Analysis of PCB deformation causes :1. The uneven area of the copper plane on the circuit board will aggravate the bending and warping of the circuit board. 2. The weight of the PCB board itself may also cause the board to sag and deform.
Five general types of PCB circuit boards: single-sided circuit boards, double-sided circuit boards, multilayer circuit boards, rigid circuit boards, flexible circuit boards
Enterprises should pay attention to the circuit board proofing and proofing manufacturers of engineers and operators for good communication, and in the delivery of proofing materials when carefully check the relevant documents.
PCB color has no direct relationship with its performance, because the different color will not affect the performance of the circuit board. Black is the most prone to chromatic aberration, and the lines on black PCBS are difficult to read.
High density and high speed will increase the radiation of the system, while low pressure and high sensitivity will reduce the immunity of the system. EMI is a threat to the safety, reliability and stability of electronic eq
PCB circuit board four special plating methods: finger plating, through hole plating, coil continuous selection plating, brush plating.
Over-protection of the product can allow it to survive the harshest environmental conditions, but the "harshest environment" may be temporary or transient, so a resin solution with lower performance in the higher temperature range is usually suf...
PCB impedance refers to the resistance and reactance of the parameters, the alternating current plays an obstruction role. Impedance processing is essential in PCB circuit board production.
Traditionally, we define PCB boards with more than 4 layers as "multilayer PCB boards", and more than 10 layers as "high multilayer PCB boards".
There will be engineering review and approval of your information, if there is a problem with the first time to combine with you! In order not to delay your time, the combination of the form must be accurate, if not combined, we will stop production!
It is easy to determine that the IC is damaged. These changes are not necessarily caused by the IC damage, nor do they necessarily indicate that the IC is good. Because some soft faults do not cause a change in DC voltage.
Width and spacing of printed wire are important design parameters, which affect not only the electrical performance and electromagnetic compatibility of PCB, but also the manufacturability and reliability of PCB.
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