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How to prevent the bow and twist of PCB?
The IPC-6012 standard specifies that the maximum bow and twist of the PCB with SMT is ≤0.75. Some PCBs with higher requirements such as those with BGA design, required ≤0.5, and the bow and twist of PCB without SMT is ≤1.5. Calculation method of PCB warpa
2019-01-11
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The notice about China New Year （CNY） holiday of Shenzhen Vip Circuit Co., Ltd.
The notice about 2019 China New Year （CNY） holiday of Shenzhen Vip Circuit Co., Ltd.
2019-01-09
News
The Google radar chip project was approved, and the touch screen era will be end?
The Google radar chip project was approved, and the touch screen era will be end?
2019-01-07
News
Principles of PCB layout design
For large Components such as ICs, BGA and non-positioning connectors, 50 to 100 mil grid can be used for layout. For small compnents such as resistors, capacitors and inductors, 25 mil grids can be used for layout. Using grid points for layout can make th
2018-12-17
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What are the signal interferences in the PCB ?
Interference in the PCB can be divided into radiated interference and conducted interference. Radiated interference is the interference source that uses space as a medium to interfere its signal with another electrical network. Conducted interference use
2018-12-12
News
What is 5G ? What are the advantages of 5G mobile phones?
With the fifth generation mobile communication technology (5G) standard is frozen, 5G is gradually becoming commercial. Not long ago, the head of Lenovo mobile phone in China announced on Weibo that the worlds first 5G mobile phone came from Lenovo. Then
2018-12-10
News
Technical information of ROGERS material - High Frequency PCB and RF PCB Material
The most commonly used PTFE material or high frequency material in PCB is ROGERS. Especially the high frequency material PCB is widely used in communication, satellite, base station, aerospace and so on.
2018-12-03
News
370HR-Datasheet-Isola
370HR is a high performance 180°C glass transition temperature (Tg) FR-4 system for multilayer Printed Wiring Board (PWB) applications where maximum thermal performance and reliability are required
2018-11-28
News
Leading than Apple and Samsung: Huawei is the first to achieve 15 watts of wireless fast charging
The Mate 20 Pro achieves the current top level in terms of charging and battery life, which is regarded as the “pain point characteristic” by the user among the many features. First, the battery capacity is up to 4200 mAh, which is the basis for long batt
2018-11-27
News
Common mistakes in PCB layout design
1. Common mistakes in schematics:
(1) The ERC report that the pin without access signal:
a. I/O attributes are defined for the pins when the package is created;
b. The inconsistent grid attribute is modified when the component is created or placed, an
2018-11-26
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