KR20010032412A - 산화물의 고도 선택적 에칭 방법 - Google Patents
산화물의 고도 선택적 에칭 방법 Download PDFInfo
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- KR20010032412A KR20010032412A KR1020007005652A KR20007005652A KR20010032412A KR 20010032412 A KR20010032412 A KR 20010032412A KR 1020007005652 A KR1020007005652 A KR 1020007005652A KR 20007005652 A KR20007005652 A KR 20007005652A KR 20010032412 A KR20010032412 A KR 20010032412A
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- silicon oxide
- layer
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- silicon
- halide
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- 238000000034 method Methods 0.000 title claims abstract description 68
- 238000005530 etching Methods 0.000 title claims abstract description 40
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 85
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 150000004820 halides Chemical class 0.000 claims abstract description 28
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- 239000004065 semiconductor Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 210000000352 storage cell Anatomy 0.000 claims abstract description 10
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 37
- 239000007789 gas Substances 0.000 claims description 27
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 23
- 229910052710 silicon Inorganic materials 0.000 claims description 21
- 239000010703 silicon Substances 0.000 claims description 21
- 239000005380 borophosphosilicate glass Substances 0.000 claims description 18
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 12
- 229920005591 polysilicon Polymers 0.000 claims description 12
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 11
- 238000000137 annealing Methods 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 238000010899 nucleation Methods 0.000 claims description 5
- 150000004678 hydrides Chemical class 0.000 claims description 2
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 18
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 14
- 210000004027 cell Anatomy 0.000 description 8
- 239000012071 phase Substances 0.000 description 8
- 239000005388 borosilicate glass Substances 0.000 description 6
- 239000005360 phosphosilicate glass Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 4
- 235000012431 wafers Nutrition 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001039 wet etching Methods 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- -1 NF 3 Chemical compound 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 238000001289 rapid thermal chemical vapour deposition Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000005389 semiconductor device fabrication Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30604—Chemical etching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Semiconductor Memories (AREA)
- Weting (AREA)
- Drying Of Semiconductors (AREA)
- Semiconductor Integrated Circuits (AREA)
- Formation Of Insulating Films (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Description
Claims (21)
- 산화물 층을 기판의 표면상에 제공하는 단계, 상기 산화물 층을 할로겐화물-함유 종을 포함하는 액체에 노출시키는 단계, 및 상기 산화물 층을 할로겐화물-함유 종을 포함하는 가스상에 노출시키는 단계를 포함하는, 산화물 에칭 방법.
- 제1항에 있어서, 할로겐화물-함유 종이 HF, NF3, ClF3및 F2로 이루어진 그룹중에서 선택되는 방법.
- 제1항에 있어서, 할로겐화물-함유 종이 HF를 포함하고, 가스상이 알코올을 포함하는 방법.
- 제1항에 있어서, 기판의 표면이 이의 제1 부위상에 제2 실리콘 산화물 보다 비교적 더 조밀한 제1 실리콘 산화물을 포함하고 이의 제2 부위상에 제2 실리콘 산화물을 포함하며; 산화물을 할로겐화물-함유 종을 포함하는 액체에 노출시키는 단계 및 산화물을 할로겐화물-함유 종을 포함하는 가스상에 노출시키는 단계에 의해 제1 실리콘 산화물이 에칭되는 속도 보다 더 신속한 속도로 제2 실리콘 산화물이 선택적으로 에칭되는 방법.
- 제4항에 있어서, 제1 실리콘 산화물이 테트라에틸오르토실리케이트-유도된 산화물을 포함하고, 제2 실리콘 산화물이 보로포스포실리케이트 유리를 포함하는 방법.
- 제5항에 있어서, 제2 실리콘 산화물이 제1 실리콘 산화물을 피복하는 방법.
- 실리콘 산화물 층을 기판의 표면상에 제공하는 단계, 상기 실리콘 산화물 층을 불화수소산의 수용액을 포함하는 액체에 노출시키는 단계, 및 실리콘 산화물 층을 불화수소산 증기를 포함하는 가스상에 노출시키는 단계를 포함하여, 기판상의 실리콘 산화물 층을 에칭하는 방법.
- 제7항에 있어서, 가스상이 메탄올을 포함하는 방법.
- 제7항에 있어서, 기판의 표면이 이의 제1 부위상에 제2 실리콘 산화물 보다 비교적 더 조밀한 제1 실리콘 산화물을 포함하고 이의 제2 부위상에 제2 실리콘 산화물을 포함하며; 산화물을 불화수소산의 수용액을 포함하는 액체에 노출시키는 단계 및 산화물을 불화수소산 증기를 포함하는 가스상에 노출시키는 단계에 의해 제1 실리콘 산화물이 에칭되는 속도 보다 더 신속한 속도로 제2 실리콘 산화물이 선택적으로 에칭되는 방법.
- 제9항에 있어서, 제1 실리콘 산화물이 테트라에틸오르토실리케이트-유도된 산화물을 포함하고, 제2 실리콘 산화물이 보로포스포실리케이트 유리를 포함하는 방법.
- 제10항에 있어서, 제2 실리콘 산화물이 제1 실리콘 산화물을 피복하는 방법.
- 폴리실리콘 또는 비결정형 실리콘 층을 형성시키는 단계; 상기 층을, 상기 층상의 모든 산화물이 제거되기에 충분한 시간 동안 할로겐화물-함유 종을 포함하는 가스상에 노출시키는 단계; 상기 층을 산소 또는 산소-함유 가스에 노출시키지 않으면서, 상기 층을 승온에서 어닐링시켜 상기 폴리실리콘 또는 비결정형 실리콘을 반구형 입자 실리콘으로 전환시키는 단계를 포함하여, 반구형 입자 실리콘을 형성시키는 방법.
- 제12항에 있어서, 할로겐화물-함유 종이 HF, NF3, ClF3및 F2로 이루어진 그룹중에서 선택되는 방법.
- 제12항에 있어서, 할로겐화물-함유 종이 HF를 포함하고, 가스상이 알코올을 포함하는 방법.
- 제12항에 있어서, 어닐닝 단계에 앞서 수소화물 가스에 의한 상기 층의 시딩단계가 선행되는 방법.
- 제12항에 있어서, 상기 층의 어닐링 단계가 약 200℃ 이상의 온도에서 수행되는 방법.
- 제2 실리콘 산화물 보다 비교적 더 조밀한 제1 실리콘 산화물 층을 반도체 기판의 표면상에 형성시키는 단계;제2 실리콘 산화물 층을 제1 실리콘 산화물 층상에 형성시키는 단계;개구를 제1 및 제2 실리콘 산화물 층내에 형성시키는 단계;상기 개구내에 통상 수직 방향의 측벽을 갖는 폴리실리콘 또는 비결정형 실리콘 컨테이너 구조를 형성시키는 단계;상기 제2 실리콘 산화물 층을 할로겐화물-함유 종을 포함하는 액체에 노출시킴으로써 제2 실리콘 산화물 층의 적어도 일부를 선택적으로 제거하는 단계;상기 제2 층을 할로겐화물-함유 종을 포함하는 가스상에 노출시켜 상기 제2 실리콘 산화물 층의 잔여부를 선택적으로 제거함으로써, 상기 컨테이너 구조의 측벽을 노출시키는 단계;상기 기판을 산소 또는 산소-함유 가스에 노출시키지 않으면서, 상기 컨테이너 벽을 승온에서 어닐링시켜 상기 폴리실리콘 또는 비결정형 실리콘을 반구형 입자 실리콘으로 전환시키는 단계;상기 반구형 입자 실리콘 벽을 전도적으로 도우핑시켜 캐퍼시터 플레이트를 형성시키는 단계;상기 캐퍼시터 플레이트상에 캐퍼시터 유전층을 형성시키는 단계; 및상기 캐퍼시터 유전층상에 제2 전도성 실리콘 층을 형성시키는 단계를 포함하여, 반도체 기판상에 캐퍼시터 저장 셀을 형성시키는 방법.
- 제17항에 있어서, 할로겐화물-함유 종이 HF, NF3, ClF3및 F2로 이루어진 그룹중에서 선택되는 방법.
- 제17항에 있어서, 할로겐화물-함유 종이 HF를 포함하고, 가스상이 알코올을 포함하는 방법.
- 제17항에 있어서, 제1 실리콘 산화물이 테트라에틸오르토실리케이트-유도된 산화물을 포함하고, 제2 실리콘 산화물이 보로포스포실리케이트 유리를 포함하는 방법.
- 제17항에 있어서, 상기 층의 어닐링 단계가 약 200℃ 이상의 온도에서 수행되는 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/977,251 US6126847A (en) | 1997-11-24 | 1997-11-24 | High selectivity etching process for oxides |
US08/977,251 | 1997-11-24 | ||
US8/977,251 | 1997-11-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010032412A true KR20010032412A (ko) | 2001-04-16 |
KR100458658B1 KR100458658B1 (ko) | 2004-12-03 |
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Application Number | Title | Priority Date | Filing Date |
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KR10-2000-7005652A Expired - Fee Related KR100458658B1 (ko) | 1997-11-24 | 1998-11-24 | 산화물에 대한 선택성이 높은 에칭방법 |
Country Status (8)
Country | Link |
---|---|
US (3) | US6126847A (ko) |
EP (1) | EP1034563B1 (ko) |
JP (2) | JP3733024B2 (ko) |
KR (1) | KR100458658B1 (ko) |
AT (1) | ATE481733T1 (ko) |
AU (1) | AU1602299A (ko) |
DE (1) | DE69841902D1 (ko) |
WO (1) | WO1999027573A1 (ko) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6126847A (en) * | 1997-11-24 | 2000-10-03 | Micron Technology Inc. | High selectivity etching process for oxides |
US6054379A (en) * | 1998-02-11 | 2000-04-25 | Applied Materials, Inc. | Method of depositing a low k dielectric with organo silane |
US7115422B1 (en) | 1998-10-23 | 2006-10-03 | Micron Technology, Inc. | Separation apparatus including porous silicon column |
US6762057B1 (en) * | 1998-10-23 | 2004-07-13 | Micron Technology, Inc. | Separation apparatus including porous silicon column |
KR100434537B1 (ko) * | 1999-03-31 | 2004-06-05 | 삼성전자주식회사 | 다공질 실리콘 혹은 다공질 산화 실리콘을 이용한 두꺼운 희생층을 가진 다층 구조 웨이퍼 및 그 제조방법 |
US6544842B1 (en) * | 1999-05-01 | 2003-04-08 | Micron Technology, Inc. | Method of forming hemisphere grained silicon on a template on a semiconductor work object |
KR100470165B1 (ko) * | 1999-06-28 | 2005-02-07 | 주식회사 하이닉스반도체 | 반도체소자 제조 방법 |
US6635943B1 (en) * | 1999-11-30 | 2003-10-21 | Advanced Micro Devices, Inc. | Method and system for reducing charge gain and charge loss in interlayer dielectric formation |
KR100381011B1 (ko) * | 2000-11-13 | 2003-04-26 | 한국전자통신연구원 | 멤즈소자 제조용 미세구조체를 고착없이 띄우는 방법 |
US6518117B2 (en) * | 2001-03-29 | 2003-02-11 | Micron Technology, Inc. | Methods of forming nitrogen-containing masses, silicon nitride layers, and capacitor constructions |
US7183201B2 (en) * | 2001-07-23 | 2007-02-27 | Applied Materials, Inc. | Selective etching of organosilicate films over silicon oxide stop etch layers |
US6936183B2 (en) * | 2001-10-17 | 2005-08-30 | Applied Materials, Inc. | Etch process for etching microstructures |
US6768440B1 (en) * | 2003-03-28 | 2004-07-27 | Zilog, Inc. | Digital-to-analog converters with reduced parasitics and associated methods |
US7214978B2 (en) * | 2004-02-27 | 2007-05-08 | Micron Technology, Inc. | Semiconductor fabrication that includes surface tension control |
KR100771865B1 (ko) | 2006-01-18 | 2007-11-01 | 삼성전자주식회사 | 스토리지 캐패시터와 고내압 캐패시터를 구비하는 반도체소자의 제조방법 및 그를 사용하여 제조된 반도체 소자 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2218567A (en) * | 1988-05-13 | 1989-11-15 | Philips Electronic Associated | A method of forming an epitaxial layer of silicon |
US5235995A (en) * | 1989-03-27 | 1993-08-17 | Semitool, Inc. | Semiconductor processor apparatus with dynamic wafer vapor treatment and particulate volatilization |
DE68927726T2 (de) * | 1988-07-20 | 1997-07-17 | Hashimoto Chemical Ind Co | Einrichtung zum Trockenätzen mit einem Generator zum Erzeugen von wasserfreiem Flusssäuregas |
US5238500A (en) * | 1990-05-15 | 1993-08-24 | Semitool, Inc. | Aqueous hydrofluoric and hydrochloric acid vapor processing of semiconductor wafers |
US5332445A (en) * | 1990-05-15 | 1994-07-26 | Semitool, Inc. | Aqueous hydrofluoric acid vapor processing of semiconductor wafers |
DE4123228C2 (de) * | 1991-07-12 | 1994-05-26 | Siemens Ag | Verfahren zur Dotierstoffkonzentrationsbestimmung mittels Ätzratenbestimmung in Borphosphorsilikatglasschichten für integrierte Halbleiter |
US5228206A (en) * | 1992-01-15 | 1993-07-20 | Submicron Systems, Inc. | Cluster tool dry cleaning system |
US5234540A (en) * | 1992-04-30 | 1993-08-10 | Submicron Systems, Inc. | Process for etching oxide films in a sealed photochemical reactor |
JP2833946B2 (ja) * | 1992-12-08 | 1998-12-09 | 日本電気株式会社 | エッチング方法および装置 |
US5340765A (en) * | 1993-08-13 | 1994-08-23 | Micron Semiconductor, Inc. | Method for forming enhanced capacitance stacked capacitor structures using hemi-spherical grain polysilicon |
US5494841A (en) * | 1993-10-15 | 1996-02-27 | Micron Semiconductor, Inc. | Split-polysilicon CMOS process for multi-megabit dynamic memories incorporating stacked container capacitor cells |
US5407534A (en) * | 1993-12-10 | 1995-04-18 | Micron Semiconductor, Inc. | Method to prepare hemi-spherical grain (HSG) silicon using a fluorine based gas mixture and high vacuum anneal |
US5635102A (en) * | 1994-09-28 | 1997-06-03 | Fsi International | Highly selective silicon oxide etching method |
US5567332A (en) * | 1995-06-09 | 1996-10-22 | Fsi International | Micro-machine manufacturing process |
US5634974A (en) * | 1995-11-03 | 1997-06-03 | Micron Technologies, Inc. | Method for forming hemispherical grained silicon |
US6126847A (en) * | 1997-11-24 | 2000-10-03 | Micron Technology Inc. | High selectivity etching process for oxides |
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1997
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- 1998-11-24 WO PCT/US1998/025091 patent/WO1999027573A1/en active IP Right Grant
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JP2001210617A (ja) | 2001-08-03 |
EP1034563A1 (en) | 2000-09-13 |
JP2001524750A (ja) | 2001-12-04 |
AU1602299A (en) | 1999-06-15 |
EP1034563B1 (en) | 2010-09-15 |
US6217784B1 (en) | 2001-04-17 |
JP3733024B2 (ja) | 2006-01-11 |
US6355182B2 (en) | 2002-03-12 |
KR100458658B1 (ko) | 2004-12-03 |
WO1999027573A1 (en) | 1999-06-03 |
US20010006167A1 (en) | 2001-07-05 |
DE69841902D1 (de) | 2010-10-28 |
ATE481733T1 (de) | 2010-10-15 |
US6126847A (en) | 2000-10-03 |
JP3464447B2 (ja) | 2003-11-10 |
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