Контрактное производство электроники под ключ в Китае
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Услуги по сборке печатных плат

Услуги по сборке печатных плат

Review according to the "PCB checklist
02Apr
Kim 0 Замечания

Review according to the "PCB checklist

Therefore, careful consideration should be given to the placement of ground wires in the layout. Mixing all kinds of ground will cause unstable power supply. The following points should be noted in the design of ground wire:

About PCB high frequency circuit board wiring tips
02Apr
Kim 0 Замечания

About PCB high frequency circuit board wiring tips

The parameters of PCB board layer, the distance between signal wires, the electrical characteristics of the driver and receiver end, and the connection mode of signal wires all have a certain influence on the crosstalk.

The difference between PCB gold sinking process and gold plating process
30Mar
Kim 0 Замечания

The difference between PCB gold sinking process and gold plating process

Now the production of gold plate is rarely, in the actual trial process, 90% of the gold plate can be replaced by gold plate sinking gold plate, gold plate welding poor is his fatal shortage, is also the direct cause of Princecircuit to give up gold plate

Flexible circuit board FPC hot air leveling
30Mar
Kim 0 Замечания

Flexible circuit board FPC hot air leveling

it is easy to drill solder from the end of the covering layer to under the covering layer, especially when the bonding strength of the covering layer and copper foil surface is low, this phenomenon is more likely to occur frequently.

Line impedance
30Mar
Kim 0 Замечания

Line impedance

When a constant current is obtained from the power source, the transmission line looks like an impedance and has a constant impedance value, which can be called the "surge impedance" of the transmission line.

About the test coupon
30Mar
Kim 0 Замечания

About the test coupon

In principle, the smaller the test point, the better (of course, to meet the requirements of the test machine), the shorter the branch, the better.

Consider the overall aesthetics
30Mar
Kim 0 Замечания

Consider the overall aesthetics

The success of a product, one is to pay attention to the internal quality, two is to take into account the overall beauty, both are more perfect in order to consider the product is a success.

Maintenance knowledge
29Mar
Kim 0 Замечания

Maintenance knowledge

The basic knowledge of each device on the circuit board is repaired and tested until the bad parts are found and replaced, so a circuit board is repaired.

Hd understand the basic architecture of tight HDI board PCB
29Mar
Kim 0 Замечания

Hd understand the basic architecture of tight HDI board PCB

With the introduction of surface mount technology, automatic detection technology of circuit board is applied, and the packaging density of circuit board increases rapidly.

Detailed analysis of the basic knowledge of circuit board
29Mar
Kim 0 Замечания

Detailed analysis of the basic knowledge of circuit board

The circuit board makes the circuit miniaturized and intuitive, which plays an important role in the mass production of fixed circuit and the optimization of electrical appliance layout.

Prevent PCB will expire, and the disposal method after expiration
29Mar
Kim 0 Замечания

Prevent PCB will expire, and the disposal method after expiration

depending on the thickness of the gold layer, if the thickness is thin, the nickel layer may appear in the gold layer due to diffusion and oxidation, affecting the reliability, not inadvertently.

Why should the PCB board be blocked?
29Mar
Kim 0 Замечания

Why should the PCB board be blocked?

This process can ensure that the oil cover through the hole is good, the plug hole is smooth, the wet film color is consistent, the hot air leveling can ensure that the through hole is not tin, no tin beads in the hole, but it is easy to cause the ink pad

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