Title: Uv radiation blocking protective layers compatible with thick film pastes
Application Number: 200580011954 Application Date: 2005.02.04
Publication Number: 1942824 Publication Date: 2007.04.04
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G03C1/492
Applicant(s) Name: Du Pont Address:
Inventor(s) Name:
Attorney & Agent: libing ai
Abstract:
    This invention relates to novel compositions comprising a protective polymer layer and a UV blocking agent. This is used in the fabrication of electronic devices using thick film pastes. The present invention is also an electronic device fabrication process using the compostionss. The protective polymer layer is fabricated from materials, which are insoluble after irradiation in the ester-type solvents contained in the thick film paste. By appropriate selection of protective film polymers, the protective film can be compatible with the thick film paste and can be further used to shield portions of the thick film paste from UV irradiation.
Time: 10
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