The structural design, design parameters, material chosen and manufacture process of multi-pinhole compound die of main printedcircuit board for large screen color TV are introduced.
介绍大屏幕彩色电视机主印制板多小孔复合模的模具结构、设计参数、材料的选用和制造工艺等。
2
Introduce an alkaline copper etchant used for the manufacture of printedcircuit boards and the way it works.
介绍了一种在现代印制板生产中使用的碱性蚀刻盐及其工作原理。
3
The invention discloses a printedcircuit board assembly and manufacture method thereof.