Multi-layer circuit boards and single-layer circuit board how to distinguish
Panel, only a layer of lines, there is no copper inside the hole. Double-sided is the front and back are lines, lead through the hole there are copper.
Comparison of the most common, the most simple way to distinguish, pick up the light, the inner core is opaque, that is, all are black, is the multi-layer board, and vice versa is a single double panel, and single
Multi-layer circuit board production process will be in a single double-sided plate on the basis of the inner layer of the production process. The use of slice distraction can also be analyzed.
Circuit board is divided into single-sided circuit boards, double-sided circuit boards and multi-layer circuit boards, multi-layer circuit board is three or more layers of the circuit board.
