source:News release time:2022-11-07 Hits: Popular:PCB Assembly company
Printed circuit board, also known as printed circuit board, is the provider of electrical connection of electronic components. Its development has a history of more than 100 years; Its design is mainly layout design; The main advantage of using circuit board is to greatly reduce wiring and assembly errors, and improve the automation level and production labor rate. Today, we will learn about the exposure skills and basic knowledge of PCB.
First, exposure
Exposure means that when PCB manufacturers process boards, under ultraviolet light irradiation, photoinitiators absorb light energy and decompose it into free radicals, which then lead luminous polymerization monomers to conduct polymerization and cross-linking reaction, and form a large molecular structure that is insoluble in dilute alkali solution after reaction. The exposure is generally carried out in the automatic double-sided exposure machine. Now the exposure machine can be divided into air cooling and water cooling according to the different cooling methods of the light source.
Read recommendations:
Multilayer Printed Circuit Board
Small BGA Multilayer Printed Circuit Board 6 Layer 3mil Immersion Gold
Blue Solder Mask Double Sided PCB Board High TG TG170 S1000-2
Welcome information, we will answer for you quickly
No. 1 Jingtian Road, Xinsheng community, Longgang District, Shenzhen, Guangdong, China
+86 13715096176
Whatsapp/WeChat : +86 13715096176
Kevin.kuang@xzgcircuits.com
Return
