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Published by：
KEYOU PCB
June 25,2019
PCB is the abbreviation of Printed Circuit Board. A conductive pattern which is formed on a conductive material in a predetermined design as a printed circuit, a printed component, or a combination of...
Published by：
KEYOU PCB
June 24,2019
Taking into account the difference in circuit board product process and storage conditions, the printed circuit board should be used in a timely manner (recommended within 24 hours), and it is recomme...
Published by：
KEYOU PCB
June 20,2019
What are the layers of the Printed circuit board, what are the meanings and functions of each layer, the following for your reference:
1.Signal layer
The signal layer is mainly used to arrange t...
Published by：
KEYOU PCB
June 18,2019
For surface mount boards, especially for BGA and IC mounting, the via hole must be flat, positive and negative 1 mil, no red tin on the edge of the via hole; tin beads in the via hole, in order to rea...
Published by：
KEYOU PCB
June 17,2019
1. Why the circuit board requirements are very flat
In the automated instrumentation line, if the printed board is not flat, it will cause misalignment, the components can not be inserted into the ...
Published by：
KEYOU PCB
June 11,2019
OSP is the abbreviation of Organic Solderability Preservatives. The Chinese translation is organic solder mask, also known as copper protector. It is also known as Preflux in English. Simply put, OSP ...
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