KR20160012459A - 반도체 소자 및 그 제조 방법 - Google Patents
반도체 소자 및 그 제조 방법 Download PDFInfo
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- KR20160012459A KR20160012459A KR1020140093925A KR20140093925A KR20160012459A KR 20160012459 A KR20160012459 A KR 20160012459A KR 1020140093925 A KR1020140093925 A KR 1020140093925A KR 20140093925 A KR20140093925 A KR 20140093925A KR 20160012459 A KR20160012459 A KR 20160012459A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims description 87
- 230000003647 oxidation Effects 0.000 claims description 31
- 238000007254 oxidation reaction Methods 0.000 claims description 31
- -1 fluorine ions Chemical class 0.000 claims description 15
- 229910052731 fluorine Inorganic materials 0.000 claims description 14
- 239000011737 fluorine Substances 0.000 claims description 14
- 239000012212 insulator Substances 0.000 claims 4
- 239000012535 impurity Substances 0.000 description 48
- 238000009792 diffusion process Methods 0.000 description 37
- 229920002120 photoresistant polymer Polymers 0.000 description 23
- 238000005468 ion implantation Methods 0.000 description 20
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 15
- 239000002019 doping agent Substances 0.000 description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 8
- 229920005591 polysilicon Polymers 0.000 description 8
- 238000004380 ashing Methods 0.000 description 7
- 230000015556 catabolic process Effects 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 5
- 239000007943 implant Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000001039 wet etching Methods 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
Description
도 2 내지 도 4는 본 발명의 다른 실시예들에 따른 반도체 소자들을 설명하기 위한 개략적인 단면도들이다.
도 5 내지 도 10은 도 1에 도시된 반도체 소자를 제조하는 방법을 설명하기 위한 개략적인 단면도들이다.
도 11 내지 도 17은 도 2에 도시된 반도체 소자를 제조하는 방법을 설명하기 위한 개략적인 단면도들이다.
도 18 내지 도 25는 도 3에 도시된 반도체 소자를 제조하는 방법을 설명하기 위한 개략적인 단면도들이다.
도 26 내지 도 31은 도 4에 도시된 반도체 소자를 제조하는 방법을 설명하기 위한 개략적인 단면도들이다.
102 : 기판 104 : 액티브 영역
120 : 제1 게이트 절연막 122 : 제2 게이트 절연막
130 : 게이트 전극 140 : 소스 영역
150 : 드레인 영역
Claims (19)
- 기판 및 상기 기판 상에 형성된 모스 트랜지스터를 포함하는 반도체 소자에 있어서, 상기 모스 트랜지스터는,
상기 기판 상에 형성된 제1 게이트 절연막;
상기 제1 게이트 절연막의 일측에 형성되며 상기 제1 게이트 절연막보다 두꺼운 제2 게이트 절연막;
상기 제1 게이트 절연막 및 상기 제2 게이트 절연막 상에 형성된 게이트 전극;
상기 제1 게이트 절연막에 인접하는 상기 기판의 표면 부위에 형성된 소스 영역; 및
상기 제2 게이트 절연막에 인접하는 상기 기판의 표면 부위에 형성된 드레인 영역을 포함하는 것을 특징으로 하는 반도체 소자. - 제1항에 있어서, 상기 소스 영역은 저농도 도핑 드레인(LDD) 구조를 갖는 것을 특징으로 하는 반도체 소자.
- 제1항에 있어서, 상기 드레인 영역은 이중 확산 드레인(DDD) 구조를 갖는 것을 특징으로 하는 반도체 소자.
- 제1항에 있어서, 상기 모스 트랜지스터는 상기 기판의 저전압 영역 상에 형성되며, 상기 기판의 고전압 영역 상에는 상기 제2 게이트 절연막보다 두꺼운 고전압 게이트 절연막을 갖는 고전압 모스 트랜지스터가 형성되는 것을 특징으로 하는 반도체 소자.
- 제1항에 있어서, 상기 모스 트랜지스터는 상기 기판의 고전압 영역 상에 형성되며, 상기 기판의 저전압 영역 상에는 상기 제1 게이트 절연막보다 얇은 저전압 게이트 절연막을 갖는 저전압 모스 트랜지스터가 형성되는 것을 특징으로 하는 반도체 소자.
- 제1 게이트 절연막 및 상기 제1 게이트 절연막의 일측에 상기 제1 게이트 절연막보다 두꺼운 제2 게이트 절연막을 기판 상에 형성하는 단계;
상기 제1 게이트 절연막과 제2 게이트 절연막 상에 게이트 전극을 형성하는 단계; 및
상기 제1 게이트 절연막 및 상기 제2 게이트 절연막에 인접하는 상기 기판의 표면 부위들에 소스 영역 및 드레인 영역을 각각 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법. - 제6항에 있어서, 상기 제1 게이트 절연막과 상기 제2 게이트 절연막은 상기 기판의 저전압 영역 상에 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제7항에 있어서, 상기 기판의 고전압 영역과 상기 저전압 영역 상에 예비 게이트 절연막을 형성하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제8항에 있어서, 상기 제1 게이트 절연막과 상기 제2 게이트 절연막을 형성하는 단계는,
상기 제2 게이트 절연막이 형성될 영역에 불소 이온을 주입하는 단계; 및
상기 제1 게이트 절연막과 상기 제2 게이트 절연막을 형성하기 위하여 열산화 공정을 수행하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법. - 제9항에 있어서, 상기 열산화 공정을 수행하기 전에 상기 저전압 영역 상의 상기 예비 게이트 절연막 부위를 제거하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제9항에 있어서, 상기 열산화 공정에 의해 상기 고전압 영역 상에 상기 제2 게이트 절연막보다 두꺼운 고전압 게이트 절연막이 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제6항에 있어서, 상기 소스 영역은 저농도 도핑 드레인(LDD) 구조를 갖는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제6항에 있어서, 상기 드레인 영역은 이중 확산 드레인(DDD) 구조를 갖는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제6항에 있어서, 상기 제1 게이트 절연막과 상기 제2 게이트 절연막은 상기 기판의 고전압 영역 상에 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제14항에 있어서, 상기 제1 게이트 절연막과 상기 제2 게이트 절연막을 형성하는 단계는,
상기 제2 게이트 절연막이 형성될 영역에 불소 이온을 주입하는 단계;
상기 고전압 영역 상에 제1 예비 게이트 절연막과 상기 제1 예비 게이트 절연막보다 두꺼운 제2 예비 게이트 절연막을 형성하기 위하여 제1 열산화 공정을 수행하는 단계; 및
상기 제1 게이트 절연막과 상기 제2 게이트 절연막을 형성하기 위하여 제2 열산화 공정을 수행하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법. - 제15항에 있어서, 상기 제2 열산화 공정을 수행하기 전에 상기 제1 열산화 공정에 의해 상기 기판의 저전압 영역 상에 형성된 상기 제1 예비 게이트 절연막 부위를 제거하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제16항에 있어서, 상기 제2 열산화 공정에 의해 상기 저전압 영역 상에 상기 제1 게이트 절연막보다 얇은 저전압 게이트 절연막이 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제15항에 있어서, 상기 저전압 영역의 일부에 불소 이온을 주입하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제18항에 있어서, 상기 제2 열산화 공정에 의해 상기 저전압 영역 상에는 제3 게이트 절연막 및 상기 제3 게이트 절연막보다 두꺼운 제4 게이트 절연막이 형성되고,
상기 제4 게이트 절연막은 상기 저전압 영역의 일부 상에 형성되며 상기 제1 게이트 절연막보다 얇은 두께를 갖는 것을 특징으로 하는 반도체 소자의 제조 방법.
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CN106206735B (zh) * | 2016-07-19 | 2019-12-10 | 上海华虹宏力半导体制造有限公司 | Mosfet及其制造方法 |
KR102299662B1 (ko) * | 2017-07-13 | 2021-09-07 | 매그나칩 반도체 유한회사 | 반도체 소자 및 그 제조 방법 |
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US11152381B1 (en) * | 2020-04-13 | 2021-10-19 | HeFeChip Corporation Limited | MOS transistor having lower gate-to-source/drain breakdown voltage and one-time programmable memory device using the same |
US11114140B1 (en) | 2020-04-23 | 2021-09-07 | HeFeChip Corporation Limited | One time programmable (OTP) bits for physically unclonable functions |
US11437082B2 (en) | 2020-05-17 | 2022-09-06 | HeFeChip Corporation Limited | Physically unclonable function circuit having lower gate-to-source/drain breakdown voltage |
CN115547930B (zh) * | 2022-11-29 | 2023-04-04 | 绍兴中芯集成电路制造股份有限公司 | 半导体集成电路及其制备方法 |
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