JP2014030018A - 炭化ケイ素デバイスにおけるバイアス温度不安定性(bti)を低減する半導体デバイスおよび方法 - Google Patents
炭化ケイ素デバイスにおけるバイアス温度不安定性(bti)を低減する半導体デバイスおよび方法 Download PDFInfo
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 120
- 239000004065 semiconductor Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000012298 atmosphere Substances 0.000 claims abstract description 44
- 238000004806 packaging method and process Methods 0.000 claims abstract description 38
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 229910052786 argon Inorganic materials 0.000 claims description 11
- 239000011261 inert gas Substances 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000001307 helium Substances 0.000 claims description 7
- 229910052734 helium Inorganic materials 0.000 claims description 7
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 7
- 230000005669 field effect Effects 0.000 claims description 6
- 229910052743 krypton Inorganic materials 0.000 claims description 5
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- 229910052724 xenon Inorganic materials 0.000 claims description 5
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 5
- 238000013459 approach Methods 0.000 description 16
- 239000010410 layer Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000000758 substrate Substances 0.000 description 11
- 239000002184 metal Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 7
- 230000003321 amplification Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000002019 doping agent Substances 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
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- 239000000203 mixture Substances 0.000 description 4
- 239000002800 charge carrier Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-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 group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000005360 phosphosilicate glass Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000009461 vacuum packaging Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002109 crystal growth method Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/02—Containers; Seals
- H01L23/04—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls
-
- 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
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
-
- 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
- H01L29/16—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table
- H01L29/1608—Silicon carbide
-
- 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
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
-
- 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
- H01L2924/0001—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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes Of Semiconductors (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
【解決手段】システムは、炭化ケイ素(SiC)半導体デバイス100と、SiC半導体デバイスを格納する気密シールしたパッケージング130とを含む。気密シールしたパッケージング130は、SiC半導体デバイス100の近くに特定の雰囲気132を維持するように構成される。さらに、特定の雰囲気132は、動作中にSiC半導体デバイス100のしきい値電圧のシフトを1V未満に制限する。
【選択図】図1
Description
102 基板
104 表面
106 ゲート電極
108 絶縁層
110 第2の表面
112 ドレイン電極
114 ドリフト領域
116 ウェル領域
118 チャネル領域
120 誘電体層
122 ソースコンタクト領域
124 ソース電極
125 ボディコンタクト領域
126 コンタクト層
130 パッケージング
132 特定の雰囲気
140 プロット
142 「post neg」増幅特性曲線
144 「post pos」増幅特性曲線
150 プロット
152 棒
154 棒
160 プロセス
162 SiCデバイスを作る
164 真空中にSiCデバイスをシールする
166 SiCデバイスを動作させるときのBTIを防止する
170 プロセス
172 SiCデバイスを作る
174 BTIを防止するために真空中でSiCデバイスを動作させる
180 プロット
182 棒
184 棒
190 プロセス
192 SiCデバイスを作る
194 不活性雰囲気中にSiCデバイスをシールする
196 SiCデバイスを動作させるときのBTIを防止する
Claims (20)
- 炭化ケイ素(SiC)半導体デバイスと、
前記SiC半導体デバイスを格納する気密シールしたパッケージングであって、前記気密シールしたパッケージングが前記SiC半導体デバイスの近くに特定の雰囲気を維持するように構成され、前記特定の雰囲気が動作中に前記SiC半導体デバイスのしきい値電圧のシフトを1V未満に制限する、気密シールしたパッケージングと
を備えたシステム。 - 前記特定の雰囲気が真空を含む、請求項1記載のシステム。
- 前記真空がほぼ1torr(133Pa)未満の圧力を含む、請求項2記載のシステム。
- 前記真空がほぼ0.1torr(13.3Pa)の圧力を含む、請求項2記載のシステム。
- 前記特定の雰囲気が、アルゴン、ヘリウム、窒素、クリプトン、キセノン、またはこれらの組み合わせを含む、請求項1記載のシステム。
- 前記SiC半導体デバイスが、金属−酸化膜電界効果型トランジスタ(MOSFET)を含む、請求項1記載のシステム。
- 前記SiC半導体デバイスが、絶縁ゲートバイポーラトランジスタ(IGBT)、MOS制御サイリスタ、またはゲート制御サイリスタを含む、請求項1記載のシステム。
- 前記SiC半導体デバイスの前記しきい値電圧の前記シフトが、前記SiC半導体デバイスを高温で、高いバイアスで、または両方で動作させたときに、前記SiC半導体デバイスにおけるバイアス温度不安定性(BTI)からもたらされる、請求項1記載のシステム。
- 前記特定の雰囲気が、前記SiC半導体デバイスの前記しきい値電圧の前記シフトをほぼ0.8V未満に制限する、請求項8記載のシステム。
- 前記特定の雰囲気が、前記SiC半導体デバイスの前記しきい値電圧の前記シフトをほぼ0.5V未満に制限する、請求項9記載のシステム。
- 前記SiC半導体デバイスが、175℃よりも高い温度で動作するように構成される、請求項1記載のシステム。
- 前記SiC半導体デバイスが、300℃よりも高い温度で動作するように構成される、請求項1記載のシステム。
- 金属−酸化膜電界効果型トランジスタ(MOSFET)デバイスの周りに配置された格納容器であって、前記格納容器が、前記格納容器の外部の環境と比較して減圧環境に前記MOSFETデバイスを取り囲むように構成され、前記減圧環境が、動作中に前記MOSFETデバイスのしきい値電圧シフトを低減する、格納容器
を含む、金属−酸化膜電界効果型トランジスタ(MOSFET)デバイス。 - 前記MOSFETの前記しきい値電圧シフトが、長時間にわたる高温でのおよび/または高いバイアスでの前記MOSFETの動作中の負バイアス温度不安定性(NBTI)の結果である、請求項13記載のデバイス。
- 前記減圧環境が、不活性ガスの減圧を含み、前記不活性ガスが、ヘリウム、アルゴン、または窒素を含む、請求項13記載のデバイス。
- 前記減圧環境が、前記しきい値電圧シフトをほぼ1V未満に低減する、請求項13記載のデバイス。
- 炭化ケイ素(SiC)電気デバイスを設けるステップと、
ほぼ10torr(1.33kPa)未満の圧力を有する雰囲気下でパッケージ内に前記SiC電気デバイスをシールするステップであって、前記雰囲気が、前記SiC電気デバイスを長時間にわたって高温で、高いバイアスで、または両方で動作させたときの負バイアス温度不安定性(NBTI)を防止する、シールするステップと
を含む、方法。 - 前記雰囲気が、基本的に1つまたは複数の不活性ガスからなる、請求項17記載の方法。
- 前記雰囲気が、空気を含む、請求項17記載の方法。
- 前記NBTIは、前記NBTIによる前記SiC電気デバイスのしきい値電圧シフトがほぼ1ボルト未満であるように防止される、請求項17記載の方法。
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US13/562,029 | 2012-07-30 | ||
US13/562,029 US9576868B2 (en) | 2012-07-30 | 2012-07-30 | Semiconductor device and method for reduced bias temperature instability (BTI) in silicon carbide devices |
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JP2014030018A true JP2014030018A (ja) | 2014-02-13 |
JP6266252B2 JP6266252B2 (ja) | 2018-01-24 |
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US (1) | US9576868B2 (ja) |
EP (1) | EP2693469A3 (ja) |
JP (1) | JP6266252B2 (ja) |
CN (1) | CN103579302B (ja) |
BR (1) | BR102013019237A2 (ja) |
CA (1) | CA2822132C (ja) |
Cited By (1)
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JP2018125443A (ja) * | 2017-02-01 | 2018-08-09 | トヨタ自動車株式会社 | 半導体装置 |
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US10367089B2 (en) | 2011-03-28 | 2019-07-30 | General Electric Company | Semiconductor device and method for reduced bias threshold instability |
US9576868B2 (en) * | 2012-07-30 | 2017-02-21 | General Electric Company | Semiconductor device and method for reduced bias temperature instability (BTI) in silicon carbide devices |
CN113016074B (zh) * | 2021-02-19 | 2022-08-12 | 英诺赛科(苏州)科技有限公司 | 半导体器件 |
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CA2822132A1 (en) | 2014-01-30 |
US9576868B2 (en) | 2017-02-21 |
EP2693469A2 (en) | 2014-02-05 |
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CN103579302B (zh) | 2018-05-08 |
CN103579302A (zh) | 2014-02-12 |
BR102013019237A2 (pt) | 2015-08-25 |
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EP2693469A3 (en) | 2016-01-20 |
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