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公开(公告)号:KR1020070020142A
公开(公告)日:2007-02-16
申请号:KR1020077001688
申请日:2005-06-21
Applicant: 도쿄엘렉트론가부시키가이샤
Inventor: 고시이시아키라 , 스기모토마사루 , 히나타구니히코 , 고바야시노리유키 , 고시미즈치시오 , 오타니류지 , 기비가즈오 , 사이토마사시 , 마츠모토나오키 , 오오야요시노부 , 이와타마나부 , 야노다이스케 , 야마자와요헤이 , 하나오카히데토시 , 하야미도시히로 , 야마자키히로키 , 사토마나부
IPC: H05H1/18
CPC classification number: H01L21/31116 , H01J37/32091 , H01J37/32165 , H01J37/32532 , H01J2237/3342 , H01L21/31138
Abstract: There is provided a plasma etching device for generating plasma as a processing gas between an upper electrode (34) and a lower electrode (16) and subjecting a wafer (W) to plasma etching. The upper electrode (34) includes a variable DC power source (50) for applying DC voltage so that the absolute value of the self bias voltage Vdc on the surface of the upper electrode (34) becomes large enough to obtain an appropriate sputter effect to the surface and the thickness of the plasma sheath on the upper electrode (34) becomes thick enough to form a desired miniaturization plasma. ® KIPO & WIPO 2007
Abstract translation: 提供了一种用于在上电极(34)和下电极(16)之间产生等离子体作为处理气体并对晶片(W)进行等离子体蚀刻的等离子体蚀刻装置。 上电极(34)包括用于施加直流电压的可变直流电源(50),使得上电极(34)的表面上的自偏压Vdc的绝对值变得足够大以获得适当的溅射效应 上电极(34)上的等离子体护套的表面和厚度变得足够厚以形成期望的小型化等离子体。 ®KIPO&WIPO 2007