KR970003800A - Device Separating Method of Semiconductor Device - Google Patents

Device Separating Method of Semiconductor Device Download PDF

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Publication number
KR970003800A
KR970003800A KR1019950017285A KR19950017285A KR970003800A KR 970003800 A KR970003800 A KR 970003800A KR 1019950017285 A KR1019950017285 A KR 1019950017285A KR 19950017285 A KR19950017285 A KR 19950017285A KR 970003800 A KR970003800 A KR 970003800A
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KR
South Korea
Prior art keywords
oxide film
forming
film
nitride
device isolation
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Application number
KR1019950017285A
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Korean (ko)
Inventor
양태흠
Original Assignee
김주용
현대전자산업 주식회사
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Application filed by 김주용, 현대전자산업 주식회사 filed Critical 김주용
Priority to KR1019950017285A priority Critical patent/KR970003800A/en
Publication of KR970003800A publication Critical patent/KR970003800A/en

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  • Local Oxidation Of Silicon (AREA)
  • Element Separation (AREA)

Abstract

본 발명은 반도체 소자의 소자분리막 형성방법에 관한 것으로, 단차 및 버즈빅의 크기를 최소화시키기 위하여 실리콘기판의 소자분리영역을 리세스(Recess)구조로 형성한 후 채널스톱(Channel stop)이온을 주입하고, 상기 리세스 구조의 내부에 산화막을 증착하므로써 소자의 신뢰성을 향상시킬 수 있도록 한 반도체 소자의 소자분리막 형성방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of forming a device isolation film of a semiconductor device, and to implanting a channel stop ion after forming a device isolation region of a silicon substrate in a recess structure in order to minimize the size of the step and the size of the buzz beak. In addition, the present invention relates to a method for forming a device isolation film of a semiconductor device in which the reliability of the device can be improved by depositing an oxide film inside the recess structure.

Description

반도체 소자의 소자분리막 형성방법Device Separating Method of Semiconductor Device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3A 내지 제3I도는 본 발명에 따른 반도체 소자의 소자분리막 형성방법을 설명하기 위한 소자의 단면도.3A to 3I are cross-sectional views of a device for explaining a method of forming a device isolation film of a semiconductor device according to the present invention.

Claims (3)

반도체 소자의 소자분리막 형성방법에 있어서, 실리콘기판상에 패드산화막 및 질화막을 순차적으로 형성한 후 소자분리영역의 상기 패드산화막이 노출되도록 상기 질화막을 패터닝하는 단계와, 상기 단계로부터 상기 패터닝된 질화막의 양측벽에 소정 두께의 질화막 스페이서를 형성하는 단계와, 상기 단계로부터 상기 소자분리영역의 실리콘기판을 산화시켜 상기 소자분리영역에 제1산화막을 형성하는 단계와, 상기 단계로부터 상기 질화막 및 질화막 스페이서를 식각방지층으로 이용하여 노출된 부분의 상기 제1산화막을 식각하는 단계와, 상기 단계로부터 상기 질화막, 질화막 스페이서 및 잔류된 제1산화막을 식각방지층으로 이용하여 노출된 실리콘기판을 소정 깊이 식각하는 단계와, 상기 단계로부터 노출된 실리콘기판상에 버퍼산화막을 형성한 후 상기 버퍼산화막 하부의 실리콘기판에 채널스톱영역을 형성하기 위하여 채널스톱 이온을 주입하는 단계와, 상기 단계로부터 전체 상부면에 제2산화막을 형성한 후 상기 질화막의 표면이 노출되는 시점까지 상기 제2산화막을 전면식각하는 단계와, 상기 단계로부터 잔류되는 상기 질화막 및 질화막 스페이서를 제거시키는 단계로 이루어지는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.A method of forming a device isolation film of a semiconductor device, the method comprising: sequentially forming a pad oxide film and a nitride film on a silicon substrate, and then patterning the nitride film to expose the pad oxide film in a device isolation region. Forming a nitride film spacer having a predetermined thickness on both side walls, oxidizing a silicon substrate of the device isolation region from the step, and forming a first oxide film in the device isolation region, and forming the nitride film and nitride film spacer from the step Etching the exposed first oxide film by using the etch stop layer, and etching the exposed silicon substrate by using the nitride film, the nitride spacer and the remaining first oxide film as an etch stop layer from the step; , Forming a buffer oxide film on the silicon substrate exposed from the step And implanting channel stop ions to form a channel stop region in the silicon substrate under the buffer oxide film, and forming a second oxide film on the entire upper surface from the step until the surface of the nitride film is exposed. A method of forming a device isolation film of a semiconductor device, comprising: etching the entire oxide film and removing the nitride film and the nitride spacer remaining from the step. 제1항에 있어서, 상기 버퍼산화막은 열산화공정으로 성장시키는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.The method of claim 1, wherein the buffer oxide film is grown by a thermal oxidation process. 제1항에 있어서, 상기 제2산화막은 화학 기상 증착 방법으로 형성되는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.The method of claim 1, wherein the second oxide film is formed by a chemical vapor deposition method. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950017285A 1995-06-24 1995-06-24 Device Separating Method of Semiconductor Device KR970003800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950017285A KR970003800A (en) 1995-06-24 1995-06-24 Device Separating Method of Semiconductor Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950017285A KR970003800A (en) 1995-06-24 1995-06-24 Device Separating Method of Semiconductor Device

Publications (1)

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KR970003800A true KR970003800A (en) 1997-01-29

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KR1019950017285A KR970003800A (en) 1995-06-24 1995-06-24 Device Separating Method of Semiconductor Device

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KR (1) KR970003800A (en)

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