Photosensitive solder resist material with short exposure time and preparation method thereof
The invention discloses a photosensitive solder resist material with short exposure time. The photosensitive solder resist material comprises the following components in parts by weight: 35-40 parts of photosensitive resin, 5-10 parts of polyurethane acrylate, 5-10 parts of acrylic acid monomers, 4-...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
06.12.2019
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a photosensitive solder resist material with short exposure time. The photosensitive solder resist material comprises the following components in parts by weight: 35-40 parts of photosensitive resin, 5-10 parts of polyurethane acrylate, 5-10 parts of acrylic acid monomers, 4-8 parts of epoxy resin, 1-4 parts of a pigment, 25-35 parts of a filler, 5-10 parts of a photoinitiator, 1-5 parts of an auxiliary agent and 3-8 parts of a solvent. Photosensitive resin is obtained by carrying out a polymerization reaction on acrylic acid and o-cresol formaldehyde epoxy resin, and then sequentially reacting a reaction product with anhydride and glycidyl methacrylate. The exposure time of the prepared photosensitive solder resist material is short, and is only 5-10 seconds, and the exposure time of traditional ink is generally about 20-25 seconds, so that the exposure time is shortened by 1-5 times compared with the traditional exposure time; the photosensitive solder resistmaterial also has the adv |
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Bibliography: | Application Number: CN201910840183 |