JP6407455B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP6407455B2 JP6407455B2 JP2017562433A JP2017562433A JP6407455B2 JP 6407455 B2 JP6407455 B2 JP 6407455B2 JP 2017562433 A JP2017562433 A JP 2017562433A JP 2017562433 A JP2017562433 A JP 2017562433A JP 6407455 B2 JP6407455 B2 JP 6407455B2
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- 239000004065 semiconductor Substances 0.000 title claims description 145
- 239000010410 layer Substances 0.000 claims description 168
- 239000012535 impurity Substances 0.000 claims description 18
- 239000002344 surface layer Substances 0.000 claims description 9
- 230000003071 parasitic effect Effects 0.000 description 31
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 25
- 229920005591 polysilicon Polymers 0.000 description 25
- 238000006073 displacement reaction Methods 0.000 description 22
- 239000000758 substrate Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 9
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- 238000010304 firing Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000005468 ion implantation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 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
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
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Description
まず、本発明の実施の形態1における半導体装置の構成を説明する。図1は、本発明の実施の形態1における半導体装置を示す模式断面図である。
図8は、本発明の実施の形態2における半導体装置を構成するIGBT素子を示す拡大構造断面である。図8において、図1と同じ符号を付けたものは、同一または対応する構成を示しており、その説明を省略する。本発明の実施の形態1とは、ダイオードを複数直列に接続した構成が相違している。本発明の実施の形態2では、本発明の実施の形態1と相違する部分について説明し、同一または対応する部分についての説明は省略する。
図10は、本発明の実施の形態3における半導体装置を構成するIGBT素子を示す拡大構造断面図である。また、図11は、本発明の実施の形態3における半導体装置を構成するIGBT素子の素子周辺部を示す拡大構造断面図である。図10および図11において、図3と同じ符号を付けたものは、同一または対応する構成を示しており、その説明を省略する。本発明の実施の形態1とは、第1制御電極1とダイオード21のアノードとの間に内蔵ゲート抵抗33が設けられた構成が相違している。なお、図11は第1制御電極1における断面図である。
図12は、本発明の実施の形態4における半導体装置を構成するIGBT素子を示す拡大構造断面図である。図12において、図3と同じ符号を付けたものは、同一または対応する構成を示しており、その説明を省略する。本発明の実施の形態1とは、ダミートレンチゲートの一部がエミッタ端子31に接続され、アクティブダミートレンチゲートとしていない構成が相違している。
図13は、本発明の実施の形態5における半導体装置を構成するIGBT素子を示す拡大構造断面図である。図13において、図3と同じ符号を付けたものは、同一または対応する構成を示しており、その説明を省略する。本発明の実施の形態1とは、第2p型ベース層の代わりに第2n−型ベース層7cを設けた構成が相違している。なお、第2n−型ベース層7cに接するトレンチゲートもダミートレンチゲートであり、ゲート電圧が印加される場合、アクティブダミーゲートと呼ぶ。アクティブダミートレンチゲートである第2制御電極2aの役割は、上記実施の形態1〜5で説明した第2制御電極2と同じである。
図14は、本発明の実施の形態6における半導体装置を構成するIGBT素子の素子周辺部を示す拡大構造断面図である。図14において、図3と同じ符号を付けたものは、同一または対応する構成を示しており、その説明を省略する。本発明の実施の形態1とは、ダイオード21をIGBT素子20と一体に形成した構成が相違している。なお、図14は、実施の形態3の図11とは異なり、第2制御電極2における断面図である。
2、2a 第2制御電極
3 第3制御電極
6 n+型エミッタ層
7 p型ベース層
7a 第1p型ベース層、7b 第2p型ベース層、7c 第2n−型ベース層
9 p+型コンタクト層
10 n−型ドリフト層
12 p型コレクタ層
14 ゲート絶縁膜
15、15a トレンチゲート電極、15b、15c 配線部
16 トレンチ
20 IGBT素子
21、21a、21b ダイオード
22 ゲート抵抗
100 半導体装置
Claims (7)
- n型のドリフト層と、
前記ドリフト層の表面側に設けられたp型のベース層と、
前記ベース層の表面側に選択的に設けられたn型のエミッタ層と、
前記エミッタ層の表層から前記ドリフト層に達するように埋設されたトレンチゲート電極がゲート絶縁膜を介して前記エミッタ層、前記ベース層および前記ドリフト層に接するトレンチゲートと、
前記ベース層の表層から前記ドリフト層に達するように埋設されたダミートレンチゲート電極がゲート絶縁膜を介して前記ベース層および前記ドリフト層に接するダミートレンチゲートと、
前記ドリフト層の裏面側に設けられたp型のコレクタ層と、
前記トレンチゲート電極にアノード側が電気的に接続され、前記ダミートレンチゲート電極にカソード側が電気的に接続されたダイオードと、
を備えた半導体装置。 - n型のドリフト層と、
前記ドリフト層の表面側に選択的に設けられたp型のベース層と、
前記ベース層の表面側に設けられたn型のエミッタ層と、
前記エミッタ層の表層から前記ドリフト層に達するように埋設されたトレンチゲート電極がゲート絶縁膜を介して前記エミッタ層、前記ベース層および前記ドリフト層に接するトレンチゲートと、
前記ドリフト層の表層から前記ドリフト層の内部に埋設されたダミートレンチゲート電極がゲート絶縁膜を介して前記ドリフト層に接するダミートレンチゲートと、
前記ドリフト層の裏面側に設けられたp型のコレクタ層と、
前記トレンチゲート電極にアノード側が電気的に接続され、前記ダミートレンチゲート電極にカソード側が電気的に接続されたダイオードと、
を備えた半導体装置。 - 前記ダミートレンチゲートを複数有し、複数の前記ダミートレンチゲート電極のうち一部は前記エミッタ層上に設けられたエミッタ電極に電気的に接続され、残部は前記ダイオードのカソード側に電気的に接続された請求項1または2に記載の半導体装置。
- 前記ダミートレンチゲート電極は、n型の半導体で構成され、前記ドリフト層の表面側に設けられた第2ゲートパッドに接続された配線部を有し、
前記ダイオードは、前記配線部の一部に設けられたp型の半導体と前記n型の半導体とのpn接合で構成された請求項1から3のいずれか1項に記載の半導体装置。 - 前記ダイオードは、直列接続された複数のダイオードである請求項1から4のいずれか1項に記載の半導体装置。
- 前記トレンチゲート電極は、抵抗を介して前記ダイオードのアノード側に接続された請求項1から5のいずれか1項に記載の半導体装置。
- 前記トレンチゲート電極は、不純物を含有する半導体で構成され、前記ドリフト層の表面側に設けられた第1ゲートパッドと接続された配線部を有し、
前記抵抗は、前記配線部に設けられた前記トレンチゲート内よりも不純物濃度が低い領域で構成された請求項6に記載の半導体装置。
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US10256331B2 (en) * | 2017-03-03 | 2019-04-09 | Pakal Technologies, Inc. | Insulated gate turn-off device having low capacitance and low saturation current |
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