Photoimageable compositions containing fugitive colorants

Details Photoimageable compositions containing fugitive colorants Photoimageable compositions containing fugitive colorants

G - Physics

03

F

96/150

G03F 7/038 (2006.01) G03F 7/105 (2006.01) H05K 3/28 (2006.01) H05K 1/02 (2006.01)

Patent

CA 2034623

PHOTOIMAGEABLE COMPOSITIONS CONTAINING FUGITIVE COLORANTS ABSTRACT OF THE DISCLOSURE A photoimageable composition used for forming a solder mask on a printed circuit board contains a fugitive dye which can be rendered colorless by heat and/or UV radiation after a layer of the photoimageable composition has been exposed to patterned actinic radiation and developed. -??-

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