A process for the manufacture of semiconductor devices comprising the chemical mechanical polishing of elemental germanium and/or si1-xgex material in the presence of a cmp composi-tion comprising a specific organic compound
申请人:BASF SE
公开号:EP2554613A1
公开(公告)日:2013-02-06
A process for the manufacture of semiconductor devices comprising the chemical mechanical polishing of elemental germanium and/or Si1-xGex material with 0.1 ≤ x < 1 in the presence of a chemical mechanical polishing (CMP) composition comprising:
(A) inorganic particles, organic particles, or a mixture or composite thereof,
(B) at least one type of an oxidizing agent,
(C) at least one type of an organic compound which comprises at least k} moieties (Z), but excluding salts whose anions are inorganic and whose only organic cation is [NR11R12R13R14]+,
wherein k} is 1,
(Z) is a hydroxyl (-OH), alkoxy (-OR1), heterocyclic alkoxy (-OR1 as part of a heterocyclic structure), carboxylic acid (-COOH), carboxylate (-COOR2), amino (-NR3R4), heterocyclic amino (-NR3R4 as part of a heterocyclic structure), imino (=N-R5 or -N=R6), heterocyclic imino (=N-R5 or -N=R6 as part of a heterocyclic structure), phosphonate (-P(=O)(OR7)(OR8) ), phosphate (-OP(=O)(OR9)(OR10) ), phosphonic acid (-P(=O)(OH)2), phosphoric acid (-O-P(=O)(OH)2) moiety, or their protonated or deprotonated forms,
R1, R2, R7, R9 is - independently from each other - alkyl, aryl, alkylaryl, or arylalkyl,
R3, R4, R5, R8, R10 is - independently from each other - H, alkyl, aryl, alkylaryl, or arylalkyl,
R6 is alkylene, or arylalkylene,
R11 R12, R13 is - independently from each other - H, alkyl, aryl, alkylaryl, or arylalkyl, and R11, R12, R13 does not comprise any moiety (Z),
R14 is alkyl, aryl, alkylaryl, or arylalkyl, and R14 does not comprise any moiety (Z),
and
(D) an aqueous medium.
一种制造半导体器件的工艺,包括在
化学机械抛光(
CMP)组合物存在下,对元素
锗和/或0.1≤x<1的Si1-xGex材料进行
化学机械抛光:
(A) 无机颗粒、有机颗粒或其混合物或复合材料、
(B) 至少一种氧化剂、
(C) 至少一种有机化合物,其中包括至少k}个分子(Z),但不包括阴离子为无机且唯一有机阳离子为[NR11R12R13R14]+的盐、
其中 k} 为 1、
(Z) 是羟基 (-OH)、烷氧基 (-OR1)、杂环烷氧基 (-OR1 作为杂环结构的一部分)、
羧酸 (-COOH)、
羧酸盐 (-COOR2)、
氨基 (-NR3R4)、杂环
氨基 (-NR3R4 作为杂环结构的一部分)、亚
氨基 (=N-R5 或 -N=R6)、杂环亚
氨基(=N-R5 或 -N=R6 作为杂环结构的一部分)、
膦酸盐(-P(=O)(OR7)(OR8) )、
磷酸盐(-OP(=O)(OR9)(OR10) )、
膦酸(-P(=O)(OH)2)、
磷酸(-O-P(=O)(OH)2)分子,或它们的质子化或去质子化形式、
R1、R2、R7、R9 相互独立地是烷基、芳基、烷芳基或芳烷基、
R3、R4、R5、R8、R10 相互独立地是 H、烷基、芳基、烷芳基或芳基烷基、
R6 是亚烷基或芳烷基、
R11 R12、R13 独立地互为 H、烷基、芳基、烷芳基或芳烷基,且 R11、R12、R13 不包含任何分子 (Z)、
R14 是烷基、芳基、烷芳基或芳烷基,且 R14 不包含任何分子(Z)、
和
(D)
水介质。