Purpose and precautions of reserved process edge in PCB design: Reserved process edge is the part added on both sides or four sides of PCB board to assist patch plug-in welding, which is mainly to assist production and does not belong to the PCB board. It
PCB design layer number to consider the following problems: 1, use,2, required signal type,3, through hole type,4, required signal layer density and number,5, required plane number,6, manufacturing cost,7, delivery time,
Analysis of the deformation causes of PCB board in the process of processing: 1. Incoming material of copper clad plate: 2. Pressing: 3. Welding resistance, character and other baking process: 4. Hot air solder leveling: 5. Storage
Single-side backwelding boards are rarely used now, because double-side backwelding can save space on the circuit board, which means it can make the production smaller.
PCB board test system will have a new design idea, the use of automatic test system based on USB bus and virtual instrument design idea, give full play to the role of the computer
new energy electric vehicles, module board, industrial control circuit board, medical circuit board, intelligent security PCB board, automotive electronic communication circuit board
The post-process can only be screened probabilistic through destructive experiments, and it is impossible to effectively analyze and monitor a single PCB board.
This battery, this battery, that battery, unfortunately, has not yet been mass-produced on the road, and there are several experimental bus routes in use.
many times if the site sorting, rectification and other work to do, then some of the existing quality problems will improve a lot.
In the process of PCB board copying, since the circuit board needs to be split, the integrated circuit and other components are removed to make BOM list, and the bare PCB board is scanned and copied.
The platen method of this new concept is called "mass platen" or "large platen". In recent years, there have been many professional OEM pressing industry.
Halogen-free PCB printed circuit boards have low water absorption and meet the requirements of environmental protection, in other performance can also meet the quality requirements of PCB board.
Telegram