KR970077355A - Method of forming high-voltage gate oxide film - Google Patents

Method of forming high-voltage gate oxide film Download PDF

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Publication number
KR970077355A
KR970077355A KR1019960017773A KR19960017773A KR970077355A KR 970077355 A KR970077355 A KR 970077355A KR 1019960017773 A KR1019960017773 A KR 1019960017773A KR 19960017773 A KR19960017773 A KR 19960017773A KR 970077355 A KR970077355 A KR 970077355A
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KR
South Korea
Prior art keywords
oxide film
gate oxide
voltage gate
layer
voltage
Prior art date
Application number
KR1019960017773A
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Korean (ko)
Inventor
최용석
김명수
Original Assignee
김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960017773A priority Critical patent/KR970077355A/en
Publication of KR970077355A publication Critical patent/KR970077355A/en

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Abstract

본 발명은 고전압 게이트 산화막의 형성 방법에 관한 것으로서, 필드 산화막이 형성되어 있는 반도체 기판과 그 반도체 기판 상면에 고전압 게이트 산화막이 형성되어 있고, 고전압 게이트 산화막 상면에 다결정 실리콘 게이트층을 디포지션 하고, 그 다결정 실리콘 게이트층 상면에 게이트 영역이 될 부분을 포토 마스킹을 실시하고, 상기 포토 마스크로 노출된 부위의 상기 다결정 실리콘 게이트층과 상기 고전압 게이트 산화막층을 식각하고 상기 포토 마스크를 제거하고, 상기 기판을 예비산화하여 고전압 게이트 산화막을 제조 함으로서, 종래 기술 보다 사진 공정을 한단계 줄여 생산성 및 원가를 절감하는 이점(利點)을 제공한다.The present invention relates to a method of forming a high-voltage gate oxide film, and more particularly, to a method of forming a high-voltage gate oxide film by forming a semiconductor substrate on which a field oxide film is formed and a high-voltage gate oxide film on the semiconductor substrate, Photomasking a portion of the polysilicon gate layer to be a gate region, etching the polysilicon gate layer and the high-voltage gate oxide layer exposed by the photomask, removing the photomask, By pre-oxidizing to form a high-voltage gate oxide film, the photolithography process is reduced by one step compared to the prior art, thereby providing an advantage of reducing productivity and cost.

Description

고전압 게이트 산화막의 형성 방법Method of forming high-voltage gate oxide film

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제2도는 본 발명에 의한 고전압 게이트 산화막을 제조하는 공정을 나타내는 단면도.FIG. 2 is a cross-sectional view showing a step of manufacturing a high-voltage gate oxide film according to the present invention. FIG.

Claims (2)

(a) 필드 산화막이 형성되어 있는 반도체 기판과 그 반도체 기판 상면에 고전압 게이트 산화막이 형성되어 있는 반도체 기판을 준비하는 단계; (b) 상기 고전압 게이트 산화막 상면에 다결정 실리콘 게이트층을 디포지션 하는 단계; (c) 상기 다결정 실리콘 게이트층 상면에 게이트 영역이 될 부분을 포토 마스킹 하는 단계; (d) 상기 포토 마스킹 공정을 실시하여 포토레지스트로 노출된 부분의 상기 다결정 실리콘 게이트층과 상기 고전압 게이트 산화막층을 식각하는 단계; (e) 상기 포토 레지스트를 제거하는 단계; (f) 상기 기판을 예비 산화하여 버퍼 산화막을 형성하는 단계들을 포함하는 것을 특징으로 하는 고전압 게이트 산화막의 제조 방법.(a) preparing a semiconductor substrate on which a field oxide film is formed and a semiconductor substrate on which a high-voltage gate oxide film is formed; (b) depositing a polysilicon gate layer on top of the high-voltage gate oxide layer; (c) photomasking a portion to be a gate region on the upper surface of the polysilicon gate layer; (d) etching the polysilicon gate layer and the high-voltage gate oxide layer of the portion exposed by the photoresist by performing the photomasking process; (e) removing the photoresist; (f) pre-oxidizing the substrate to form a buffer oxide film. 상기 제1항에 있어서, 상기 게이트 산화막의 두께가 약 1,000Å 이상으로 형성되는 것을 특징으로 하는 고전압 게이트 산화막의 제조 방법.The method of claim 1, wherein the gate oxide layer has a thickness of about 1,000 angstroms or more. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960017773A 1996-05-23 1996-05-23 Method of forming high-voltage gate oxide film KR970077355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960017773A KR970077355A (en) 1996-05-23 1996-05-23 Method of forming high-voltage gate oxide film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960017773A KR970077355A (en) 1996-05-23 1996-05-23 Method of forming high-voltage gate oxide film

Publications (1)

Publication Number Publication Date
KR970077355A true KR970077355A (en) 1997-12-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960017773A KR970077355A (en) 1996-05-23 1996-05-23 Method of forming high-voltage gate oxide film

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