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Method for increasing board utilization rate during manufacture of PCB (printed circuit board)

A PCB board and utilization rate technology, which is applied in the field of PCB manufacturing, can solve the problem of high cost of board materials, and achieve the effect of cost saving

Inactive Publication Date: 2013-04-03
VICTORY GIANT TECH HUIZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After this design, the remaining boards will be discarded. With this design method, the utilization rate of the boards is generally only 70-80%, resulting in high cost of the boards.

Method used

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  • Method for increasing board utilization rate during manufacture of PCB (printed circuit board)
  • Method for increasing board utilization rate during manufacture of PCB (printed circuit board)

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Such as figure 1 As shown, taking a 2-layer board as an example, if the size of the SPNL board provided by the customer is: 346.5*195mm, the board edge design according to the industry custom is generally to add 10mm to each side of the X and Y directions, and three unit boards are one Board group, the gap between each unit board is set to 2mm, then each board group: X=346.5+20=366.5mm, Y=195*3+4+20=609mm, if the selected board size is: 41* 49 (1041*1245mm), utilization rate: 78%.

[0017] If it is changed to an asymmetrical edge, such as figure 2 As shown, the side of the board in the X direction is designed to be large (increased by 10mm) and small (increased by 7.5mm), the utilization rate will be much higher, and the substrate will be well utilized, as follows:

[0018] X=346.5+(10+7.5)=364mm, 195*3+4+20=609mm, the selected substrate is: 43*49 (1092*1245mm), the utilization rate is increased to 89.5%, and the remaining waste of the board is very little.

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Abstract

The invention relates to a method for increasing the board utilization rate during manufacture of a PCB (printed circuit board). The method includes combining a plurality of unit boards into a board combination as needed; adding board edges to the board combination; and asymmetrically adding board edges on two opposite side surfaces of the board combination, in other words, adding a board edge with a specific dimension on one side of the board combination according to machining requirements and requirements of positioning resources, and adding a board edge smaller than board edge with the specific dimension on the other side of the board combination. Preferably, the board edges are asymmetrically added to the board combination in the length direction, and the minimum dimension of the board edges is 6mm. The method has the advantages that the board utilization rate can be effectively increased while the machining quality and the machining efficiency are guaranteed, and the cost is saved for an enterprise.

Description

Technical field [0001] The invention involves the field of PCB manufacturing technology. Background technique [0002] During the PCB production process, the main factors that affect costs are: 1. Calculation of board; 2. Drilling costs; 3. Process costs; 4. Management costs such as artificial hydropower.Among these factors, the cost of plate materials accounts for 60%-80%of the cost of production of PCB, so how to better use the board in production to increase the use of board's utilization to the highest point, determining the trend of PCB prices;The price also determines the order volume. It can be seen that the use of the use of board is the top priority in PCB production. [0003] Under normal circumstances, the design information provided by the customer is a single unit board or a continuous board, because the size is too small. In order to better produce, PCB manufacturers generally re -typeset the information provided by the customer, called working Panel., Design multip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/00
Inventor 王明阁王忱张惠来李加余
Owner VICTORY GIANT TECH HUIZHOU CO LTD
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