Method for preparing multi-sheet printed circuit board
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- E TEEN
- Publication Date
- 2008-11-05
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 Figure 2 Figure 3
Abstract
Description
technical field
[0001] The invention relates to a method for improving the manufacture of printed circuit boards, in particular to a method for replacing unqualified single-chip areas in the manufacturing process of multi-piece printed circuit boards. Background technique
[0002] The English name of printed circuit board is Printed Circuit Board, or PCB for short. As the name suggests, printed circuit board is a circuit product made by printing technology. In the early days, circuit boards covered the surface of insulating boards by melting metal to make the required circuits. Because they can be mass-produced and the volume can be reduced, in addition to improving convenience, the price can also be reduced. After 1936, the circuit board manufacturing method was mainly to select the insulating substrate covered with metal with corrosion-resistant ink as the area, and remove the unnecessary area by etching. In recent decades, electronic products have developed rapidly. Prod...