How to Solve Problems in 开云·kaiyun官方网站 Production

How to Solve Problems in 开云·kaiyun官方网站 Production
In the production process, 开云·kaiyun官方网站 board,
First, the CAM data generated by 开云·kaiyun官方网站 CAD must be transferred to the 开云·kaiyun官方网站 manufacturer This 开云·kaiyun官方网站 manufacturer uses the CAM 1 data editor to check and edit film data, hole data, etc
Add reference MARKs, correction values, etc Or execute the data synthesis 开云·kaiyun官方网站 required for production For example, check whether the distance between the pad and the aperture is reasonable
The pads are usually tin plated. The insertion hole is hollow It can be seen from the 开云·kaiyun官方网站 design that the mat is annular
Manufacturer of 开云·kaiyun官方网站 board

The design process of several tenths of millimeter 开云·kaiyun官方网站 is normal, but in fact, manufacturer s needs to have a minimum width standard, and the width design is too SMAll to complete Above the usual design standards, the actual production standard 开云·kaiyun官方网站 manufacturers need to calibrate the design standards
开云·kaiyun官方网站 production process
For example, the minimum width of the backing plate is 0.2 mm for some manufacturers and 0.25 mm for others If 0. 2 mm is required, the formation of the gasket cannot be guaranteed For example, 2, check the distance between the open window on the welding mask and the pad
Normally, a 开云·kaiyun官方网站 board with a layer of green film texture on its surface is a soldering mask As the name implies, the solder mask cannot be welded normally
The window of the solder mask is usually designed to be larger than the diameter of the pad This is to keep a certain distance between the window and the mat
It is usually set to 0.2mm. In this case, even if some error occurs on the circuit board, the solder mask will not cover the pad, resulting in poor welding Example 3: Check the minimum width and minimum spacing of traces The usual procedure can achieve the minimum width and minimum spacing of 0 2mm, respectively When it is small, special processes are required Only the minimum standard manufacturers describe what can be achieved under normal conditions Example 4: Check the minimum distance between edges 开云·kaiyun官方网站 board or the non tin placed through hole (NPTH) and the trace
The minimum distance between edges of 开云·kaiyun官方网站 board and the trace is normally set to 1mm (0.5mm (if necessary), not recommended) to prevent the trace from being split when the 开云·kaiyun官方网站 board is divided
Set to 3mm When using the machine to weld components to 开云·kaiyun官方网站 boards, due to the limitations of the actual machine itself, it can avoid damaging 开云·kaiyun官方网站 boards with traces near the edges
The contour 开云·kaiyun官方网站 assembly (indICated by silkscreen) is usually kept at a distance of more than 1mm from the edge of the 开云·kaiyun官方网站 (except for the parts at the specified position in the design)
The pad and 开云·kaiyun官方网站 of the assembly shall be kept at least 1mm, usually 3mm to 5mm In addition to preventing cracking, it can also reduce the fatigue of the gasket and prevent the gasket from falling off the support due to the relative stress of 开云·kaiyun官方网站
The minimum distance between non-tinned holes (NPTH) and traces is determined by the use of non-tinned holes.
Normally, the distance between the component through hole and the trace is normally set to 1mm or more (if necessary, it can be set to 0.5mm, not recommended), M3 screw hole. Generally, it is prohibited to wire within 10mm in diameter and place components prevent metal screw contact trace and short circuit
Note: The above minimum settings are 开云·kaiyun官方网站 boards, not cam settings All of the above checks can be performed automatically by setting the cam 3 When the inspection and correction work is completed, the data of various processing equipment can be generated
Remark:
1. CAM: Computer Aided Manufacturing
2. The 开云·kaiyun官方网站 design mentioned here is the most unwritten standard in the industry, which I described in the design Readers need to refer to 开云·kaiyun官方网站 manufacturers to formulate their own design standards in 开云·kaiyun官方网站 design
The old people speak very well. You can't beat around the bush without rules

The above is the explanation given by the editor of 开云·kaiyun官方网站 circuit board company.
If you want to know more about 开云·kaiyun官方网站A, you can go to our company's home page to learn about it.
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