JP5286701B2 - 半導体装置および半導体装置の製造方法 - Google Patents
半導体装置および半導体装置の製造方法 Download PDFInfo
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Description
図1は第1実施形態の半導体装置の構成を示す概略断面図である。この図に示す半導体装置1aは、シリコン(Si)からなる半導体基板3の表面側が、素子分離5で分離され、分離されたアクティブ領域7上を横切る状態でゲート電極9を設けてなる。また、ゲート電極9の両側における半導体基板3の表面が掘り下げられている。この掘り下げたリセス部分には、半導体基板3とは格子定数が異なる半導体材料がエピタキシャル成長層11として設けられ、不純物が拡散されている。また、ゲート電極9に対してエピタキシャル成長層11の外側には、半導体層3の表面層に不純物を拡散してなる基板拡散層13が設けられている。
図6は、第2実施形態の半導体装置の構成を示す概略断面図である。この図に示す半導体装置1bが、図1を用いて説明した第1実施形態の半導体装置1aと異なるところは、ソース/ドレイン領域15を構成する基板拡散層13の深さが、エピタキシャル成長層11の深さよりも深いところにある。他の構成は第1実施形態と同様であることとする。
図7は、第3実施形態の半導体装置の構成を示す概略断面図である。この図に示す半導体装置1cが、図1を用いて説明した第1実施形態の半導体装置1aと異なるところは、ソース/ドレイン領域15を構成する基板拡散層13の表面高さが、ゲート電極9下の半導体基板3の表面高さよりも低いところにある。他の構成は第1実施形態と同様であることとする。
図8は、第4実施形態の半導体装置の構成を示す概略断面図である。この図に示す半導体装置61aは、特にp型のMOSトランジスタTrを備えた構成であることとする。そして、この半導体装置61aが、図1を用いて説明した第1実施形態の半導体装置1aと異なるところは、ソース/ドレイン領域15の一方のみがエピタキシャル成長層11を用いて構成されており、ソース/ドレイン領域15の他方は基板拡散層13のみを用いて構成されているところにある。また、基板拡散層13に隣接させて、ソース/ドレイン領域15とは逆導電型(n型)の拡散層(逆導電型拡散層63)が設けられている。以下、第1実施形態と同様の構成に付いての重複する説明は省略する。
図10は、第5実施形態の半導体装置の構成を示す概略断面図である。この図に示す半導体装置61bが、第4実施形態の半導体装置61aと異なるところは、ソース/ドレイン領域15の一方が、エピタキシャル成長層11と共に基板拡散層13を用いて構成されているところにあり、他の構成は同様であることとする。
Claims (5)
- 半導体基板上に設けられたゲート電極と、前記ゲート電極両脇に不純物を導入して設けられたソース/ドレイン領域とを備えた半導体装置において、
前記ソース/ドレイン領域は、
前記ゲート電極脇における前記半導体基板を掘り下げた位置に当該半導体基板とは格子定数が異なる半導体材料をエピタキシャル成長させてなるエピタキシャル成長層と、
前記半導体基板の表面層に設けた基板拡散層とで構成され、
前記基板拡散層は前記ゲート電極に対して前記エピタキシャル成長層の外側に設けられ、
前記基板拡散層の深さが、前記エピタキシャル成長層の深さよりも深い
ことを特徴とする半導体装置。 - 請求項1記載の半導体装置において、
前記エピタキシャル成長層は前記ゲート電極の両脇に設けられた
ことを特徴とする半導体装置。 - 請求項2記載の半導体装置において、
前記エピタキシャル成長層は、チャネル長方向に所定幅で設けられている
ことを特徴とする半導体装置。 - 請求項2記載の半導体装置において、
前記基板拡散層の表面は、前記ゲート電極の直下における前記半導体基板の表面よりも低い
ことを特徴とする半導体装置。 - 半導体基板上にゲート電極を形成する第1工程と、
マスクパターン上からのエッチングにより、前記ゲート電極脇における前記半導体基板の表面層を掘り下げる第2工程と、
前記掘り下げられた半導体基板の表面に当該半導体基板とは格子定数が異なる半導体材料からなるエピタキシャル成長層を形成する第3工程と、
前記マスクパターンを除去して前記半導体基板の表面を露出させた後、前記エピタキシャル成長層と前記半導体基板の表面層とに不純物を拡散させることにより、不純物が拡散された当該エピタキシャル成長層と当該半導体基板の表面層に不純物を拡散させてなる基板拡散層とで構成されたソース/ドレイン領域を形成する第4工程とを行い、
前記第4工程では、前記基板拡散層を、前記ゲート電極に対して前記エピタキシャル成長層の外側に、かつ、前記基板拡散層の深さが前記エピタキシャル成長層の深さよりも深くなるように設ける
ことを特徴とする半導体装置の製造方法。
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
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JP2007169023A JP5286701B2 (ja) | 2007-06-27 | 2007-06-27 | 半導体装置および半導体装置の製造方法 |
TW097120490A TWI460859B (zh) | 2007-06-27 | 2008-06-02 | 半導體裝置及製造半導體裝置之方法 |
US12/137,112 US8039901B2 (en) | 2007-06-27 | 2008-06-11 | Epitaxial source/drain transistor |
KR1020080060865A KR101475364B1 (ko) | 2007-06-27 | 2008-06-26 | 반도체 장치 및 반도체 장치의 제조 방법 |
CN2008101317526A CN101335299B (zh) | 2007-06-27 | 2008-06-27 | 半导体装置及其制造方法 |
US13/238,580 US8486793B2 (en) | 2007-06-27 | 2011-09-21 | Method for manufacturing semiconductor device with semiconductor materials with different lattice constants |
US13/913,012 US9070704B2 (en) | 2007-06-27 | 2013-06-07 | Method for manufacturing semiconductor device with recess, epitaxial growth and diffusion |
US14/662,351 US9356146B2 (en) | 2007-06-27 | 2015-03-19 | Semiconductor device with recess, epitaxial source/drain region and diffuson |
US15/136,091 US20160240674A1 (en) | 2007-06-27 | 2016-04-22 | Method for manufacturing semiconductor device with recess, epitaxial growth and diffusion |
US17/493,392 US20220029018A1 (en) | 2007-06-27 | 2021-10-04 | Method for manufacturing semiconductor device with recess, epitaxial growth and diffusion |
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JP2007169023A JP5286701B2 (ja) | 2007-06-27 | 2007-06-27 | 半導体装置および半導体装置の製造方法 |
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JP (1) | JP5286701B2 (ja) |
KR (1) | KR101475364B1 (ja) |
CN (1) | CN101335299B (ja) |
TW (1) | TWI460859B (ja) |
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JP5141686B2 (ja) * | 2007-07-12 | 2013-02-13 | 富士通セミコンダクター株式会社 | 半導体デバイス及び半導体デバイスの製造方法 |
JP5178103B2 (ja) * | 2007-09-12 | 2013-04-10 | 株式会社東芝 | 半導体装置およびその製造方法 |
US8106456B2 (en) * | 2009-07-29 | 2012-01-31 | International Business Machines Corporation | SOI transistors having an embedded extension region to improve extension resistance and channel strain characteristics |
JP2011054740A (ja) * | 2009-09-01 | 2011-03-17 | Toshiba Corp | 半導体装置及びその製造方法 |
US20110049582A1 (en) * | 2009-09-03 | 2011-03-03 | International Business Machines Corporation | Asymmetric source and drain stressor regions |
JP5423269B2 (ja) * | 2009-09-15 | 2014-02-19 | 富士通セミコンダクター株式会社 | 半導体装置とその製造方法 |
US8816409B2 (en) | 2010-07-15 | 2014-08-26 | United Microelectronics Corp. | Metal-oxide semiconductor transistor |
TWI552230B (zh) * | 2010-07-15 | 2016-10-01 | 聯華電子股份有限公司 | 金氧半導體電晶體及其製作方法 |
KR101675388B1 (ko) | 2010-08-25 | 2016-11-11 | 삼성전자 주식회사 | 반도체 장치의 제조 방법 |
KR101776926B1 (ko) | 2010-09-07 | 2017-09-08 | 삼성전자주식회사 | 반도체 소자 및 그 제조 방법 |
CN102487008A (zh) * | 2010-12-01 | 2012-06-06 | 中芯国际集成电路制造(北京)有限公司 | 半导体器件及其形成方法 |
CN102646573B (zh) * | 2011-02-17 | 2014-10-22 | 中芯国际集成电路制造(上海)有限公司 | 半导体器件及其制作方法 |
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CN101335299B (zh) | 2010-06-23 |
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US8486793B2 (en) | 2013-07-16 |
US8039901B2 (en) | 2011-10-18 |
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US20130295741A1 (en) | 2013-11-07 |
KR101475364B1 (ko) | 2014-12-22 |
CN101335299A (zh) | 2008-12-31 |
TW200908325A (en) | 2009-02-16 |
US9070704B2 (en) | 2015-06-30 |
US20160240674A1 (en) | 2016-08-18 |
JP2009010111A (ja) | 2009-01-15 |
US20150194526A1 (en) | 2015-07-09 |
US20090001420A1 (en) | 2009-01-01 |
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