发明名称 Etching of Block-Copolymers
摘要 The present disclosure relates to a method (10) for block-copolymer lithography. This method comprises the step of obtaining (12) a self-organizing block-copolymer layer comprising at least two polymer components having mutually different etching resistances, and the steps of applying at least once each of first plasma etching (14) of said self-organizing block-copolymer layer using a plasma formed from a substantially ashing gas, and second plasma etching (16) of said self-organizing block-copolymer layer using plasma formed from a pure inert gas or mixture of inert gases in order to selectively remove a first polymer phase. A corresponding intermediate product also is described.
申请公布号 US2014091435(A1) 申请公布日期 2014.04.03
申请号 US201314038565 申请日期 2013.09.26
申请人 TOKYO ELECTRON LIMITED;IMEC 发明人 CHAN BOON TEIK;TAHARA SHIGERU
分类号 H01L21/027 主分类号 H01L21/027
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