JP2006526928A - ローパスフィルタおよび電子装置 - Google Patents
ローパスフィルタおよび電子装置 Download PDFInfo
- Publication number
- JP2006526928A JP2006526928A JP2006508458A JP2006508458A JP2006526928A JP 2006526928 A JP2006526928 A JP 2006526928A JP 2006508458 A JP2006508458 A JP 2006508458A JP 2006508458 A JP2006508458 A JP 2006508458A JP 2006526928 A JP2006526928 A JP 2006526928A
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- Prior art keywords
- pass filter
- low
- capacitor
- semiconductor device
- electronic device
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- 239000004065 semiconductor Substances 0.000 claims abstract description 53
- 239000003990 capacitor Substances 0.000 claims abstract description 49
- 239000000758 substrate Substances 0.000 claims description 22
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 229910021332 silicide Inorganic materials 0.000 claims 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims 1
- 239000010410 layer Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004100 electronic packaging Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/06—Frequency selective two-port networks including resistors
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/12—Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
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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
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16135—Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/16145—Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked
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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
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16151—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/16221—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/16245—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
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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
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32135—Disposition the layer connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/32145—Disposition the layer connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked
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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
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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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
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/48145—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked
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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
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/48145—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked
- H01L2224/48147—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked with an intermediate bond, e.g. continuous wire daisy chain
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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
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48257—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a die pad of the item
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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
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4912—Layout
- H01L2224/4917—Crossed wires
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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
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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- 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
- H01L2924/181—Encapsulation
Landscapes
- Semiconductor Integrated Circuits (AREA)
- Filters And Equalizers (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Transceivers (AREA)
- Networks Using Active Elements (AREA)
Abstract
Description
100 電子装置
C1,C2,C3 キャパシタ
R1,R2,R3,R3’ レジスタ
Claims (11)
- 並列に接続された大容量および小容量キャパシタを備えるローパスフィルタであって、前記大容量キャパシタはレジスタと直列に接続され、前記フィルタは小容量および大容量キャパシタが垂直トレンチキャパシタとして設けられる第1の表面を備える半導体基板を基礎として実施し、前記トレンチは前記レジスタが設けられる前記第1の表面まで延在することを特徴とする、ローパスフィルタ。
- 前記半導体基板がさらにドリフト補償部を備えることを特徴とする、請求項1に記載のローパスフィルタ。
- 前記フィルタの一端が接地されることを特徴とする、請求項1に記載のローパスフィルタ。
- 前記小容量および大容量キャパシタが、少なくとも0.5kΩ/cmの抵抗を有する高抵抗基板領域によって分離されることを特徴とする、請求項1に記載のローパスフィルタ。
- 前記トレンチキャパシタがケイ化窒素を含む誘電体を有することを特徴とする、請求項1に記載のローパスフィルタ。
- 前記レジスタが多結晶シリコンを含む層を備え、前記層において前記キャパシタの上位電極も画定されることを特徴とする、請求項1に記載のローパスフィルタ。
- 前記半導体基板がさらにダイオードを備えることを特徴とする、請求項1に記載のローパスフィルタ。
- コンパレータ、ローパスフィルタ、および電圧制御発振器を備えるフェーズロックループ機能を設けた電子装置であって、前記コンパレータと前記発振器は単一の半導体装置の部分をなし、前記ローパスフィルタは小容量および大容量キャパシタによって実施し、請求項1から7のいずれかに記載の前記ローパスフィルタが存在し、前記フィルタが積層型ダイ構成で前記半導体装置に取り付けられることを特徴とする、電子装置。
- 前記半導体装置に第1の側と対向する第2の側とを設け、該第1の側には前記ローパスフィルタが存在し、該第2の側では前記半導体装置をヒートシンクに結合することができる、請求項8に記載の電子装置。
- 前記ローパスフィルタの側方寸法が、最大でも前記半導体装置のそれに等しいことを特徴とする、請求項8または9に記載の電子装置。
- 前記フェーズロックループを開ループ構造で提供する、請求項8に記載の電子装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03076725 | 2003-06-03 | ||
EP03076725.5 | 2003-06-03 | ||
PCT/IB2004/050778 WO2004107568A1 (en) | 2003-06-03 | 2004-05-26 | Low pass filter and electronic device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006526928A true JP2006526928A (ja) | 2006-11-24 |
JP4704329B2 JP4704329B2 (ja) | 2011-06-15 |
Family
ID=33483967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006508458A Expired - Lifetime JP4704329B2 (ja) | 2003-06-03 | 2004-05-26 | ローパスフィルタおよび電子装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7388439B2 (ja) |
EP (1) | EP1634371B1 (ja) |
JP (1) | JP4704329B2 (ja) |
KR (1) | KR101145569B1 (ja) |
CN (1) | CN1799195B (ja) |
AT (1) | ATE403971T1 (ja) |
DE (1) | DE602004015596D1 (ja) |
WO (1) | WO2004107568A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009055116A (ja) * | 2007-08-23 | 2009-03-12 | Sanyo Electric Co Ltd | ローパスフィルタ及びオーディオアンプ |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100735455B1 (ko) | 2005-11-22 | 2007-07-04 | 삼성전기주식회사 | 주파수 드리프트 개선기능을 갖는 위상 동기 제어기 |
KR101315858B1 (ko) * | 2007-01-29 | 2013-10-08 | 엘지이노텍 주식회사 | 위성방송수신기의 주파수 드래프트 보상 장치 |
EP2249478B1 (en) * | 2008-02-20 | 2015-01-07 | Taiyo Yuden Co., Ltd. | Filter, branching filter, communication module, and communication equipment |
US8143659B2 (en) * | 2008-04-14 | 2012-03-27 | Infineon Technologies Ag | Vertical trench capacitor, chip comprising the capacitor, and method for producing the capacitor |
US8178962B1 (en) | 2009-04-21 | 2012-05-15 | Xilinx, Inc. | Semiconductor device package and methods of manufacturing the same |
US8963671B2 (en) | 2012-08-31 | 2015-02-24 | Advanced Semiconductor Engineering, Inc. | Semiconductor transformer device and method for manufacturing the same |
FR3038105B1 (fr) * | 2015-06-29 | 2017-08-04 | Oberthur Technologies | Module equipe d'un condensateur et d'une antenne, avec disposition d'electrode de condensateur amelioree |
EP3680934A1 (en) * | 2019-01-08 | 2020-07-15 | Murata Manufacturing Co., Ltd. | Rc architectures, and methods of fabrication thereof |
Citations (11)
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JPS6343356A (ja) * | 1986-08-08 | 1988-02-24 | Fujitsu Ltd | 半導体記憶装置およびその製造方法 |
JPH0212963A (ja) * | 1988-06-30 | 1990-01-17 | Nec Corp | 半導体記憶装置 |
JPH02214213A (ja) * | 1989-02-15 | 1990-08-27 | Hitachi Ltd | 自走発振周波数調整不要hdd用データセパレータ |
JPH04212451A (ja) * | 1990-09-27 | 1992-08-04 | Toshiba Corp | 半導体記憶装置及びその製造方法 |
JPH07336141A (ja) * | 1994-06-03 | 1995-12-22 | Matsushita Electric Ind Co Ltd | 発振器 |
JPH08163113A (ja) * | 1994-12-01 | 1996-06-21 | Fujitsu Ltd | 誤差検出回路並びにこれを用いたクロック再生回路及び遅延ロック回路 |
JPH08274581A (ja) * | 1995-03-30 | 1996-10-18 | Matsushita Electric Ind Co Ltd | アナログフィルター |
JP2000165459A (ja) * | 1998-11-23 | 2000-06-16 | Motorola Inc | 位相同期ル―プおよびその方法 |
WO2001010025A1 (en) * | 1999-08-02 | 2001-02-08 | Qualcomm Incorporated | Method and apparatus for multiple band voltage controlled oscillator with noise immunity |
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JP2003152535A (ja) * | 2001-11-16 | 2003-05-23 | Hitachi Ltd | 通信用半導体集積回路および無線通信システム |
Family Cites Families (6)
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KR100190002B1 (ko) | 1995-12-29 | 1999-06-01 | 윤종용 | 저항과 캐패시터를 함께 구비하는 반도체 소자 및 그제조방법 |
TW388877B (en) * | 1997-04-23 | 2000-05-01 | Toshiba Corp | Semiconductor device and its manufacturing process |
KR100290784B1 (ko) * | 1998-09-15 | 2001-07-12 | 박종섭 | 스택 패키지 및 그 제조방법 |
US6700203B1 (en) * | 2000-10-11 | 2004-03-02 | International Business Machines Corporation | Semiconductor structure having in-situ formed unit resistors |
KR100441993B1 (ko) * | 2001-11-02 | 2004-07-30 | 한국전자통신연구원 | 고주파 저역 통과 필터 |
US6984860B2 (en) * | 2002-11-27 | 2006-01-10 | Semiconductor Components Industries, L.L.C. | Semiconductor device with high frequency parallel plate trench capacitor structure |
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2004
- 2004-05-26 CN CN2004800153707A patent/CN1799195B/zh not_active Expired - Fee Related
- 2004-05-26 JP JP2006508458A patent/JP4704329B2/ja not_active Expired - Lifetime
- 2004-05-26 US US10/558,718 patent/US7388439B2/en active Active
- 2004-05-26 AT AT04734878T patent/ATE403971T1/de not_active IP Right Cessation
- 2004-05-26 EP EP04734878A patent/EP1634371B1/en not_active Expired - Lifetime
- 2004-05-26 KR KR1020057023110A patent/KR101145569B1/ko active IP Right Grant
- 2004-05-26 WO PCT/IB2004/050778 patent/WO2004107568A1/en active IP Right Grant
- 2004-05-26 DE DE602004015596T patent/DE602004015596D1/de not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6343356A (ja) * | 1986-08-08 | 1988-02-24 | Fujitsu Ltd | 半導体記憶装置およびその製造方法 |
JPH0212963A (ja) * | 1988-06-30 | 1990-01-17 | Nec Corp | 半導体記憶装置 |
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JP2009055116A (ja) * | 2007-08-23 | 2009-03-12 | Sanyo Electric Co Ltd | ローパスフィルタ及びオーディオアンプ |
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JP4704329B2 (ja) | 2011-06-15 |
WO2004107568A1 (en) | 2004-12-09 |
KR20060017836A (ko) | 2006-02-27 |
ATE403971T1 (de) | 2008-08-15 |
US20070018748A1 (en) | 2007-01-25 |
CN1799195A (zh) | 2006-07-05 |
DE602004015596D1 (de) | 2008-09-18 |
CN1799195B (zh) | 2010-06-02 |
KR101145569B1 (ko) | 2012-05-15 |
US7388439B2 (en) | 2008-06-17 |
EP1634371A1 (en) | 2006-03-15 |
EP1634371B1 (en) | 2008-08-06 |
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