as PCB substrate epoxy resin (see the column of PCB substrate resin chapter), PCB substrate reinforcement materials, copper foil and other manufacturing technologies have not realized commercial production.
Otherwise, you may be forced to make modifications and redesign your PCB stack structure.
Any circuit board material used in millimeter-wave circuits should have a low TCDk value to minimize the impact of Dk changes on circuit performance (such as phase shift).
these changes in Dk will introduce certain impedance errors when designing millimeter-wave transmission lines using computer simulation software.
to produce a conductive channel on the circuit board that allows the later process to complete the connection between the upper/lower or intermediate circuit layers
Connectivity through holes For multi-layer circuit boards to conduct connectivity tests, the purpose is to find out whether the PCB graphics have connectivity.
Some do not notice this phenomenon, directly adjust the sense resistance or working frequency to reach the required current, which may seriously affect the service life of LED.
These products and solutions can be applied to mobile devices such as smartphones, tablets and wearables, as well as high-speed data communication devices.
The layout of the basic structure such as PAD, design rule check (DRC), parameter extraction (EXT) and layout circuit control (LVS) associated with the design tool are the key to the successful production of the designed chip in the wafer factory. This is
As we all know, circuit protection is mainly to protect the components of electronic circuits from damage under the circumstances of overvoltage, overcurrent, surge, electromagnetic interference, and so on, and the selection of appropriate circuit protect
When working, the value of Vg (that is, the voltage value of the input signal) is a fixed value, which is either high level (may fluctuate) or low level.
The promotion and application of EDA technology and SCM technology in each industry, to the continuous improvement of economic efficiency of each industry provided , promoting the long-term development of Chinese software industry, is of great significanc
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