Solder Mask Both sides of the PCB are copper layers. In PCB production, the final copper layer is a smooth and unprotected surface. Although the chemical properties of copper are not as active as aluminum, iron, magnesium, etc., pure copper is easily oxidized when there’s water and oxygen. Because of the presence of oxygen and water vapor in the air, the surface of the pure copper will oxidize ver...
Rigid PCB Manufacturing Process Flow 1. Cutting Cutting is the process of cutting the copper clad laminate into pieces that can be reprocessed in the production process line. (1) Unit: Unit refers to a single small board designed by PCB design engineers. (2) Set: Set refers to the unity formed by putting together multiple Units for reasons such as improving production efficiency and facilitating p...
Printed Circuit Board Introduction PCB ( printed circuit board ) is a key component in the electronics industry and it is also a basic component. PCB carries all the components to be PCBA and then becomes the core of every electronic products. This article will give you a general idea about PCB, show the PCB composition and some main aspects. What is PCB？ PCB（Printed circuit board）is...
The outbreak in Malaysia continues, causing the local semiconductor industry to be hit. Severe epidemic has caused some chip factories to be closed. According to The Paper, the STMicroelectronics chip supplier in the Muar packaging plant in Malaysia with more than 3,000 employees, there are more than 20 employees sacrificed due to the epidemic, and hundreds of people have been infected, facing the...
