KR970052216A - Contact hole formation method of semiconductor device - Google Patents

Contact hole formation method of semiconductor device Download PDF

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Publication number
KR970052216A
KR970052216A KR1019950048295A KR19950048295A KR970052216A KR 970052216 A KR970052216 A KR 970052216A KR 1019950048295 A KR1019950048295 A KR 1019950048295A KR 19950048295 A KR19950048295 A KR 19950048295A KR 970052216 A KR970052216 A KR 970052216A
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KR
South Korea
Prior art keywords
contact hole
forming
silicon oxide
photoresist pattern
semiconductor device
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Application number
KR1019950048295A
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Korean (ko)
Inventor
이정석
남기원
Original Assignee
김주용
현대전자산업 주식회사
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Application filed by 김주용, 현대전자산업 주식회사 filed Critical 김주용
Priority to KR1019950048295A priority Critical patent/KR970052216A/en
Publication of KR970052216A publication Critical patent/KR970052216A/en

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  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)

Abstract

본 발명의 반도체 소자의 콘택홀 형성 방법에 관한 것으로, 특히 건식 식각에 의한 반도체 소자의 콘택홀 형성 방법에 관한 것이다.The present invention relates to a method for forming a contact hole in a semiconductor device, and more particularly, to a method for forming a contact hole in a semiconductor device by dry etching.

이와 같은 본 발명의 콘택홀 형성 방법은 실리콘 기판상에 실리콘 산화막을 형성하는 단계; 실리콘 산화막상에 콘택홀을 형성할 영역에 감광막 패턴을 형성하는 단계; 감광막 패턴이 형성된 실리콘 기판을 반응성 이온 챔버 내에 배치하고 고주파전원과 식가 가스 CHF3/CIF3을 공급하여 감광막 패턴의 형태로 실리콘 산화막을 식각하는 단계; 및 실리콘 산화막 식각시 손상된 실리콘층을 제거하는 단계를 포함하는 것을 특징으로 한다.Such a contact hole forming method of the present invention comprises the steps of forming a silicon oxide film on a silicon substrate; Forming a photoresist pattern on a region where a contact hole is to be formed on the silicon oxide film; Placing the silicon substrate on which the photoresist pattern is formed in a reactive ion chamber, and supplying a high frequency power source and a dietary gas CHF 3 / CIF 3 to etch the silicon oxide layer in the form of a photoresist pattern; And removing the damaged silicon layer when the silicon oxide layer is etched.

실리콘 산화막 식각시 기존의 CF4가스 대신 폴리머 생성을 억제할 수 있는 CIF3를 사용하는 것이 이 발명의 주된 요지이다.The use of CIF 3 , which can suppress the formation of polymers instead of the conventional CF 4 gas, is the main focus of the present invention.

Description

반도체 소자의 콘택홀 형성방법Contact hole formation method of semiconductor device

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

제3도는 본 발명의 실시예에 따른 반도체 소자의 콘택홀 형성을 위한 건식 식각시의 챔버 내의 상태도.3 is a state diagram in a chamber during dry etching for forming a contact hole in a semiconductor device according to an embodiment of the present invention.

Claims (3)

실리콘 기판상에 실리콘 산화막을 형성하는 단계; 상기 실리콘 산화막 상에 콘택홀을 형성할 영역에 감광막 패턴을 형성하는 단계; 상기 감광막 패턴이 형성된 실리콘 기판을 반응성 이온 챔버 내에 배치하고 고주파전원과 식각 가스 CHF3/CIF3을 공급하여 상기 감광막 패턴의 형태로 실리콘 산화막을 식각하는 단계; 및 상기 식각시 손상된 실리콘층을 제거하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 콘택홀 형성방법.Forming a silicon oxide film on the silicon substrate; Forming a photoresist pattern on a region where a contact hole is to be formed on the silicon oxide film; Placing the silicon substrate on which the photoresist pattern is formed in a reactive ion chamber and supplying a high frequency power source and an etching gas CHF 3 / CIF 3 to etch the silicon oxide layer in the form of the photoresist pattern; And removing the damaged silicon layer during the etching. 제1항에 있어서, 손상된 실리콘층을 제거하는 단계는 콘택홀을 식각한 챔버내에서 전원의 공급없이 CHF3/CIF3를 이용하여 식각하는 것을 특징으로 하는 반도체 소자의 콘택홀 형성방법.The method of claim 1, wherein the removing of the damaged silicon layer is performed using CHF 3 / CIF 3 without supplying power in a chamber in which the contact hole is etched. 제1항에 있어서, CHF3에 대한 CIF3의 혼합비는 1/40이하로 하는 것을 특징으로 하는 반도체 소자의 콘택홀 형성방법.The method of claim 1, wherein forming contact holes of a semiconductor device characterized in that the mixing ratio is less than 1/40 of CIF 3 to CHF 3. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950048295A 1995-12-11 1995-12-11 Contact hole formation method of semiconductor device KR970052216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950048295A KR970052216A (en) 1995-12-11 1995-12-11 Contact hole formation method of semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950048295A KR970052216A (en) 1995-12-11 1995-12-11 Contact hole formation method of semiconductor device

Publications (1)

Publication Number Publication Date
KR970052216A true KR970052216A (en) 1997-07-29

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KR1019950048295A KR970052216A (en) 1995-12-11 1995-12-11 Contact hole formation method of semiconductor device

Country Status (1)

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KR (1) KR970052216A (en)

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