JP2015019370A - 逆導通igbtおよびゲートドライバ回路を有する電子回路 - Google Patents
逆導通igbtおよびゲートドライバ回路を有する電子回路 Download PDFInfo
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- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
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- H—ELECTRICITY
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- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/567—Circuits characterised by the use of more than one type of semiconductor device, e.g. BIMOS, composite devices such as IGBT
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- 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
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
- H01L29/7393—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET
- H01L29/7395—Vertical transistors, e.g. vertical IGBT
- H01L29/7396—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions
- H01L29/7397—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions and a gate structure lying on a slanted or vertical surface or formed in a groove, e.g. trench gate IGBT
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- H—ELECTRICITY
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Abstract
Description
101 第1の面
102 第2の面
110 ソースゾーン
115 ボディゾーン
116 アノードゾーン
117 接触ゾーン
118 浮遊終端ゾーン
119 浮遊ゾーン
120 半導体層
121 ドリフトゾーン
128 フィールドストップ層
130、130a、130b コレクタ層
205 誘電体ライナ
210 埋め込み電極構造
220 誘電体構造
221 第1の誘電体構造
302 トレンチ接点
305 配線構造
310 エミッタ電極構造
311 界面層
312 本層
320 コレクタ電極構造
410a IGBT領域
410b ダイオード領域
410c フィールド領域
420 スペーサ領域
490 エッジ領域
500 ゲートドライバ回路
510 制御回路
520、520a、520b ドライバ回路
521 ハイ側スイッチ
522a、522b ロー側スイッチ
530 電圧レギュレータ回路
531、532a、532b ドライバ
600 RC−IGBT
610 IGBT
620 フリーホイールダイオード
700 電子回路
702 ハーフブリッジ回路
704 IGBTモジュール
900 誘導負荷
Claims (20)
- 逆導通IGBTであって、第1のオフ状態ゲート電圧において第1のダイオードエミッタ効率を有し、第2のオフ状態ゲート電圧において第2の、異なるダイオードエミッタ効率を有する逆導通IGBTと、
前記逆導通IGBTのゲート端子と電気的に結合されたドライバ端子を備えたドライバ回路であって、前記ドライバ端子において、第1の状態ではオン状態ゲート電圧を供給し、第2の状態では前記第1のオフ状態ゲート電圧を供給し、第3の状態では前記第2のオフ状態ゲート電圧を供給するように構成された前記ドライバ回路と、
を備える電子回路。 - 前記ドライバ回路は、前記オン状態ゲート電圧を、第1の電圧端子に印加された第1の電圧から導出し、前記第1のオフ状態ゲート電圧を、第2の電圧端子に印加された第2の電圧から導出するように構成されている、請求項1に記載の電子回路。
- 前記ドライバ回路は、前記第2のオフ状態ゲート電圧を、第3の電圧端子に印加された第3の電圧から導出するように構成されている、請求項2に記載の電子回路。
- 前記第1および第2の電圧から前記第2のオフ状態ゲート電圧を導出するように構成された電圧レギュレータ回路を備える、請求項2に記載の電子回路。
- 前記第2のオフ状態ゲート電圧は、前記第1のオフ状態ゲート電圧との間に、少なくとも0.5Vの差がある、請求項1に記載の電子回路。
- 前記第2のダイオードエミッタ効率は、第1のダイオードエミッタ効率との間に、少なくとも5%の差がある、請求項1に記載の電子回路。
- 前記ドライバ回路が前記第2の状態と前記第3の状態との間で変化するように前記ドライバ回路を制御するように構成された制御回路をさらに備える、請求項1に記載の電子回路。
- 前記制御回路は、前記制御回路に印加された制御信号に対する応答として、前記ドライバ回路が前記第2の状態と前記第3の状態との間で変化するように前記ドライバ回路を制御する、請求項7に記載の電子回路。
- 前記制御回路は、内部状態の変化に対する応答として、前記ドライバ回路が前記第2の状態と前記第3の状態との間で変化するように前記ドライバ回路を制御する、請求項7に記載の電子回路。
- 前記逆導通IGBTは、前記オン状態ゲート電圧においてボディゾーン内に第1の反転層を形成し、前記第1のオフ状態ゲート電圧においてドリフトゾーン内に第2の反転層を形成し、前記第2のオフ状態ゲート電圧において、前記ドリフトゾーン内に、反転層を形成しないか、前記第2の反転層とは異なる第3の反転層を形成するように適合されている、請求項1に記載の電子回路。
- 前記逆導通IGBTは、第1の面から半導体部分のドリフトゾーン内に延びるゲート電極を備えており、前記ドリフトゾーンは、第1の導電型を有し、第2の、逆の導電型のボディゾーンが、前記第1の面と前記ドリフトゾーンとの間に配列され、誘電体ライナが、前記ゲート電極と前記半導体部分とを隔てている、請求項1に記載の電子回路。
- 前記半導体部分は、前記第2の導電型の浮遊ゾーンを含み、前記浮遊ゾーンは、前記第1の状態と前記第3の状態との間を浮遊し、前記第2の反転層は、前記第2の状態において、前記ボディゾーンと前記浮遊ゾーンとをつなぐ、請求項11に記載の電子回路。
- トレンチ接点が、前記第1の面から前記ボディゾーン内に延びる、請求項11に記載の電子回路。
- 前記ボディゾーンと、前記ボディゾーンに電気的に接続された電極構造との間に界面層が設けられ、前記界面層は接点材料で作られ、前記接点材料と前記ボディゾーンとの間の接触抵抗が、前記ボディゾーン内の不純物濃度が減るにつれて増える、請求項11に記載の電子回路。
- 前記接点材料は、TiW、TiN、TaN、およびTaからなる群から選択される、請求項14に記載の電子回路。
- 請求項1に記載の電子回路を少なくとも2つ備え、前記逆導通IGBTが電気的に並列に配列されているハーフブリッジ回路。
- 請求項1に記載の電子回路を少なくとも2つ備えるIGBTモジュール。
- IGBT用のゲート信号をドライブするように構成され、ドライバ端子を備えるドライバ回路であって、前記ドライバ回路は、前記ドライバ端子において、第1の状態ではオン状態ゲート電圧を供給し、第2の状態では第1のオフ状態ゲート電圧を供給し、第3の状態では第2のオフ状態ゲート電圧を供給するように構成され、前記第2のオフ状態ゲート電圧と前記第1のオフ状態ゲート電圧との間に差がある、前記ドライバ回路と、
前記ドライバ回路と電気的に結合され、前記ドライバ回路が前記第2の状態と前記第3の状態との間で変化するように前記ドライバ回路を制御するように構成された制御回路と、
を備えるゲートドライバ回路。 - 逆導通IGBTを動作させる方法であって、
第1の状態において、前記逆導通IGBTのゲート端子にオン状態ゲート電圧を供給するステップと、
第2の状態において、前記逆導通IGBTの前記ゲート端子に第1のオフ状態ゲート電圧を供給するステップと、
第3の状態において、前記逆導通IGBTの前記ゲート端子に第2のオフ状態ゲート電圧を供給するステップと、を含み、
前記逆導通IGBTは、前記第1のオフ状態ゲート電圧において、第1のダイオードエミッタ効率を有し、前記第2のオフ状態ゲート電圧において、第2の、異なるダイオードエミッタ効率を有する、
方法。 - 前記第2のダイオードエミッタ効率は、前記第1のダイオードエミッタ効率との間に少なくとも5%の差がある、請求項19に記載の方法。
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Application Number | Priority Date | Filing Date | Title |
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US13/941,797 | 2013-07-15 | ||
US13/941,797 US9337827B2 (en) | 2013-07-15 | 2013-07-15 | Electronic circuit with a reverse-conducting IGBT and gate driver circuit |
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JP2015019370A true JP2015019370A (ja) | 2015-01-29 |
JP5882407B2 JP5882407B2 (ja) | 2016-03-09 |
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US (1) | US9337827B2 (ja) |
JP (1) | JP5882407B2 (ja) |
KR (1) | KR101655519B1 (ja) |
CN (1) | CN104300951A (ja) |
DE (1) | DE102014109475B4 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016162855A (ja) * | 2015-02-27 | 2016-09-05 | 株式会社日立製作所 | 半導体装置およびそれを用いた電力変換装置 |
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DE102014109475B4 (de) | 2018-05-09 |
KR101655519B1 (ko) | 2016-09-07 |
KR20150008816A (ko) | 2015-01-23 |
CN104300951A (zh) | 2015-01-21 |
US20150015309A1 (en) | 2015-01-15 |
US9337827B2 (en) | 2016-05-10 |
DE102014109475A1 (de) | 2015-01-15 |
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