Multilayer PCB production process

Speaking of plywood, I do not know my friends to know how much? Xiao Bian gave you to explain the plywood production process, and friends together to look at it. The method of making multilayer generally consists of an inner layer graphics to do first, and then etching made in print single or double-sided board, and included specific interlayer, and then heated, pressurized and be bonded, as after drilling holes are plated through-hole method is the same as double-sided. The basic production method dating back to the labor laws of the 1960s has not changed much, but with the materials and process technologies (eg: Lamination bonding technology to produce glue residue, the film improve when addressing drilling) more mature, appended It multilayer feature is more diversified. From the above http://www.zbmtp.com/, please indicate the source.