KR100865548B1 - 반도체 메모리장치의 제조방법 - Google Patents
반도체 메모리장치의 제조방법 Download PDFInfo
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- KR100865548B1 KR100865548B1 KR1020060137138A KR20060137138A KR100865548B1 KR 100865548 B1 KR100865548 B1 KR 100865548B1 KR 1020060137138 A KR1020060137138 A KR 1020060137138A KR 20060137138 A KR20060137138 A KR 20060137138A KR 100865548 B1 KR100865548 B1 KR 100865548B1
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
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- H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
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- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
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- H10D62/299—Channel regions of field-effect devices of FETs of IGFETs having lateral doping variations
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- H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
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Abstract
Description
Claims (14)
- 반도체기판에 배치되는 제1 도전형의 웰과,상기 웰에 배치되며, 상기 웰의 가장자리로부터 서로 다른 거리를 두고 배치되는 제1 트랜지스터 및 제2 트랜지스터를 구비하며, 상기 제1 및 제2 트랜지스터가 하나의 비트라인 쌍에 각각 접속되어 서로 대칭을 이루며 구동되는 반도체 메모리장치의 제조방법에 있어서,상기 반도체기판 상에, 상기 웰이 형성될 영역을 한정하는 마스크 패턴을 형성하는 단계; 및상기 반도체기판의 노출된 영역에 4.4° ∼ 7°의 틸트(tilt) 각도로 불순물 이온을 주입하는 단계를 포함하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 제1항에 있어서,상기 마스크 패턴은 1.7㎛의 두께로 형성하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 삭제
- 제1항에 있어서,상기 웰은 NMOS 트랜지스터를 형성하기 위한 P웰이고,상기 불순물이온을 주입하는 단계에서는 11B 이온을, 1 ×1013원자/㎠ ∼ 2 × 1013원자/㎠의 도우즈와 250 ∼ 350KeV의 에너지로 주입하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 제1항에 있어서,상기 웰은 PMOS 트랜지스터를 형성하기 위한 N웰이고,상기 불순물이온을 주입하는 단계에서는 31P 이온을 1 ×1013원자/㎠ ∼ 2 × 1013원자/㎠ 정도의 도우즈와, 1,000 ∼ 1,200KeV 정도의 에너지로 주입하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 반도체기판에 배치되는 제1 도전형의 웰과,상기 웰에 배치되며, 상기 웰의 가장자리로부터 서로 다른 거리를 두고 배치되는 제1 트랜지스터 및 제2 트랜지스터를 구비하며, 상기 제1 및 제2 트랜지스터가 하나의 비트라인 쌍에 각각 접속되어 서로 대칭을 이루며 구동되는 반도체 메모리장치의 제조방법에 있어서,상기 반도체기판 상에, 소자의 필드방지(field stop)용 불순물층이 형성될 영역을 한정하는 마스크 패턴을 형성하는 단계; 및상기 반도체기판의 노출된 영역에 4.4° ∼ 7°의 틸트(tilt) 각도로 불순물 이온을 주입하는 단계를 포함하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 제6항에 있어서,상기 마스크 패턴은 NMOS 트랜지스터의 필드방지용 불순물층이 형성될 영역을 노출시키도록 형성하며,상기 불순물이온을 주입하는 단계에서는 11B이온을 0.5 ×1013원자/㎠ ∼ 1 × 1013원자/㎠ 정도의 도우즈와, 70 ∼ 120KeV의 에너지로 주입하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 제6항에 있어서,상기 마스크 패턴은 PMOS 트랜지스터의 필드방지용 불순물층이 형성될 영역을 노출시키도록 형성하며,상기 불순물이온을 주입하는 단계에서는 31P이온을 0.8 ×1012원자/㎠ ∼ 1.2 × 1012원자/㎠ 정도의 도우즈와, 200 ∼ 300KeV 정도의 에너지로 주입하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 반도체기판에 배치되는 제1 도전형의 웰과,상기 웰에 배치되며, 상기 웰의 가장자리로부터 서로 다른 거리를 두고 배치되는 제1 트랜지스터 및 제2 트랜지스터를 구비하며, 상기 제1 및 제2 트랜지스터가 하나의 비트라인 쌍에 각각 접속되어 서로 대칭을 이루며 구동되는 반도체 메모리장치의 제조방법에 있어서,반도체기판 상에, 소자의 펀치쓰루(punch through)를 억제하기 위한 불순물층이 형성될 영역을 한정하는 마스크 패턴을 형성하는 단계; 및상기 반도체기판의 한정된 영역에 4.4° ∼ 7°의 틸트(tilt) 각도로 불순물이온을 주입하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 제9항에 있어서,상기 마스크 패턴은 NMOS 트랜지스터의 펀치쓰루를 억제하기 위한 불순물층이 형성될 영역을 노출시키도록 형성하며,상기 불순물이온을 주입하는 단계에서, 11B 이온을 0.5 ×1013원자/㎠ ∼ 1 × 1013원자/㎠ 정도의 도우즈와, 30 ∼ 80KeV 정도의 에너지로 주입하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 제9항에 있어서,상기 마스크 패턴은 PMOS 트랜지스터의 펀치쓰루를 억제하기 위한 불순물층이 형성될 영역을 노출시키도록 형성하며,상기 불순물이온을 주입하는 단계에서, 비소(As75)를 9.4 × 1012원자/㎠의 도우즈와, 150KeV의 에너지로 주입하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 반도체기판에 배치되는 제1 도전형의 웰과,상기 웰에 배치되며, 상기 웰의 가장자리로부터 서로 다른 거리를 두고 배치되는 제1 트랜지스터 및 제2 트랜지스터를 구비하며, 상기 제1 및 제2 트랜지스터가 하나의 비트라인 쌍에 각각 접속되어 서로 대칭을 이루며 구동되는 반도체 메모리장치의 제조방법에 있어서,반도체기판 상에, 셀의 문턱전압을 조절하기 위한 이온주입이 이루어질 영역을 한정하는 마스크 패턴을 형성하는 단계; 및상기 반도체기판의 한정된 영역에 4.4° ∼ 7°의 틸트(tilt) 각도로 불순물이온을 주입하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 제12항에 있어서,상기 마스크 패턴은 NMOS 트랜지스터의 문턱전압 조절용 불순물층이 형성될 영역을 노출시키도록 형성하며,상기 불순물이온을 주입하는 단계에서, 49BF2을 10 ∼ 40eV의 에너지와, 1.0 ×1013원자/㎠ ∼ 3 × 1013원자/㎠ 의 도우즈로 주입하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
- 제12항에 있어서,상기 마스크 패턴은 PMOS 트랜지스터의 문턱전압 조절용 불순물층이 형성될 영역을 노출시키도록 형성하며,상기 불순물이온을 주입하는 단계에서, 31P 이온을 10 ∼ 40eV의 에너지와, 1.0 ×1012원자/㎠ ∼ 35 × 1012원자/㎠ 의 도우즈로 주입하는 것을 특징으로 하는 반도체 메모리장치의 제조방법.
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KR1020060137138A KR100865548B1 (ko) | 2006-12-28 | 2006-12-28 | 반도체 메모리장치의 제조방법 |
US11/757,323 US7981782B2 (en) | 2006-12-28 | 2007-06-01 | Method of fabricating a semiconductor device including ion implantation at a tilt angle in exposed regions |
TW096124573A TWI451481B (zh) | 2006-12-28 | 2007-07-06 | 離子佈值方法及半導體元件之製造方法 |
CN2007101499464A CN101211766B (zh) | 2006-12-28 | 2007-10-08 | 离子注入方法及半导体器件的制造方法 |
US13/186,298 US20110275203A1 (en) | 2006-12-28 | 2011-07-19 | Method of fabricating a semiconductor device including ion implantation at a tilt angle in exposed regions |
US13/186,309 US20110275204A1 (en) | 2006-12-28 | 2011-07-19 | Method of fabricating a semiconductor device including ion implantation at a tilt angle in exposed regions |
US13/186,324 US20120015510A1 (en) | 2006-12-28 | 2011-07-19 | Method of fabricating a semiconductor device including ion implantation at a tilt angle in exposed regions |
US13/186,345 US20110275205A1 (en) | 2006-12-28 | 2011-07-19 | Method of fabricating a semiconductor device including ion implantation at a tilt angle in exposed regions |
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JP2009218580A (ja) * | 2008-03-06 | 2009-09-24 | Toshiba Corp | 2方向ハロ注入 |
CN102117742B (zh) * | 2010-01-05 | 2013-03-13 | 上海华虹Nec电子有限公司 | 增强斜角离子注入阻挡能力的方法 |
TWI556321B (zh) * | 2014-04-23 | 2016-11-01 | 穩懋半導體股份有限公司 | 高電子遷移率電晶體植入硼隔離結構之製程方法 |
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2006
- 2006-12-28 KR KR1020060137138A patent/KR100865548B1/ko not_active Expired - Fee Related
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2007
- 2007-06-01 US US11/757,323 patent/US7981782B2/en not_active Expired - Fee Related
- 2007-07-06 TW TW096124573A patent/TWI451481B/zh not_active IP Right Cessation
- 2007-10-08 CN CN2007101499464A patent/CN101211766B/zh not_active Expired - Fee Related
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2011
- 2011-07-19 US US13/186,309 patent/US20110275204A1/en not_active Abandoned
- 2011-07-19 US US13/186,298 patent/US20110275203A1/en not_active Abandoned
- 2011-07-19 US US13/186,345 patent/US20110275205A1/en not_active Abandoned
- 2011-07-19 US US13/186,324 patent/US20120015510A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005026644A (ja) | 2003-06-13 | 2005-01-27 | Siltronic Japan Corp | Soi基板と半導体基板及びその製造方法 |
KR20050071028A (ko) * | 2003-12-31 | 2005-07-07 | 동부아남반도체 주식회사 | 모스 트랜지스터의 제조 방법 |
KR20060114399A (ko) * | 2005-04-29 | 2006-11-06 | 매그나칩 반도체 유한회사 | Cmos 이미지센서의 드라이브 트랜지스터 형성 방법 |
Also Published As
Publication number | Publication date |
---|---|
CN101211766B (zh) | 2012-01-25 |
US20110275205A1 (en) | 2011-11-10 |
US20120015510A1 (en) | 2012-01-19 |
KR20080061931A (ko) | 2008-07-03 |
US20110275204A1 (en) | 2011-11-10 |
CN101211766A (zh) | 2008-07-02 |
US7981782B2 (en) | 2011-07-19 |
TWI451481B (zh) | 2014-09-01 |
US20080160730A1 (en) | 2008-07-03 |
US20110275203A1 (en) | 2011-11-10 |
TW200828421A (en) | 2008-07-01 |
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