JP5185604B2 - パワー管理装置 - Google Patents
パワー管理装置 Download PDFInfo
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- JP5185604B2 JP5185604B2 JP2007317912A JP2007317912A JP5185604B2 JP 5185604 B2 JP5185604 B2 JP 5185604B2 JP 2007317912 A JP2007317912 A JP 2007317912A JP 2007317912 A JP2007317912 A JP 2007317912A JP 5185604 B2 JP5185604 B2 JP 5185604B2
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- 239000003990 capacitor Substances 0.000 claims description 22
- 239000004065 semiconductor Substances 0.000 claims description 22
- 150000004767 nitrides Chemical class 0.000 claims description 21
- 230000003071 parasitic effect Effects 0.000 description 28
- 230000001360 synchronised effect Effects 0.000 description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 230000008901 benefit Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 239000012212 insulator Substances 0.000 description 6
- 229910002704 AlGaN Inorganic materials 0.000 description 4
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 229910002601 GaN Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005533 two-dimensional electron gas Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0207—Geometrical layout of the components, e.g. computer aided design; custom LSI, semi-custom LSI, standard cell technique
- H01L27/0211—Geometrical layout of the components, e.g. computer aided design; custom LSI, semi-custom LSI, standard cell technique adapted for requirements of temperature
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/06—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
- H01L27/0605—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits made of compound material, e.g. AIIIBV
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
- H01L29/7786—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT
- H01L29/7787—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT with wide bandgap charge-carrier supplying layer, e.g. direct single heterostructure MODFET
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1588—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load comprising at least one synchronous rectifier element
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/8258—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using a combination of technologies covered by H01L21/8206, H01L21/8213, H01L21/822, H01L21/8252, H01L21/8254 or H01L21/8256
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/20—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L29/2003—Nitride compounds
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Dc-Dc Converters (AREA)
- Semiconductor Integrated Circuits (AREA)
- Junction Field-Effect Transistors (AREA)
Description
12:ドライバステージ
14:パルス幅変調(PWM)ステージ
16:負荷ステージ
18:制御スイッチ
20:同期スイッチ
22:高圧側のドライバスイッチ
22':高圧側のドライバスイッチ
24:低圧側のドライバスイッチ
24':低圧側のドライバスイッチ
26:レベルシフタ
28:ブートストラップキャパシタ
30:ブートストラップダイオード
35:出力インダクタ
37:出力キャパシタ
39:ワイヤボンド
40:基板
41:遷移層
42:GaN層
43:AlGaN層
44:2次元電子ガス
50:絶縁体
60:電導層
61:電導層
62:絶縁層
63:絶縁層
64:最下電導層
65:最下電導層
100:パワーステージ
110:負荷
120:出力インダクタンスループ
130:電解キャパシタループ
140:セラミックバルクキャパシタループ
150:CPUソケット下部ループ
160:寄生ループ
170:PCB寄生素子
Vs:出力接点
Claims (28)
- III族窒化物パワースイッチを有するパワーステージと、
このパワーステージの動作を制御するドライバステージと、
前記ドライバステージの動作制御のための信号を送信するドライバステージ制御回路を集積し、前記パワーステージの動作のための電力を入力するべく前記パワーステージに接続された負荷ステージとを備え、
前記パワーステージ及び前記ドライバステージが共通のモノリシック半導体ダイに集積され、前記パワーステージ及び前記ドライバステージがIII族窒化物のシングルヘテロ接合を活性域として含むパワー管理装置。 - 前記パワースイッチがハーフブリッジ接続された、請求項1記載のパワー管理装置。
- 前記パワースイッチがデプレッション型デバイスである、請求項2記載のパワー管理装置。
- 前記ドライバステージが、前記パワースイッチの1つを駆動するためにハーフブリッジ接続されたIII族窒化物の第1対スイッチと、
前記パワースイッチのもう1つを駆動するためにハーフブリッジ接続されたIII族窒化物の第2対スイッチとを備えている、請求項2記載のパワー管理装置。 - 前記第1対スイッチ並びに前記第2対スイッチがエンハンスメント型スイッチである、請求項4記載のパワー管理装置。
- 前記第1対スイッチ並びに前記第2対スイッチがデプレッション型スイッチである、請求項4記載のパワー管理装置。
- 前記ドライバステージ制御回路がパルス幅変調信号を発信する、請求項5記載のパワー管理装置。
- 前記ドライバステージ制御回路がパルス幅変調信号を発信する、請求項6記載のパワー管理装置。
- 前記ドライバステージ制御回路がパルス幅変調信号を発信する、請求項1記載のパワー管理装置。
- 前記パワーステージの出力電圧が設定範囲外になる時、前記信号が発信される、請求項1記載のパワー管理装置。
- 前記信号が負荷特定条件により発信される、請求項1記載のパワー管理装置。
- 前記負荷特定条件が前記負荷の瞬時温度を備えている、請求項11記載のパワー管理装置。
- 前記負荷特定条件が前記負荷ステージの処理速度を備えている、請求項11記載のパワー管理装置。
- 前記負荷ステージがマイクロプロセッサを備えている、請求項1記載のパワー管理装置。
- 前記負荷ステージがメモリデバイスを備えている、請求項1記載のパワー管理装置。
- モノリシック半導体ダイと、
III族窒化物の第1パワー半導体デバイス、及び、この第1パワー半導体デバイスに出力接点を有しながらハーフブリッジ接続された、III族窒化物の第2パワー半導体デバイスと、
前記モノリシック半導体ダイ内で前記第1パワー半導体デバイスに動作的に接続された、第1ドライバハーフブリッジと、
前記モノリシック半導体ダイ内で前記第2パワー半導体デバイスに動作的に接続された、第2ドライバハーフブリッジとを備え、
前記第1パワー半導体デバイス、前記第1ドライバハーフブリッジ、前記第2パワー半導体デバイス及び前記第2ドライバハーフブリッジが、III族窒化物のシングルヘテロ接合を活性域として含むパワー管理装置。 - 前記第1ドライバハーフブリッジ並びに前記第2ドライバハーフブリッジが、それぞれ1対のエンハンスメント型III族窒化物スイッチを備えている、請求項16記載のパワー管理装置。
- 前記第1ドライバハーフブリッジ並びに前記第2ドライバハーフブリッジが、それぞれ1対のデプレッション型III族窒化物スイッチを備えている、請求項16記載のパワー管理装置。
- 前記第1ドライバハーフブリッジが、レベルシフトキャパシタを備えているレベルシフタに接続され、前記キャパシタが前記モノリシック半導体ダイの表面に形成された、請求項16記載のパワー管理装置。
- 前記出力接点が、前記第1ドライバハーフブリッジ及び前記第2ドライバハーブブリッジの動作のために、信号を送信するドライバ制御回路を備えている負荷ステージに接続された、請求項16記載のパワー管理装置。
- 前記ドライバステージ制御回路がパルス幅変調信号を発信する、請求項20記載のパワー管理装置。
- 前記パワーステージの出力電圧が設定範囲外になる時、前記信号が発信される、請求項20記載のパワー管理装置。
- 前記信号が負荷特定条件により発信される、請求項20記載のパワー管理装置。
- 前記負荷特定条件が前記負荷の瞬時温度を備えている、請求項23記載のパワー管理装置。
- 前記負荷特定条件が前記負荷ステージの処理速度を備えている、請求項23記載のパワー管理装置。
- さらに負荷ステージを備え、この負荷ステージ及び前記モノリシック半導体ダイが集積されている、請求項16記載のパワー管理装置。
- 前記負荷ステージがマイクロプロセッサを備えている、請求項26記載のパワー管理装置。
- 前記負荷ステージがメモリデバイスを備えている、請求項26記載のパワー管理装置。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87441106P | 2006-12-11 | 2006-12-11 | |
US60/874,411 | 2006-12-11 | ||
US11/999,552 | 2007-12-04 | ||
US11/999,552 US7863877B2 (en) | 2006-12-11 | 2007-12-04 | Monolithically integrated III-nitride power converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008187167A JP2008187167A (ja) | 2008-08-14 |
JP5185604B2 true JP5185604B2 (ja) | 2013-04-17 |
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ID=39497188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007317912A Active JP5185604B2 (ja) | 2006-12-11 | 2007-12-10 | パワー管理装置 |
Country Status (4)
Country | Link |
---|---|
US (4) | US7863877B2 (ja) |
JP (1) | JP5185604B2 (ja) |
KR (1) | KR100921545B1 (ja) |
DE (1) | DE102007058726A1 (ja) |
Families Citing this family (67)
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US7928702B2 (en) * | 2005-04-13 | 2011-04-19 | International Rectifier Corporation | Driving circuit for use with high voltage depletion-mode semiconductor switches |
US8674670B2 (en) * | 2006-11-28 | 2014-03-18 | International Rectifier Corporation | DC/DC converter with depletion-mode III-nitride switches |
US7999365B2 (en) * | 2007-08-03 | 2011-08-16 | International Rectifier Corporation | Package for monolithic compound semiconductor (CSC) devices for DC to DC converters |
US8063616B2 (en) | 2008-01-11 | 2011-11-22 | International Rectifier Corporation | Integrated III-nitride power converter circuit |
US8659275B2 (en) * | 2008-01-11 | 2014-02-25 | International Rectifier Corporation | Highly efficient III-nitride power conversion circuit |
US7965126B2 (en) | 2008-02-12 | 2011-06-21 | Transphorm Inc. | Bridge circuits and their components |
US9559590B2 (en) * | 2008-03-06 | 2017-01-31 | Infineon Technologies Austria Ag | Methods and apparatus for a power supply |
US9159679B2 (en) * | 2008-09-15 | 2015-10-13 | International Rectifier Corporation | Semiconductor package with integrated passives and method for fabricating same |
US8289065B2 (en) | 2008-09-23 | 2012-10-16 | Transphorm Inc. | Inductive load power switching circuits |
WO2010117987A1 (en) * | 2009-04-08 | 2010-10-14 | Efficient Power Conversion Corporation | Bumped, self-isolated gan transistor chip with electrically isolated back surface |
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-
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- 2007-12-06 DE DE102007058726A patent/DE102007058726A1/de active Pending
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US8476885B2 (en) | 2013-07-02 |
KR100921545B1 (ko) | 2009-10-12 |
KR20080053909A (ko) | 2008-06-16 |
JP2008187167A (ja) | 2008-08-14 |
US8148964B2 (en) | 2012-04-03 |
US20080136390A1 (en) | 2008-06-12 |
DE102007058726A1 (de) | 2009-02-26 |
US20110095736A1 (en) | 2011-04-28 |
US20120293147A1 (en) | 2012-11-22 |
US20130342184A1 (en) | 2013-12-26 |
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