One The necessity of PCB board

First of all, in terms of quantity, PCB electronic engineers should conduct small batch trial production (PCB proofing) to the factory before mass production after designing the circuit and completing the PCB Layout. In the proofing process, various problems on the board may be found, so as to improve. This is to carefully choose the number of proofing, in order to effectively control the cost. So the number of 5, 10 tablets is very common. Secondly, the PCB board designed by different engineers is not the same information, the size of the board is not the same, 5CMX5CM, 10CMX10CM and so on all kinds of size! However, the size of raw materials for PCB processing is generally 1.2×1 (m). If a raw material board of 1.2×1 is only used to produce 5 PCB boards of 10cmx10cm, the waste of this material will be obvious, and the increase of cost is what both the supply and demand do not want to see. Therefore, PCB proofing manufacturers in order to save costs and improve production efficiency, different customers, different sizes, the same process of PCB board together for processing and production, and then cut the shipment to customers.

Two Our PCB sample board assembly process

1. Plate size design

Plate size design refers to the design of plate size that can optimize the quality of customers’ plates, lowest production cost, highest production efficiency and highest utilization rate of plates according to the unit size of finished products provided by customers, combined with the processing capacity of each manufacturing process equipment in the factory and referring to the size specifications of plates

2. Factors influencing the size design of the Mosaic

The size design of the plate is not only affected by the size of the finished product unit of the customer, but also restricted by the size specifications of the upstream supplier. Therefore, the factors that influence the size design of the Mosaic come from various aspects, such as

Customers: Finished unit size, plate shape, shape processing method, surface treatment method, number of layers, finished plate thickness, special processing requirements, etc.

Factory: Lamination mode (main influencing factors), splicing, pipe position mode, processing capacity of each process equipment, shape processing mode and so on.

Suppliers: Sheet size specifications, B sheet size specifications, dry die size specifications, RCC size specifications, copper foil size specifications, etc.

3. Our company’s design rules for plate size (mainly double panels)

Puzzle figure: Introduction of PCB sample board process

Double panel unit spacing: general double panel unit spacing 1.5mm-1.6mm, usually designed for 1.6mm. Double panel general plate edge: 4mm-8mm. Double panel best plate size: commonly used sheet size: 1245mmX1041mm, the best cutting size 520X415, 415X347, 347×311, 520×347, 415×311, 520×311, etc.