PROCESS FOR PREPARING NEGATIVE RELIEF IMAGES

Negative relief images are generated by a process comprising the use of cationic polymerization and plasma etching. The process comprises a process for generating a negative tone resist image comprising the steps of:(1) coating a substrate with a film that contains a cationic photoinitiator;(2) expo...

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Bibliographic Details
Main Authors ITO, HIROSHI, HULT, ANDERS, MACDONALD, SCOTT ARTHUR, WILLSON, CARLTON GRANT
Format Patent
LanguageEnglish
Published 13.07.1988
Edition4
Subjects
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Summary:Negative relief images are generated by a process comprising the use of cationic polymerization and plasma etching. The process comprises a process for generating a negative tone resist image comprising the steps of:(1) coating a substrate with a film that contains a cationic photoinitiator;(2) exposing the film in an imagewise fashion to radiation and thereby generating cationic initiator in the exposed regions of the film;(3) treating the exposed film with a cationic-sensitive monomer to form a film of polymer resistant to plasma etching; and(4) developing the resist image by etching with a plasma.
Bibliography:Application Number: EP19860100926