CAMTECH PCB Multilayer PCB Exposure

Описание

The purpose of the PCB circuit board exposure: through ultraviolet light irradiation and phenanthrene block for the PCB board. The transparent place of the film and the dry film undergo optical polymerization reaction, for the PCB manufacturing, that is, under ultraviolet light irradiation. The photoinitiator absorbs the light energy and decomposes into free radicals, and the free radicals initiate light again The polymerized monomer undergoes polymerization and cross-linking reaction, and forms a macromolecular structure insoluble in dilute alkali solution after the reaction.

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