[i=s]This post was last edited by ohahaha on 2016-6-16 16:11[/i] [size=16px][font=微软雅黑][color=#3e3e3e][b]The article is divided into two parts: 1. Various factors affecting the price of a PCB board;[/
Crystal Growth Crystal slicing into wafers Wafer fabrication Functional design à module design à circuit design à layout design à mask production Process1) Surface cleaningA layer of about 2um of Al2O