Some ways to control quality in PCBA process

control-quality-PCBA-process

The PCBA processing process involves PCB manufacturing, components sourcing and checking, SMD assembly, DIP process, programming, testing, aging and a series of the process, If the supply chain and manufacturing chain too long. it will cause many PCBA boards happen failures. But the quality control of PCBA process will avoid the most of failure of…

Specification and requirement of conformal coating

Requirements for coating A Coating thickness coating film thickness control in 0 05mm 0 15mm Dry film thickness 25um 40um B Secondary coating In order to ensure the thickness of products with high protection requirements, secondary coating can be carried out after the film is fixed whether to carry out secondary coating according to the demand shall be determined

Conformal coating also seen as PCB coating is a PCB assembly process which aims to protect the final PCBA products from nature damage and become more durable. Typically , the conformal coating material is thin polymeric film. The PCB assembly products which are processed by conformal coating can resistant some environmental factors, such as moisture,…

How to identify the quality of PCB board?

PCB-board

With the rapid development of mobile phone, electronics and communication industries, the PCB circuit board industry continues to grow and grow rapidly, at the same time, people have higher requirements on layer number, weight, precision, material, color and reliability of PCB. So how do you tell if a PCB is good or bad?   However,…

What defects can be inspected by AOI in SMT Assembly processing?

PCBA-Image-recognition-and-contrast-detection

Working principle of AOI detector testing Application of AOI in SMT processing in a variety of forms, but its basic principle is the same (as shown in Picture 1), the analyte with optical instruments for graphics, usually by sensors (cameras) to obtain the test figure like lighting and digitization, and in some way to compare,…

What is SMT assembly?

PCBA-SMT-assembly

What is SMT assembly?   SMT assembly refers to a series of processes on the basis of A PCB (Printed Circuit Board), which is a Printed Circuit Board. SMT is the abbreviation for Surface Mounted Technology, the most popular Technology and process in the electronic assembly industry. Electronic circuit Surface Mount Technology (SMT) is called…

What are the reliability tests in the PCB assembly manufacturing?

pcb-test

What are the reliability tests in the PCB assembly manufacturing?   PCBA manufacturing is by no means a combination of adding material procurement on the basis of SMT processing. Any problem of any material will affect the overall result of PCBA board, which requires us to have sufficient material detection ability, supplier management ability, technical…

What You Need To Know About PCB Manufacturing And PCB Assembly?

design-pcb

What You Need To Know About PCB Manufacturing And PCB Assembly? What Are PCB ? PCB is the acronym of Printed Circuit Board, a mechanical base that contains tracks and footprints reflecting the schematic of the design. Printed circuit boards (PCBs) are the foundational building block of most electronic devices. From a simple single board used…

16 requirements of SMT process for component layout design

16 requirements of SMT process for component layout design The layout of components should be designed according to SMT electronic processing equipment and process characteristics and requirements. Different processes, such as reflow soldering and wave soldering, have different layouts for components. When double-side reflow soldering, there are different requirements for the layout of side A…