Nov. 15, 2021
With the rapid development of the electronic industry, PCB wiring is becoming more and more precise. Most PCB manufacturers use dry film to complete pattern transfer, and the use of dry film is becoming more and more popular. However, in the process of after-sales service, I still encounter many misunderstandings when using dry film, which are summarized for reference.
Nov. 15, 2021
PCB manufacturing is a very complex process. There are some precautions that should be paid attention to in the PCB etching process.
Nov. 12, 2021
PCB ink refers to the ink used in printed circuit board (PCB).In the manufacturing process of printed circuit board, screen printing is one of the indispensable and important processes. In order to obtain the fidelity of image reproduction, the ink must be of excellent quality.
Nov. 08, 2021
The pcb development operation is generally carried out in the pcb developer machine. Good development effect can be obtained by controlling the development parameters such as developer temperature, transmission speed and spray pressure.
Nov. 01, 2021
Why are there halogen free requirements for PCB board now? 1, Halogen free substrate material: According to jpca-es-01-2003 standard, copper clad laminates with chlorine (C1) and bromine (BR) contents less than 0.09% wt (weight ratio) are defined as halogen-free copper clad laminates.(meanwhile, the total amount of CI + br ≤ 0.15% [1500ppm]). Halogen free materials include tu883 of TUC, DE156 of Isola, greenspeed ⑧ series, s1165 / s1165m of Shengyi, S0165, etc.
Oct. 29, 2021
At present, the typical process of printed circuit board (PCB) processing adopts "Pattern electroplating method". A layer of lead tin corrosion resistant layer is pre plated on the copper foil to be retained on the outer layer of the board, the pattern part of the circuit, and then the rest of the copper foil is chemically corroded, which is called etching.
