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    • 7. 发明公开
    • 반도체 드라이 프로세스 후의 잔사 제거액 및 이를 이용한 잔사 제거 방법
    • 用于移除半导体干燥处理后的残留物的方法和使用其的残留物去除方法
    • KR1020100051717A
    • 2010-05-17
    • KR1020107005120
    • 2008-08-21
    • 다이킨 고교 가부시키가이샤
    • 나카무라신고게즈카다케히코
    • H01L21/302H01L21/3065C07D249/00
    • H01L21/02068C11D7/3281C11D7/34C11D11/0047H01L21/02063
    • Disclosed is a solution for removing a residue after a dry processing, which can prevent the cracking or roughening of a Cu surface which cannot be overcome by a conventional liquid polymer stripper, which can prevent the oxidation of a Cu surface, and which contains a surface-protecting agent. Also disclosed is a method for producing a semiconductor device by using the solution. Specifically disclosed is a solution for removing a residue remaining on a semiconductor substrate after dry etching and/or ashing, which comprises: a Cu surface-protecting agent comprising at least one compound selected from the group consisting of (1) a compound which has, as a basic skeleton, a 5-membered heterocyclic aromatic compound having a structure represented by the formula: =N-NH-(provided that one having three contiguous N atoms is excluded) and which shows a pH value of 7 or less in the form of an aqueous solution (10 ppm, 23°C); (2) a compound which has, as a basic skeleton, a 5-membered heterocyclic compound having a structure represented by the formula:-N=C(SH)-X-[wherein X represents NH, O or S] and which shows a pH value of 7 or less in the form of an aqueous solution (10 ppm, 23°C) and (3) a compound which has, as a basic skeleton, a 6-membered heterocyclic aromatic compound having at least one nitrogen atom (N) and which shows a pH value of 7 or more in the form of an aqueous solution (10 ppm, 23°C); a compound capable of forming a complex or chelate in coordination with Cu (copper); and water. The solution has a pH value ranging from 4 to 9.
    • 公开了一种在干法加工后除去残渣的溶液,其可以防止Cu表面的破裂或粗糙化,这是常规的液体聚合物汽提器无法克服的,其可以防止Cu表面的氧化,并且其包含表面 保护剂。 还公开了通过使用该解决方案来制造半导体器件的方法。 具体公开的是用于去除在干法蚀刻和/或灰化之后残留在半导体衬底上的残余物的溶液,其包括:包含至少一种选自以下的化合物的Cu表面保护剂:(1) 作为基本骨架,具有由式= N-NH-表示的结构的5元杂环芳族化合物(条件是排除具有三个相邻的N原子的那些),其pH值为7以下 的水溶液(10ppm,23℃); (2)作为基本骨架的具有由下式表示的结构的5元杂环化合物的化合物:-N = C(SH)-X- [其中X表示NH,O或S],表示 水溶液形式的pH值为7以下(10ppm,23℃)和(3)以具有至少一个氮原子的6元杂环芳香族化合物为基本骨架的化合物( N),其水溶液形式(10ppm,23℃)的pH值为7以上。 能够与Cu(铜)配位形成络合物或螯合物的化合物; 和水。 该溶液的pH值范围为4至9。