JP5648191B2 - 高電圧垂直トランジスタのためのセグメントピラーレイアウト - Google Patents
高電圧垂直トランジスタのためのセグメントピラーレイアウト Download PDFInfo
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- H10D84/82—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
- H10D84/83—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
- H10D84/837—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET] comprising vertical IGFETs
- H10D84/839—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET] comprising vertical IGFETs comprising VDMOS
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- H10D62/13—Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
- H10D62/149—Source or drain regions of field-effect devices
- H10D62/151—Source or drain regions of field-effect devices of IGFETs
- H10D62/156—Drain regions of DMOS transistors
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- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/512—Disposition of the gate electrodes, e.g. buried gates
- H10D64/513—Disposition of the gate electrodes, e.g. buried gates within recesses in the substrate, e.g. trench gates, groove gates or buried gates
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Description
前記トランジスタセグメントの各々が、
前記ダイを通って垂直方向に延びる拡張したドレイン領域を含む半導体材料のピラーと、
前記ピラーの対向する側にそれぞれ配置された第1の誘電領域及び第2の誘電領域と、を含み、
前記第1の誘電領域は横方向において前記ピラーにより囲まれ、前記第2の誘電領域は横方向において前記ピラーを囲み、
さらに、前記トランジスタセグメントの各々は、
前記第1の誘電領域及び前記第2の誘電領域のそれぞれに配置された第1のフィールドプレート及び第2のフィールドプレートと、を含み、
前記複数のトランジスタセグメントは、複数のセクションに分けられており、
該複数のセクションにおける第1のセクションは、前記第2の横方向において並列関係に配置されたトランジスタセグメントの第1の行を含み、
前記複数のセクションにおける第2のセクションは、前記第2の横方向において並列関係に配置されたトランジスタセグメントの第2の行を含む、ことを特徴とする。
前記トランジスタセグメントの各々が、
前記ダイを通って垂直方向に延びる拡張したドレイン領域を含む半導体材料のピラーと、
前記ピラーの対向する側にそれぞれ配置された第1の誘電領域及び第2の誘電領域と、を含み、
前記第1の誘電領域は横方向において前記ピラーにより囲まれ、前記第2の誘電領域は横方向において前記ピラーを囲み、
さらに、前記トランジスタセグメントの各々は、
前記第1の誘電領域及び前記第2の誘電領域のそれぞれに配置された第1のフィールドプレート及び第2のフィールドプレートと、を含み、
前記複数のトランジスタセグメントは、複数のセクションに分けられており、
第1のセクションにおけるトランジスタセグメントは、第2のセクションにおけるトランジスタセグメントに対して前記第1の横方向においてシフトされ、
前記第1のセクションの行における前記トランジスタセグメントの各々は、前記第2のセクションにおける1対のトランジスタセグメントにより分離されており、該1対のトランジスタセグメントは、端と端とが接した関係により配置されており、
前記第1のセクション及び前記第2のセクションにおける前記トランジスタセグメントのうち交互に選択されたトランジスタセグメントの前記第2の誘電領域が併合されている、ことを特徴とする。
該半導体ダイを実質的に覆うように設けられた複数のトランジスタセグメントであって、各々が第1の横方向に延びる長さ及び第2の横方向に延びる幅を有し、かつ、前記長さが前記幅の少なくとも20倍以上の大きさとなっている、複数のトランジスタセグメントと、を具備し、
前記トランジスタセグメントの各々が、
前記半導体ダイを通って垂直方向に延びる拡張したドレイン領域を含む半導体材料のピラーであって、前記第1の横方向及び前記第2の横方向に延びて、連続したレーストラック形状のリング又は楕円を形成するピラーと、
前記ピラーの対向する側にそれぞれ配置された第1の誘電領域及び第2の誘電領域と、を含み、
前記第1の誘電領域が横方向において前記ピラーにより囲まれ、前記第2の誘電領域が横方向において前記ピラーを囲み、
さらに、前記トランジスタセグメントの各々が、
前記第1の誘電領域及び前記第2の誘電領域のそれぞれに配置された第1のフィールドプレート及び第2のフィールドプレートと、を含み、
前記複数のトランジスタセグメントが、前記半導体ダイにおける対応するエリアに配置された2つ又はそれ以上のセクションに分割されている、ことを特徴とする。
該半導体ダイにおける第1のエリアに配置されたトランジスタセグメントの第1のセクションと、
前記半導体ダイの前記第1のエリアに隣接した第2のエリアに配置されたトランジスタセグメントの第2のセクションと、を具備し、
前記第1のセクション及び前記第2のセクションにおける前記トランジスタセグメントの各々が、
前記ダイの上面の近くに配置されたソース領域と該ソース領域の下に配置された拡張したドレイン領域とを有する、垂直方向に延びる半導体材料のピラーであって、前記第1の横方向及び前記第2の横方向に延びて、連続したレーストラック状のリング又は楕円を形成するピラーと、
該ピラーの対向する側にそれぞれ配置された第1の誘電領域及び第2の誘電領域と、を含み、
前記第1の誘電領域が横方向において前記ピラーにより囲まれ、前記第2の誘電領域が横方向において前記ピラーを囲み、
さらに、前記第1のセクション及び前記第2のセクションにおける前記トランジスタセグメントの各々は、前記第1の誘電領域及び前記第2の誘電領域のそれぞれに配置された第1のフィールドプレート及び第2のフィールドプレートと、を含み、
前記第1のセクション及び前記第2のセクションにおける隣接するトランジスタセグメントの対の前記第2のフィールドプレートが、それぞれ分離されているか、又は、部分的に合併している、ことを特徴とする。
17 シリコンピラー
18a、18b ゲート部材
19a、19b フィールドプレート
21 半導体ダイ
30a 上側トランジスタセクション
30b 下側トランジスタセクション
32 ダミーシリコンピラー
Claims (11)
- 各々が、ダイ上に設けられ、第1の横方向に延びる長さ及び第2の横方向に延びる幅を備えたレーストラック形状を有する、複数のトランジスタセグメントを具備する垂直トランジスタ装置であって、
前記トランジスタセグメントの各々が、
垂直方向に延びる拡張したドレイン領域の一部を含む半導体材料のピラーと、
前記ピラーの対向する側にそれぞれ配置された第1の誘電領域及び第2の誘電領域と、
を含み、
前記第1の誘電領域は横方向において前記ピラーにより囲まれ、前記第2の誘電領域は横方向において前記ピラーを囲み、
さらに、前記トランジスタセグメントの各々は、
前記第1の誘電領域及び前記第2の誘電領域のそれぞれに配置された第1のフィールドプレート及び第2のフィールドプレートと、を含み、
前記複数のトランジスタセグメントは、複数のセクションに分けられており、
該複数のセクションにおける第1のセクションは、前記第2の横方向において並列関係に配置されたトランジスタセグメントの第1の行を含み、
前記複数のセクションにおける第2のセクションは、前記第2の横方向において並列関係に配置されたトランジスタセグメントの第2の行を含み、前記第1の行の前記トランジスタの前記ピラーが前記第2の行の前記トランジスタの前記ピラーから前記第1の横方向において分離されており、
前記第1のセクションの各トランジスタセグメントの前記第2の誘電領域が、前記第2のセクションの各トランジスタセグメントの前記第2の誘電領域と合体又は重なり合わされており、前記第1のセクションの各トランジスタセグメントの前記第2のフィールドプレートが前記第2のセクションの各トランジスタの前記第2のフィールドプレートと合体されていることを特徴とする装置。 - 前記第1のセクション及び前記第2のセクションの前記合体されるトランジスタセグメントが、前記合体されるトランジタセグメント間に位置する前記半導体材料の少なくとも1つのダミーピラー用のスペースを残している、請求項1に記載の装置。
- 前記第2の誘電領域が、前記第1の横方向の前記トランジスタの各端部に丸みのあるセクションを含んでいる、請求項1に記載の装置。
- 前記第1のフィールドプレート及び前記第2のフィールドプレートが、前記拡張したドレイン領域から完全に絶縁されており、
前記第1のフィールドプレートが横方向において前記ピラーにより囲まれ、前記第2のフィールドプレートが横方向において前記ピラーを囲む、請求項1に記載の装置。 - 前記少なくとも1つのダミーピラーが、前記第1のセクションと前記第2のセクションとを分離する単一のダミーピラーを含む、請求項2に記載の装置。
- 前記単一のダミーピラーが、前記第1の横方向において、前記第1のセクション及び前記第2のセクションにおける各トランジスタセグメントの前記第2の誘電領域の丸みのある端部に隣接する、請求項5に記載の装置。
- 前記少なくとも1つのダミーピラーが複数のダミーピラーを含み、
該複数のダミーピラーの各々が、前記第1のセクション及び前記第2のセクションにおけるトランジスタセグメントの第1及び第2の隣接するペアの丸みのある端部間の中心にそれぞれ配置されている、請求項2に記載の装置。 - 前記第1のセクション及び前記第2のセクションにおける前記トランジスタセグメントの前記長さと前記幅との比が、30〜80の範囲内にある、請求項1に記載の装置。
- 前記第1のセクション及び前記第2のセクションが、各々、前記ダイの幅の全体にわたって前記第2の横方向において延びており、前記第1のセクション及び前記第2のセクションが、連結して、前記ダイの長さの全体にわたって前記第1の横方向において延びている、請求項1に記載の装置。
- 前記ピラーが、更に、前記ダイの上面の近くに配置されたソース領域と、前記拡張したドレイン領域から前記ソース領域を垂直方向に分離するボディ領域と、を含む、請求項1に記載の装置。
- 前記ボディ領域に隣接する前記第1の誘電領域及び前記第2の誘電領域内に配置されたゲートを更に具備し、前記ゲートが、前記ボディ領域、前記第1のフィールドプレート及び前記第2のフィールドプレートから絶縁されている、請求項10に記載の装置。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/707,406 | 2007-02-16 | ||
| US11/707,406 US7557406B2 (en) | 2007-02-16 | 2007-02-16 | Segmented pillar layout for a high-voltage vertical transistor |
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| JP2008029919A Division JP2008205461A (ja) | 2007-02-16 | 2008-02-12 | 高電圧垂直トランジスタのためのセグメントピラーレイアウト |
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| JP2013080984A JP2013080984A (ja) | 2013-05-02 |
| JP5648191B2 true JP5648191B2 (ja) | 2015-01-07 |
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| JP2008029919A Pending JP2008205461A (ja) | 2007-02-16 | 2008-02-12 | 高電圧垂直トランジスタのためのセグメントピラーレイアウト |
| JP2013022106A Expired - Fee Related JP5764846B2 (ja) | 2007-02-16 | 2013-02-07 | 高電圧垂直トランジスタのためのセグメントピラーレイアウト |
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2007
- 2007-02-16 US US11/707,406 patent/US7557406B2/en active Active
- 2007-09-04 EP EP20070253504 patent/EP1959496A3/en not_active Withdrawn
- 2007-09-04 EP EP12180878A patent/EP2549540A3/en not_active Withdrawn
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2008
- 2008-02-12 JP JP2008029919A patent/JP2008205461A/ja active Pending
- 2008-02-18 CN CN201110153406.XA patent/CN102222696B/zh not_active Expired - Fee Related
- 2008-02-18 CN CN2008100807547A patent/CN101246908B/zh not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| EP1959496A2 (en) | 2008-08-20 |
| EP2549540A3 (en) | 2013-02-20 |
| EP1959496A3 (en) | 2009-04-22 |
| US20090273023A1 (en) | 2009-11-05 |
| CN101246908A (zh) | 2008-08-20 |
| US8552493B2 (en) | 2013-10-08 |
| JP2008205461A (ja) | 2008-09-04 |
| US7816731B2 (en) | 2010-10-19 |
| US7557406B2 (en) | 2009-07-07 |
| JP2013080983A (ja) | 2013-05-02 |
| CN101246908B (zh) | 2011-07-20 |
| CN102222696A (zh) | 2011-10-19 |
| EP2549540A2 (en) | 2013-01-23 |
| US20090134457A1 (en) | 2009-05-28 |
| JP5764846B2 (ja) | 2015-08-19 |
| JP2013080984A (ja) | 2013-05-02 |
| US20140042533A1 (en) | 2014-02-13 |
| CN102222696B (zh) | 2014-07-09 |
| US20080197417A1 (en) | 2008-08-21 |
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