The first step to enter the PCB circuit board system is to set the PCB preset background, including setting the grid volume and type, cursor type, version layer reference, wiring reference, etc.
Failure to provide sufficient time and effort for the PCB layout and wiring phase of the design can lead to problems in the manufacturing phase or functional deficiencies as the design moves from the digital domain to the physical reality.
For you to introduce the circuit board design precautions and operation skills :1, the processing level definition to be clear, 2, the distance from the copper foil frame can not be too close, 3, can not use the filler block picture welding pad, 4, electr
What are the features of SMT processing BGA assembly: 1, the BGA pin (welding ball) is located under the package body, 2, before mounting must confirm whether it meets the process requirements, 3, in the PCB design should be as far as possible to lay it a
The most important material for printed circuit boards is copper, from which most boards are made.
As long as the circuit board has detected the problem, then maintenance is easy. The following is a summary of the circuit board maintenance basic formula, convenient and practical.
This paper introduces a new maintenance tool, on-line tester, and focuses on the function characteristics of the tester and the methods and steps of using it to repair the circuit board.
The lead inductance of patch resistors and capacitors is greatly reduced, which has great advantages in high frequency circuits. The disadvantage of surface mounted components is that they are not easily welded by hand.
The use of PCB solder solder has become so common that it is most unusual to see that there is no solder for any PCB to resist covering, except for some home built circuits today, and even many prototype boards have solder solder
Usually does not contain volatile solvent, low temperature fast curing, can meet the requirements of mass production automation, high production efficiency, good product quality, heat resistant curing flux accounts for more than ten energy.
Integrated circuit board is the use of semiconductor production process, in a small monocrystalline silicon wafer production of many transistors and resistors, capacitors and other components, and in accordance with the multi-layer wiring or tunnel wiring
PCB design is based on the circuit schematic diagram to achieve the function required by the circuit designer. Excellent design can save production cost, achieve good circuit performance and heat dissipation performance.
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