JP6670319B2 - 電子及び正孔移動度向上のためのデュアル・フィン集積 - Google Patents
電子及び正孔移動度向上のためのデュアル・フィン集積 Download PDFInfo
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- JP6670319B2 JP6670319B2 JP2017542434A JP2017542434A JP6670319B2 JP 6670319 B2 JP6670319 B2 JP 6670319B2 JP 2017542434 A JP2017542434 A JP 2017542434A JP 2017542434 A JP2017542434 A JP 2017542434A JP 6670319 B2 JP6670319 B2 JP 6670319B2
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- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Thin Film Transistor (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Description
20:ソース
25:ドレイン
30:ゲート
50:基板
100:FinFETデバイス
200:フィン構造体
205、210、215:電流矢印
300:基板
302:フィン材料、半導体層
304:フィン・ハードマスク
306:犠牲層(犠牲マンドレル)
308:スペーサ
310、320:マスク
311:スペーサ・ピッチ
313:スペーサ幅
315:垂直フィン
325:テーパ付きフィン
360:NFET
365:PFET
380:デュアル・フィン構造体
420:テーパ付き側壁
500:半導体デバイスを形成する方法
600:半導体デバイス・デュアル・フィン集積を形成する方法
700:コンピュータ
Claims (17)
- 半導体デバイスを形成する方法であって、
複数の犠牲マンドレルを、半導体層の上に堆積されたハードマスク層の上に形成することと、
複数のスペーサを前記複数の犠牲マンドレルの側壁上に形成することと、
前記複数の犠牲マンドレルを除去して前記複数のスペーサを残すことと、
第1のマスキング・プロセスを行って、前記複数のスペーサの第1の組を露出したまま、前記複数のスペーサの第2の組を保護することと、
前記第1のマスキング・プロセスに応じて、前記複数のスペーサの前記第1の組を用いて第1のフィン・エッチング・プロセスを行って、正チャネル電界効果トランジスタ(PFET)デバイスを構成する垂直側壁プロファイルを有するフィンの第1の組を前記半導体層内に形成することと、
前記第1のマスキング・プロセスの第1のマスクを除去して、前記複数のスペーサの前記第2の組を露出することと、
第2のマスキング・プロセスを行って、前記複数のスペーサの前記第2の組を露出したまま、前記複数のスペーサの前記第1の組及び前記フィンの第1の組を保護することと、
前記第2のマスキング・プロセスに応じて、前記複数のスペーサの第2の組を用いて第2のフィン・エッチング・プロセスを行って、負チャネル電界効果トランジスタ(NFET)デバイスを構成する台形側壁プロファイルを有するフィンの第2の組を前記半導体層内に形成することと、
を含む、方法。 - 前記第1のマスキング・プロセス中に、前記第1のマスクが前記複数のスペーサの前記第2の組を覆う、請求項1に記載の方法。
- 前記第1のマスクが酸化物である、請求項2に記載の方法。
- 前記第2のマスキング・プロセス中に、第2のマスクが前記複数のスペーサの前記第1の組を覆う、請求項1に記載の方法。
- 前記第2のマスクが酸化物である、請求項4に記載の方法。
- 前記複数のスペーサは、酸化物及び窒化物の少なくとも1つを含む、請求項1に記載の方法。
- 前記半導体層は、シリコン及びゲルマニウムの少なくとも1つを含む、請求項1に記載の方法。
- ゲート電極が、前記フィンの第1の組及び前記フィンの第2の組の上に形成される、請求項1に記載の方法。
- 前記フィンの第2の組の底部幅が、前記フィンの第2の組の上部幅の少なくとも2倍である、請求項1に記載の方法。
- 前記フィンの第2の組の高さが、前記フィンの第1の組の高さとほぼ等しい、請求項1に記載の方法。
- 集積回路が、前記フィンの第1の組及び前記フィンの第2の組を含む、請求項1に記載の方法。
- 個々のマイクロプロセッサが、前記フィンの第1の組及び前記フィンの第2の組を有する前記集積回路を含む、請求項11に記載の方法。
- 半導体デバイスを形成する方法であって、
基板上に負チャネル電界効果トランジスタ(NFET)デバイスを構成する台形形状フィンを形成することであって、前記台形形状フィンの台形形状が電子移動度を向上させることと、
前記基板上に正チャネル電界効果トランジスタ(PFET)デバイスを構成する垂直形状フィンを形成することであって、前記垂直形状フィンの直線的な垂直形状が正孔移動度を向上させ、前記台形形状フィンが前記垂直形状フィンより大きい底部を有することと、
を含み、
前記台形形状フィン及び前記垂直形状フィンによって集積回路が形成される、
方法。 - 前記集積回路がマイクロプロセッサである、請求項13に記載の方法。
- 前記台形形状フィン及び前記垂直形状フィンの上にゲート電極を形成することをさらに含む、請求項13に記載の方法。
- 半導体デバイスであって、
基板上に形成された負チャネル電界効果トランジスタ(NFET)デバイスを構成する台形形状フィンであって、前記台形形状フィンの台形形状が電子移動度を向上させる、台形形状フィンと、
前記基板上に形成された正チャネル電界効果トランジスタ(PFET)デバイスを構成する垂直形状フィンであって、前記垂直形状フィンの直線的な垂直形状が正孔移動度を向上させ、前記台形形状フィンが前記垂直形状フィンより大きい底部を有する、垂直形状フィンと、
を備え、
前記台形形状フィン及び前記垂直形状フィンが、集積回路内で構成要素として一緒に形成される、
半導体デバイス。 - 前記台形形状フィン及び前記垂直形状フィンの両方を有する前記集積回路が、マイクロプロセッサである、請求項16に記載の半導体デバイス。
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CN104078366B (zh) * | 2014-07-16 | 2018-01-26 | 上海集成电路研发中心有限公司 | 双重图形化鳍式晶体管的鳍结构制造方法 |
US9437445B1 (en) * | 2015-02-24 | 2016-09-06 | International Business Machines Corporation | Dual fin integration for electron and hole mobility enhancement |
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CN107251204B (zh) | 2021-09-03 |
US20160336322A1 (en) | 2016-11-17 |
US20160336236A1 (en) | 2016-11-17 |
US9704867B2 (en) | 2017-07-11 |
GB2549685A (en) | 2017-10-25 |
WO2016135588A1 (en) | 2016-09-01 |
US9859281B2 (en) | 2018-01-02 |
JP2018510503A (ja) | 2018-04-12 |
DE112016000407B4 (de) | 2024-07-25 |
US9437445B1 (en) | 2016-09-06 |
GB201713201D0 (en) | 2017-10-04 |
US20160336321A1 (en) | 2016-11-17 |
GB2549685B (en) | 2020-12-09 |
US9728537B2 (en) | 2017-08-08 |
US20160247685A1 (en) | 2016-08-25 |
DE112016000407T5 (de) | 2017-10-19 |
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