JP4783551B2 - スイッチング素子と縁部素子とを備えた半導体装置 - Google Patents
スイッチング素子と縁部素子とを備えた半導体装置 Download PDFInfo
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- JP4783551B2 JP4783551B2 JP2003579287A JP2003579287A JP4783551B2 JP 4783551 B2 JP4783551 B2 JP 4783551B2 JP 2003579287 A JP2003579287 A JP 2003579287A JP 2003579287 A JP2003579287 A JP 2003579287A JP 4783551 B2 JP4783551 B2 JP 4783551B2
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- 239000004065 semiconductor Substances 0.000 title claims description 154
- 230000000903 blocking effect Effects 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 13
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 8
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 7
- 230000005684 electric field Effects 0.000 description 19
- 230000015556 catabolic process Effects 0.000 description 10
- 238000001465 metallisation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/0603—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
- H01L29/0607—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration
- H01L29/0611—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices
- H01L29/0615—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE]
- H01L29/0619—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/80—Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier
- H01L29/808—Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier with a PN junction gate, e.g. PN homojunction gate
- H01L29/8083—Vertical transistors
Description
Claims (16)
- 電流(I)を制御及びスイッチングするための半導体装置であって、スイッチング素子(110、111)と縁部素子(120)とを備え、
a)スイッチング素子(110、111)は、
a1)アノード電極(60)およびカソード電極(50)と接続された第1導電形(n又はp;以下同様)の第1の半導体領域(2)であって、カソード及びアノード電極(50、60)は第1の半導体領域(2)の互いに対向する表面上に配置されておりそして電流(I)が縦方向の電流路上を第1の半導体領域(2)を通って流れる前記第1の半導体領域(2)と、
a2)カソード電極(50)と接触しそして第1の半導体領域(2)内に少なくとも部分的に埋め込まれた、前記第1導電形とは異なる導電形の第2導電形(つまり第1導電形がpの場合はn、nの場合はp;以下同様)を持つ島領域(3)と、
a3)第1の半導体領域(2)内に達する第1の空乏層(24)を生成するための手段(4、40)とを備え、
前記手段(4、40)は制御電極(40)を備えていて、第1の半導体領域(2)上に、前記手段(4、40)と島領域(3)とが、それらの上方から見て部分的に重なり合い、第1の半導体領域(2)内に横形チャネル領域(22)がカソード電極(50)とアノード電極(60)の間の電流路の一部分として生じ、そして
第1の空乏層(24)並びに島領域(3)から第1の半導体領域(2)内に達する第2空乏層(23)が横方向チャネル領域(22)を遮断するように配置されており、
b)縁部素子(120)は
b1)制御電極(40)と導電的に結合され、少なくとも部分的に第1の半導体領域(2)の内部に埋込まれた第2導電形(p又はn)の縁領域(31)と、
b2)縁領域(31)における、その上方から見て前記スイッチング素子側の縁部とは反対側の縁部にその横方向から接する、第2導電形の縁遮断領域(32)とを有し、
この縁領域(31)、縁遮断領域(32)および島領域(3)は同一平面に配置されている
ことを特徴とする半導体装置。 - 第1半導体領域(2)がアノード電極(60)と接触した基板(27)と、基板側の第1半導体層(261)と、第1半導体層(261)上に配置された第2半導体層(262)とを有し、
基板(27)と両半導体層(261、262)はそれぞれ第1導電形であり、
島領域(3)は基板側の第1半導体層(261)内に配置されていて、第1半導体層(261)の第1表面に対し平行に延び、そして
第2半導体層(262)内に存在し、垂直方向に第1表面(80)迄達する接触孔(70)が、島領域(3)を部分的に露出させている
ことを特徴とする請求項1記載の半導体装置。 - 接触孔(70)の側方に配置された第1空乏層(24)を生成するための手段が、制御電極(40)とオーミックに接触しかつ第2の半導体層(262)の第2の表面に配置された第2導電形(p又はn)の第2半導体領域(4)を有することを特徴とする請求項2記載の半導体装置。
- 第1の空乏層(24)が埋込んだ島領域(3)の上方に配置された請求項1から3の1つに記載の半導体装置。
- 互いに境を接して配置された複数のスイッチング素子(110、111)を有する請求項1から4の1つに記載の半導体装置。
- 隣接するスイッチング素子(110、111)の埋込み島領域(3)間の間隔(d)が同寸である請求項5記載の半導体装置。
- 縁部素子(120)に隣接するスイッチング素子(110、111)の埋込み島領域(3)と、埋込み縁領域(31)との間隔(d1)が、最大で隣接するスイッチング素子(110、111)の埋込み島領域(3)間の間隔(d)と同じ大きさである請求項5又は6記載の半導体装置。
- 2つのスイッチング素子(110、111)間に制御接触素子(130、131)が配置され、当該制御接触素子(130、131)は、第1の半導体領域(2)内に埋め込まれた、第2導電形の島領域(34)と、その上方の半導体領域の表面に形成された制御接触領域(42)とを有し、更に、その制御接触領域(42)上には、制御電極(40)に導電的に接続された制御電極用端子(41)を有している
ことを特徴とする請求項5から7の1つに記載の半導体装置。 - 前記制御接触素子(130、131)に埋め込まれた少なくとも1つの島領域(34)が、前記スイッチング素子(110、111)に埋め込まれた島領域(3)と同じ高さに配置されている
ことを特徴とする請求項8記載の半導体装置。 - 制御接触素子(130)に隣接するスイッチング素子(111)の埋込み島領域(3)と、制御接触素子(130)の埋込み島領域(34)との間隔(d2)が、隣接するスイッチング素子(111)の埋込み島領域(3)間の間隔(d)と同じ大きさである請求項8又は9記載の半導体装置。
- 前記制御接触素子(130)が、制御電極用端子(41)の下方に配置された第2の導電形の制御接触領域(42)を含む請求項8から10の1つに記載の半導体装置。
- 制御接触領域(42)と、制御接触素子(131)の埋込み島領域(34)とが一体にまとめられている請求項9又は11記載の半導体装置。
- 埋込み縁領域(31)を制御電極(40)により接続すべく、縁部素子(120)の範囲内に、前記埋込み縁領域(31)と制御電極(40)とに跨る凹所(71)を備える請求項1から12の1つに記載の半導体装置。
- 凹所(71)の側縁(72)に絶縁部(33)を備える請求項13記載の半導体装置。
- 第1の半導体領域(2)内の凹所(71)の側縁(72)に、第2の導電形の接合領域(33)を備える請求項13又は14記載の半導体装置。
- 半導体材料が炭化ケイ素である請求項1から15の1つに記載の半導体装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10213534.7 | 2002-03-26 | ||
DE10213534A DE10213534B4 (de) | 2002-03-26 | 2002-03-26 | Halbleiteraufbau mit Schaltelement und Randelement |
PCT/DE2003/000790 WO2003081679A1 (de) | 2002-03-26 | 2003-03-12 | Halbleiteraufbau mit schaltelement und randelement |
Publications (2)
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JP2005527969A JP2005527969A (ja) | 2005-09-15 |
JP4783551B2 true JP4783551B2 (ja) | 2011-09-28 |
Family
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JP2003579287A Expired - Fee Related JP4783551B2 (ja) | 2002-03-26 | 2003-03-12 | スイッチング素子と縁部素子とを備えた半導体装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7071503B2 (ja) |
EP (1) | EP1488465B1 (ja) |
JP (1) | JP4783551B2 (ja) |
DE (1) | DE10213534B4 (ja) |
WO (1) | WO2003081679A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE10213534B4 (de) * | 2002-03-26 | 2007-06-21 | Siced Electronics Development Gmbh & Co. Kg | Halbleiteraufbau mit Schaltelement und Randelement |
DE102006023171B4 (de) * | 2006-05-17 | 2009-10-22 | Infineon Technologies Austria Ag | Halbleiterbauelement mit lokaler Plasmaextraktion |
US8435873B2 (en) * | 2006-06-08 | 2013-05-07 | Texas Instruments Incorporated | Unguarded Schottky barrier diodes with dielectric underetch at silicide interface |
US7772621B2 (en) * | 2007-09-20 | 2010-08-10 | Infineon Technologies Austria Ag | Semiconductor device with structured current spread region and method |
US8106487B2 (en) | 2008-12-23 | 2012-01-31 | Pratt & Whitney Rocketdyne, Inc. | Semiconductor device having an inorganic coating layer applied over a junction termination extension |
CN102341898A (zh) * | 2009-03-02 | 2012-02-01 | 丰田自动车株式会社 | 氮化物半导体装置及其制造方法 |
FR2975530B1 (fr) * | 2011-05-20 | 2014-02-28 | Mersen France Sb Sas | Composant electronique d'un limiteur de courant pour proteger une alimentation electrique |
Citations (6)
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JPH1174542A (ja) * | 1997-08-29 | 1999-03-16 | Tokin Corp | 半導体装置及びその製造方法 |
JP2000252475A (ja) * | 1999-03-03 | 2000-09-14 | Kansai Electric Power Co Inc:The | 電圧制御型半導体装置とその製法及びそれを用いた電力変換装置 |
JP2001196604A (ja) * | 2000-01-12 | 2001-07-19 | Hitachi Ltd | 半導体装置 |
WO2002009195A1 (de) * | 2000-07-25 | 2002-01-31 | Siced Electronics Development Gmbh & Co. Kg | Halbleiteraufbau mit vergrabenem inselgebiet und kontaktgebiet |
JP2002185015A (ja) * | 2000-12-12 | 2002-06-28 | Kansai Electric Power Co Inc:The | 高耐電圧半導体装置 |
JP2002231947A (ja) * | 2001-02-06 | 2002-08-16 | Kansai Electric Power Co Inc:The | 半導体装置 |
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JPH0795599B2 (ja) * | 1986-06-27 | 1995-10-11 | サンケン電気株式会社 | 電界効果半導体装置 |
TW286435B (ja) * | 1994-07-27 | 1996-09-21 | Siemens Ag | |
DE19548443A1 (de) | 1995-12-22 | 1997-06-26 | Siemens Ag | Halbleiteranordnung zur Strombegrenzung |
DE19610135C1 (de) * | 1996-03-14 | 1997-06-19 | Siemens Ag | Elektronische Einrichtung, insbesondere zum Schalten elektrischer Ströme, für hohe Sperrspannungen und mit geringen Durchlaßverlusten |
DE19631872C2 (de) * | 1996-08-07 | 2003-04-17 | Daimler Chrysler Ag | Vertikales Halbleiterbauelement |
DE19717614A1 (de) | 1997-04-25 | 1998-10-29 | Siemens Ag | Passiver Halbleiterstrombegrenzer |
TW407371B (en) | 1997-04-25 | 2000-10-01 | Siemens Ag | Equipment to limited alternative current, especially in short-circuit case |
DE19726678A1 (de) | 1997-06-24 | 1999-01-07 | Siemens Ag | Passiver Halbleiterstrombegrenzer |
DE19842488A1 (de) * | 1998-09-16 | 2000-03-30 | Siemens Ag | Halbleitervorrichtung und Halbleiterstruktur mit Kontaktierung |
DE10213534B4 (de) * | 2002-03-26 | 2007-06-21 | Siced Electronics Development Gmbh & Co. Kg | Halbleiteraufbau mit Schaltelement und Randelement |
-
2002
- 2002-03-26 DE DE10213534A patent/DE10213534B4/de not_active Expired - Fee Related
-
2003
- 2003-03-12 EP EP20030711840 patent/EP1488465B1/de not_active Expired - Lifetime
- 2003-03-12 WO PCT/DE2003/000790 patent/WO2003081679A1/de active Application Filing
- 2003-03-12 JP JP2003579287A patent/JP4783551B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-24 US US10/950,027 patent/US7071503B2/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1174542A (ja) * | 1997-08-29 | 1999-03-16 | Tokin Corp | 半導体装置及びその製造方法 |
JP2000252475A (ja) * | 1999-03-03 | 2000-09-14 | Kansai Electric Power Co Inc:The | 電圧制御型半導体装置とその製法及びそれを用いた電力変換装置 |
JP2001196604A (ja) * | 2000-01-12 | 2001-07-19 | Hitachi Ltd | 半導体装置 |
WO2002009195A1 (de) * | 2000-07-25 | 2002-01-31 | Siced Electronics Development Gmbh & Co. Kg | Halbleiteraufbau mit vergrabenem inselgebiet und kontaktgebiet |
JP2002185015A (ja) * | 2000-12-12 | 2002-06-28 | Kansai Electric Power Co Inc:The | 高耐電圧半導体装置 |
JP2002231947A (ja) * | 2001-02-06 | 2002-08-16 | Kansai Electric Power Co Inc:The | 半導体装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1488465A1 (de) | 2004-12-22 |
JP2005527969A (ja) | 2005-09-15 |
US20050062112A1 (en) | 2005-03-24 |
EP1488465B1 (de) | 2015-04-29 |
DE10213534A1 (de) | 2003-10-23 |
DE10213534B4 (de) | 2007-06-21 |
US7071503B2 (en) | 2006-07-04 |
WO2003081679A1 (de) | 2003-10-02 |
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