专利名称：Process for selective etching of polymeric
materials embodying silicones therein
发明人：Leonard Stein申请号：US05/720584申请日：19760907公开号：US04140572A公开日：19790220
摘要：Titanium is employed as a masking material for the selective etching of acoating material of a polyimide-silicone copolymer disposed on selective surface areas ofelectronic devices.
申请人：GENERAL ELECTRIC COMPANY
代理人：Donald M. Winegar,Joseph T. Cohen,Charles T. Watts
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