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2019
DATE
01 - 11
Quality control requirements for power boards
Compared to other types of boards, power board requirements are high reliability and copper thickness requirements are special. These two points are just a difficult point for the control of the circuit board factory. How to produce a high-reliability power circuit board? Describe from the following
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2019
DATE
01 - 04
PCB production by hole function classification of which kinds of holes
What kind of holes are there in the function of PCB production by hole?PCB fabrication is classified according to the function of the holes. From the perspective of function, the vias can be divided into two types: one is used as an electrical connection between the layers; the other is used for fix
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2018
DATE
12 - 28
Benefits of PCBA SMD Processing Samples for Manual Patching
The process flow of PCBA processing is very complicated, including PCB board process, component procurement and inspection, SMT patch assembly, DIP plug-in, PCBA test and many other important processes.
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2018
DATE
12 - 20
The difference between positive and negative PCB boards
Negative film board: Generally speaking, we are using the tenting process. The liquid used is acid etching negative film. Because the film or copper surface is transparent after the film is made, the unnecessary part is black. After the line process exposure, the transparent part is chemically harde
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2018
DATE
12 - 13
Some reasons for the poor tin on the tin surface of the circuit board
1. Storage environment and transportation: This is the middle link between the circuit board factory and the patch factory. Generally, the circuit board rarely appears in stock, but the general inventory requires the storage environment to have suitable dry humidity, complete packaging, and lightest
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2018
DATE
12 - 07
Talking about the precautions of circuit board maintenance
In the process of using the circuit board in peacetime, it is often caused by improper use, incorrect processing or aging of components, which causes the circuit board to work abnormally or even burn out. At this time, it is necessary to repair the circuit board. Next, I will introduce you to the pr
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2018
DATE
11 - 29
SMT chip processing basics
First, the characteristics of SMTThe assembly density is high, the size of the electronic product is small, and the weight is light. The volume and weight of the chip components are only about 1/10 of that of the conventional plug-in components. After the SMT is generally used, the volume of the ele
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2018
DATE
11 - 23
Terminology summary of letters on the board
Rx is a resistor, there are many resistors in the circuit diagram, according to the serial number, R1, R2...Cx is a non-polar capacitor, anti-interference capacitor at the input of the power supply;IC integrated circuit module;Ux is an IC (integrated circuit component);Tx is the test point (for fact
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2018
DATE
11 - 15
PCBA test fixture production point analysis
PCBA testing is an extremely important part of the entire electronic manufacturing service. It can strictly control the quality of shipments in the final stage, and find problems in time to adjust the previous processes such as SMT and DIP, optimize the process, and realize the layering with a detec
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2018
DATE
11 - 08
Introduction of the process flow of pcb copy board
The copy board is also called the change board, which is the reverse technology research on the designed PCB board. With reference to a large amount of information, the process of copying boards is summarized as follows: The first step is to get a PCB. First, record the model, parameters, and positi
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