Coverlay is a material laminated to the outside layers of the circuit to
insulate the copper conductor. Below are types of coverlays used at All Flex.
Note: Coverlay openings can be individual bared
Both photoimagable coverlay and soldermask are produced by a photo controlled process and are used for tight pad spaces. This process enables unique shapes to be applied anywhere on the circuit. Photoimagable coverlay is usually not used with 2 oz. copper or above. Due to the thickness of the copper, photoimagable coverlay and soldermask will not conform around the area of some copper features.