Expertise in R&D and Manufacturing of Home Appliances intelligent Controllers View all

What is the quality standard of printed circuit board?

Views : 1843
Author : elecontro
Update time : 2020-05-22 16:57:26
The quality inspection of printed circuit board generally includes appearance inspection, connectivity inspection and solderability inspection.

1. Standards for printed circuit board appearance inspection
1) Whether the surface of the printed circuit board is smooth and flat, whether there are bumps or scratches. Whether the through hole is leaky, wrongly drilled, or the surrounding copper foil is drilled.
2) The integrity of the wire pattern, cover the printed circuit board with a photographic film, and determine whether the wire width and shape meet the requirements. There are no trachoma or broken line on the printed line, whether there is a jagged gap on the edge of the line, whether there is a short circuit in the wire that should not be connected.
3) Whether the size of the outer edge of the printed circuit board meets the requirements.


2. Printed circuit board connectivity inspection standards
Multi-layer printed circuit board need to be tested for connectivity. Usually use a multimeter to check whether the printed circuit board is connected.

3. Printed circuit board solderability inspection standards
Inspection the wetting ability of the solder to the printed circuit board graphics when soldering components to the PCB circuit board.
Related News
The function of washing machine control board
The function of washing machine control board
Jan .30.2024
The function and sensitivity of the washing machine are mainly determined by the control board
Do you know what we need to pay attention for  the production of oven control panels?
Do you know what we need to pay attention for the production of oven control panels?
Jan .30.2024
There are several key points in the production of oven control panels that cannot be ignored
How to Choose and Buy an Oven Control Board?
How to Choose and Buy an Oven Control Board?
Jan .15.2024
Have you ever had the frustration of an oven that won't work properly? If so, it's likely that the oven's control board has malfunctioned.
Should I Repair or Replace My Oven?
Should I Repair or Replace My Oven?
Jan .05.2024
In the culinary symphony of a modern kitchen, the oven plays a pivotal role. When this essential appliance falters, it poses a quintessential dilemma: should one opt for repair or replace it altogether? This article delves into various aspects to consider, helping you navigate this conundrum.
pop_close
pop_main
Subscribe to Elecontro® below for more information