KR101442177B1 - 커패시터 없는 1-트랜지스터 메모리 셀을 갖는 반도체소자의 제조방법들 - Google Patents
커패시터 없는 1-트랜지스터 메모리 셀을 갖는 반도체소자의 제조방법들 Download PDFInfo
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- KR101442177B1 KR101442177B1 KR1020080129318A KR20080129318A KR101442177B1 KR 101442177 B1 KR101442177 B1 KR 101442177B1 KR 1020080129318 A KR1020080129318 A KR 1020080129318A KR 20080129318 A KR20080129318 A KR 20080129318A KR 101442177 B1 KR101442177 B1 KR 101442177B1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B99/00—Subject matter not provided for in other groups of this subclass
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/711—Insulated-gate field-effect transistors [IGFET] having floating bodies
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/01—Manufacture or treatment
- H10B12/09—Manufacture or treatment with simultaneous manufacture of the peripheral circuit region and memory cells
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/20—DRAM devices comprising floating-body transistors, e.g. floating-body cells
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Abstract
Description
Claims (10)
- 기판의 저면 절연막 상에 제1 플로팅 바디 패턴을 형성하고,상기 제1 플로팅 바디 패턴의 상부를 가로지르며 상기 제1 플로팅 바디 패턴의 측벽들을 덮는 제1 게이트 패턴을 형성하고,상기 제1 게이트 패턴 양 옆의 상기 제1 플로팅 바디 패턴을 부분 식각하되, 상기 제1 플로팅 바디 패턴은 상기 부분 식각된 영역들 사이에서 상기 부분 식각된 영역들 보다 상대적으로 돌출된 부분을 갖고,상기 제1 플로팅 바디 패턴의 상기 부분 식각된 영역들 내에 제1 불순물 영역들을 형성하고,상기 제1 플로팅 바디 패턴을 형성하는 동안에, 상기 절연막 상에 상기 제1 플로팅 바디 패턴과 이격된 제2 플로팅 바디 패턴을 형성하고,상기 제1 게이트 패턴을 형성하는 동안에, 상기 제2 플로팅 바디 패턴의 상부를 가로지르는 제2 게이트 패턴을 형성하고,상기 제2 플로팅 바디 패턴의 측벽들을 둘러싸는 소자분리 패턴을 형성하는 것을 포함하는 반도체소자의 제조방법.
- 삭제
- 삭제
- 제 1 항에 있어서,상기 소자분리 패턴을 형성하는 것은상기 제1 및 제2 플로팅 바디 패턴들을 갖는 기판 상에 소자분리막을 형성하되, 상기 소자분리막은 절연성 라이너 및 상기 절연성 라이너 상의 격리 절연막을 포함하고, 상기 절연성 라이너는 상기 저면 절연막 및 상기 격리 절연막에 대하여 식각 선택비를 갖는 물질막으로 형성하고,상기 제1 플로팅 바디 패턴의 상부면 및 측벽을 노출시키도록, 상기 제1 플로팅 바디 패턴에 인접한 상기 격리 절연막 및 상기 절연성 라이너를 차례로 식각하는 것을 포함하는 반도체소자의 제조방법.
- 제 1 항에 있어서,상기 제1 불순물 영역들을 형성하기 전에,상기 제1 게이트 패턴의 측벽들을 덮으면서 상기 제1 플로팅 바디 패턴의 상기 돌출된 부분의 측벽들 상으로 연장된 게이트 스페이서들을 형성하는 것을 더 포함하는 반도체소자의 제조방법.
- 제 1 항에 있어서,상기 제1 플로팅 바디 패턴을 부분 식각하기 전에, 상기 제1 게이트 패턴의 측벽들을 덮는 제1 게이트 스페이서들을 형성하는 것을 더 포함하되, 상기 제1 게이트 스페이서들은 상기 제1 게이트 패턴과 더불어 상기 제1 플로팅 바디 패턴을 부분 식각하기 위한 식각 마스크로 이용되는 반도체소자의 제조방법.
- 제 6 항에 있어서,상기 제1 불순물 영역들을 형성하기 전에, 상기 제1 게이트 스페이서들을 덮으며 제1 플로팅 바디 패턴의 상기 돌출된 부분의 측벽들 상으로 연장된 제2 게이트 스페이서들을 형성하는 것을 더 포함하는 반도체소자의 제조방법.
- 제 1 항에 있어서,상기 제1 플로팅 바디 패턴의 상기 돌출된 부분은 상기 게이트 패턴보다 큰 폭을 갖는 반도체소자의 제조방법.
- 제 1 항에 있어서,상기 제1 불순물 영역들 사이 및 상기 제1 게이트 패턴 하부에 위치하는 상기 제1 플로팅 바디 패턴의 적어도 일부는 디램 셀의 전하 저장 영역인 반도체소자의 제조방법.
- 제 1 항에 있어서,상기 제1 플로팅 바디 패턴은 서로 다른 특성의 적어도 두 개의 영역들을 포 함하되, 상기 두 개의 영역들 중 상부에 위치하는 영역은 상기 제1 플로팅 바디 패턴의 상기 돌출된 부분에 위치하는 반도체소자의 제조방법.
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KR1020080129318A KR101442177B1 (ko) | 2008-12-18 | 2008-12-18 | 커패시터 없는 1-트랜지스터 메모리 셀을 갖는 반도체소자의 제조방법들 |
US12/654,333 US8039325B2 (en) | 2008-12-18 | 2009-12-17 | Methods of fabricating semiconductor device having capacitorless one-transistor memory cell |
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Cited By (1)
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US11289488B2 (en) | 2019-06-27 | 2022-03-29 | Samsung Electronics Co., Ltd. | Semiconductor memory device |
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