of an electronic component or an integrated circuit of the base wafer. Further embodiments may have side walls of the through opening which are provided with a passivation of dielectric or electrically insulating material. The solder ball preferably projects beyond the cover wafer, so that a further wafer or, for example, a PCB (printed circuit board) is arranged on the side of the cover wafer facing away from the base wafer, and a connection contact present thereon is electrically conductively connected to the solder ball can.
Der Abdeck-Wafer kann zum Beispiel ein Siliziumsubstrat sein und braucht insbesondere nicht mit elektrisch leitenden Verbindungen versehen zu sein. Der Abdeck-Wafer kann eine Struktur aufweisen, die für ein oder mehrere elektronische Bauelemente oder für eine integrierte Schaltung vorgesehen ist. Der Abdeck-Wafer kann oberseitig strukturiert sein, so dass insbesondere die dem Basis-Wafer zugewandte Seite mit Aussparungen oder dergleichen versehen sein kann. Auch die dem Abdeck-Wafer zugewandte und von dem Abdeck-Wafer abgedeckte Oberseite des Basis-Wafers kann mit einer Oberflächenstruktur versehen sein. Hiermit ist es insbesondere möglich, in den verbundenen Wafern einen Hohlraum auszubilden, in dem zum Beispiel ein bewegliches Teil eines mikroelektromechanischen Bauelementes angeordnet sein kann.The cover wafer may be, for example, a silicon substrate and, in particular, need not be provided with electrically conductive connections. The cover wafer may have a structure provided for one or more electronic components or for an integrated circuit. The cover wafer can be structured on the upper side, so that in particular the side facing the base wafer can be provided with recesses or the like. Also, the cover wafer facing and covered by the cover wafer top of the base wafer may be provided with a surface structure. This makes it possible in particular to form a cavity in the connected wafers, in which, for example, a movable part of a microelectromechanical component can be arranged.
Die Erfindung besteht darin, auch ein Anschluss-Pad des Abdeck-Wafers freizulegen und auf der von dem Basis-Wafer abgewandten Seite des Anschluss-Pads des Abdeck-Wafers ebenfalls eine Lotkugel als elektrischen Anschluss anzuordnen und elektrisch leitend mit diesem Anschluss-Pad zu verbinden. Auf diese Weise ist es möglich, elektronische Bauelemente und integrierte Schaltungen beider Wafer auf derselben Seite des Abdeck-Wafers elektrisch anzuschließen. The invention consists in also exposing a connection pad of the cover wafer and also arranging a solder ball as an electrical connection on the side of the connection pad of the cover wafer facing away from the base wafer and electrically connecting it to this connection pad , In this way, it is possible to electrically connect electronic components and integrated circuits of both wafers on the same side of the capping wafer.
Die in dem Abdeck-Wafer vorgesehene durchgehende Öffnung oberhalb des Anschluss-Pads des Basis-Wafers kann durch ein an sich bekanntes Ätzverfahren unter Verwendung einer ebenfalls an sich bekannten Maskentechnik hergestellt werden. Es können auf diese Weise auch mehrere Öffnungen für mehrere Lotkugeln in dem Abdeck-Wafer vorgesehen werden. Da die Positionen dieser Öffnungen durch die Öffnungen einer geeignet strukturierten Maske festgelegt werden, ist es mit diesem Verfahren möglich, eine im Prinzip beliebige Anordnung von Anschluss-Pads des Basis-Wafers mit Lotkugeln als externen elektrischen Anschlüssen zu versehen.The through opening provided in the cover wafer above the connection pad of the base wafer can be produced by a per se known etching method using a masking technique which is also known per se. In this way, it is also possible to provide a plurality of openings for a plurality of solder balls in the cover wafer. Since the positions of these openings are defined by the openings of a suitably structured mask, it is possible with this method to provide a basically arbitrary arrangement of connection pads of the base wafer with solder balls as external electrical connections.
Es folgt eine genauere Beschreibung von Beispielen der Durchkontaktierung und des Herstellungsverfahrens anhand der beigefügten
Die
Die
Die
Die
Die
Die
Die
Die
Die
Die
Die
Die
Die
Die Verbindung zwischen dem Basis-Wafer
Auf dem Anschluss-Pad
Eine Lotkugel
Auf der von dem Basis-Wafer
Im Folgenden wird die Herstellung einer solchen Durchkontaktierung für Halbleiterwafer anhand der
Die
Die
Die mit der Aussparung
Die
Die
Die
Die
In der ersten Variante gemäß
Bei der Variante gemäß der
Die
In einem weiteren Verfahrensschritt, zum Beispiel einem Trockenätzschritt ohne Verwendung einer Maske, wird die weitere Passivierungsschicht
In beiden Herstellungsvarianten kann dann, vorzugsweise in einem stromlosen Verfahren, eine Metallschicht als Unterlotmetallisierung
Die
Auf der Lotkugel
Die Lotkugel
Die
Die
Dieses Verfahren ist besonders geeignet in Verbindung mit der zweiten Herstellungsvariante für die Durchkontaktierung. Die Aussparung für die spätere durchgehende Öffnung
Die
Es ist ein Vorteil der Durchkontaktierung und des zugehörigen Herstellungsverfahrens, dass hiermit eine grundsätzlich beliebige Anordnung solcher Durchkontaktierungen realisiert werden kann. Durchgehende Öffnungen können mittels einer geeigneten Maske an beliebigen Stellen des Abdeck-Wafers
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Basis-WaferBase wafer
- 22
- Abdeck-WaferCap wafer
- 33
- Anschluss-PadConnection pad
- 44
- UnterlotmetallisierungUnterlotmetallisierung
- 55
- Lotkugelsolder ball
- 66
- Metallisierungsebenemetallization
- 77
- Zwischenmetalldielektrikumintermetal
- 88th
- Opferschichtsacrificial layer
- 99
- Aussparungrecess
- 1010
- Schichtstruktur des Basis-WafersLayer structure of the base wafer
- 1111
- Aussparungrecess
- 1212
- Öffnungopening
- 1313
- Passivierungsschichtpassivation
- 1414
- Lackmaskeresist mask
- 1515
- weitere Passivierungsschichtfurther passivation layer
- 1616
- Lackmaskeresist mask
- 1717
- Verbindungsschichtlink layer
- 1818
- PCBPCB
- 1919
- Anschluss-PadConnection pad
- 2020
- Schichtstruktur des Abdeck-WafersLayer structure of the cover wafer
- 2121
- Anschluss-Pad des Abdeck-WafersConnection pad of the cover wafer
- 2222
- weitere Lotkugelanother solder ball
- 2323
- Biegebalkenbending beam
- 2424
- Kontur einer ÖffnungContour of an opening
- 2525
- durchgehende Öffnungthrough opening
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009036033A DE102009036033B4 (en) | 2009-08-04 | 2009-08-04 | Through-hole for semiconductor wafers and manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009036033A DE102009036033B4 (en) | 2009-08-04 | 2009-08-04 | Through-hole for semiconductor wafers and manufacturing process |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE102009036033A1 DE102009036033A1 (en) | 2011-02-17 |
| DE102009036033A8 DE102009036033A8 (en) | 2011-06-01 |
| DE102009036033B4 true DE102009036033B4 (en) | 2012-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| DE102009036033A Expired - Fee Related DE102009036033B4 (en) | 2009-08-04 | 2009-08-04 | Through-hole for semiconductor wafers and manufacturing process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102011116409B3 (en) | 2011-10-19 | 2013-03-07 | Austriamicrosystems Ag | Method for producing thin semiconductor components |
| EP3980845B1 (en) | 2019-06-10 | 2024-09-25 | Mellanox Technologies Ltd. | Integrated plasmonic modulator |
| US11764543B2 (en) | 2020-04-23 | 2023-09-19 | Mellanox Technologies, Ltd. | Integration of modulator and laser in a single chip |
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|---|---|---|---|---|
| US6429511B2 (en) * | 1999-07-23 | 2002-08-06 | Agilent Technologies, Inc. | Microcap wafer-level package |
| US6777263B1 (en) * | 2003-08-21 | 2004-08-17 | Agilent Technologies, Inc. | Film deposition to enhance sealing yield of microcap wafer-level package with vias |
| US20050212132A1 (en) * | 2004-03-25 | 2005-09-29 | Min-Chih Hsuan | Chip package and process thereof |
| WO2006061792A2 (en) * | 2004-12-10 | 2006-06-15 | Koninklijke Philips Electronics N.V. | Hermetically sealed integrated circuit package |
| US20080277771A1 (en) * | 2005-01-28 | 2008-11-13 | Matsushita Electric Industrial Co., Ltd. | Electronic Device Package Manufacturing Method and Electronic Device Package |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6660564B2 (en) | 2002-01-25 | 2003-12-09 | Sony Corporation | Wafer-level through-wafer packaging process for MEMS and MEMS package produced thereby |
| DE10232190A1 (en) | 2002-07-16 | 2004-02-05 | Austriamicrosystems Ag | Method for producing a component with deep connection surfaces |
| US6822326B2 (en) | 2002-09-25 | 2004-11-23 | Ziptronix | Wafer bonding hermetic encapsulation |
| JP4839818B2 (en) | 2005-12-16 | 2011-12-21 | 信越半導体株式会社 | Manufacturing method of bonded substrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6429511B2 (en) * | 1999-07-23 | 2002-08-06 | Agilent Technologies, Inc. | Microcap wafer-level package |
| US6777263B1 (en) * | 2003-08-21 | 2004-08-17 | Agilent Technologies, Inc. | Film deposition to enhance sealing yield of microcap wafer-level package with vias |
| US20050212132A1 (en) * | 2004-03-25 | 2005-09-29 | Min-Chih Hsuan | Chip package and process thereof |
| WO2006061792A2 (en) * | 2004-12-10 | 2006-06-15 | Koninklijke Philips Electronics N.V. | Hermetically sealed integrated circuit package |
| US20080277771A1 (en) * | 2005-01-28 | 2008-11-13 | Matsushita Electric Industrial Co., Ltd. | Electronic Device Package Manufacturing Method and Electronic Device Package |
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| DE102009036033A1 (en) | 2011-02-17 |
| DE102009036033A8 (en) | 2011-06-01 |
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