Description:
FR4 Eurocard Compared to other sizes of FR4 substrates, it is suitable for normal applications with a board thickness of 1.6 mm and a copper thickness of 35 μ m. The developer concentration is 25 g/l, 690-849 approved UL, CSA (K130 and above) photoresist and copper-clad printed circuit board materials are suitable for manufacturing high-quality printed circuit board standards. High quality FR4 epoxy glass substrates and APPE glass substrates are specifically used for high-frequency applications under applicable conditions. First, the board with protective coating is developed with a semi strong universal developer, then exposed to ultraviolet light, and finally etched with ferric chloride hexahydrate crystal solution. Pre coated photosensitive layer with positive photoresist and black plastic peeling film to protect photoresist/pre coated photosensitive plate
Description:
FR4 Eurocard Compared to other sizes of FR4 substrates, it is suitable for normal applications with a board thickness of 1.6 mm and a copper thickness of 35 μ m. The developer concentration is 25 g/l, 690-849 approved UL, CSA (K130 and above) photoresist and copper-clad printed circuit board materials are suitable for manufacturing high-quality printed circuit board standards. High quality FR4 epoxy glass substrates and APPE glass substrates are specifically used for high-frequency applications under applicable conditions. First, the board with protective coating is developed with a semi strong universal developer, then exposed to ultraviolet light, and finally etched with ferric chloride hexahydrate crystal solution. Pre coated photosensitive layer with positive photoresist and black plastic peeling film to protect photoresist/pre coated photosensitive plate
Description:
Eurocard Epoxy glass printed circuit boards with a weight of 305g/m2 are non photoresist materials recognized by UL, CSA (K130 and above) photoresist and copper-clad board materials, suitable for manufacturing high-quality printed circuit board standards. High quality FR4 epoxy glass substrates and APPE glass substrates are specifically used for high-frequency applications. The boards with protective coatings are first developed with a semi strong universal developer, then exposed to ultraviolet light, and finally etched with a solution of ferric chloride hexahydrate crystals. Pre coated photosensitive layer with positive photoresist and black plastic peeling film to protect photoresist/pre coated photosensitive plate
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