<form id="fjflz"></form>

          <form id="fjflz"></form>

            <noframes id="fjflz">

              中文版     ENGLISH 
              Contact UsMore>>
              Shenzhen Baiqiancheng Electronic Co.,Ltd.(BQC)
              Address:No.343,Changfeng Road,Changzhen Community, Guangming New District,Shenzhen,Guangdong Province, China 518132
              Industry NewsNews > Industry News > What effect does fingerprints on SMT patch processing?    

              What effect does fingerprints on SMT patch processing?

              Hits:1  Add Date:2021/8/6

              In the process of SMT patch processing,it is inevitable to encounter the board during manual operation. Will thefingerprints affect a batch of processing? Are there any adverse effects? Next,please understand the influence of fingerprints on SMT patch processing.


              l  First, the bare hand touch panel beforeresistance welding will result in poor adhesion of green oil and blister andfall off of hot air at ordinary times.


              l  Second, the bare contact plate makesthe copper on the plate surface react and oxidize in a very short time. After along time, there are obvious fingerprints after electroplating, the coating isuneven, and the product appearance is seriously poor.


              l  Third, there is fingerprint grease onthe plate surface before printing wet film and screen printing circuit and filmpressing, which is easy to reduce the adhesion of dry / wet film. Duringelectroplating, the coating and coating are separated, and the gold plate iseasy to cause the plate surface pattern. After resistance welding, the platesurface is oxidized and presents yin-yang color.


              l  Fourth, during the process fromresistance welding to packaging, bare hand contact with the plate surface willlead to unclean plate surface, poor weld ability or poor bonding quality.


              PCB Assembly, PCBA Contract Manufacturing, Electronic Manufacturing Services Provider, Electronic OEM/ODM services,PCBA OEM/ODM, Full Turnkey Manufacturing,
              Box Build.SMT Assembly, China CM factory, China Contract Manufacturing Supplier, China PCBA supplier, China PCBA factory