RESIN-COATED METAL PLATE AND METHOD OF DRILLING PRINTED WIRING BOARD USING THE METAL PLATE

摘要

According to the invention, the high smoothness superior drill penetration rate drilling a hole in the side of the inner wall, the distance between the generated volume large and the adjacent drilling holes of high quality under high-density drilling conditions is reduced compared to the (pitch) is short and damage potential drilling and a resin used as a high efficiency for drilling the printed wiring board that can be provided to correct position-coated metal plate is provided; By using a metal plate it is provided a method for drilling a printed wiring board. The resin used as the protective backing after the drilling of the printed wiring substrate-coated metal sheet comprising a resin film comprising a thermoplastic resin which is coated on at least one surface of the metal plate and the metal plate; In the thermoplastic resin, the melting peak temperature is in the range of 60 ℃ to 120 ℃, from the TMA curve, while the temperature difference is that the penetration of the probe changes in a temperature range of 20 ℃ to 200 ℃ to 100% from 10% of the resin thickness within a period of in the range of 5 ℃ to 30 ℃. ; Resin-coated metal plate, a printed wiring board, and then protective backing plate, metal plate, a resin film