use of semiconductor manufacturing process

Posted by Liu Er over 6 months ago

electronic switches and so on. DVD player with system control, video encoding, MPEG decoding, audio signal processing, sound effects, RF signal processing, digital signal processing, servo, motor drive and so on. VCR with system control, servo, driver, audio processing, video processing. Integrated circuit board production process 1, printed circuit board. Printed good printed circuit board with transfer paper, pay attention to the sliding side of their own, usually printed two circuit boards, that is, a piece of paper printed on the two circuit boards. In which the best choice for printing production of circuit boards. 2, cutting the CCL production of circuit boards with graphic illustration. CCL, which is covered with copper film on both sides of the circuit board, the CCL cut the size of the circuit board, not too large, in order to save material. 3, pretreatment CCL. With fine sandpaper on the surface of the CCL polished oxide layer to ensure that when the transfer circuit board, the toner on the thermal transfer paper can be firmly printed on the CCL, polished good standard is the board is bright, no obvious Stains. 4, transfer circuit board. Printed circuit board cut into appropriate size, Printed side of the circuit board affixed to the CCL, aligned CCL into the ironwood decking vs composite price outdoor pavilion blueprints pvc coated chain link fencing mesh