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A data processing method for the stretching coefficient of printed board drill tape

A tensile coefficient and data processing technology, which is applied in the field of data processing of tensile coefficient of printed board drilling tape, can solve the problems of high cost, waste of cost, troublesome control of drilling accuracy, etc., and achieve the effect of saving cost

Active Publication Date: 2015-08-12
上海嘉捷通信息科技有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Because the plate will have the effect of expansion and contraction after baking and pressing, it will bring a lot of trouble to the control of drilling accuracy
At present, the industry determines the tensile coefficient of the drill tape, generally by testing the expansion and contraction coefficient of the film to determine the tensile coefficient of the drill tape, or first take a first board to drill holes at a ratio of 1:1, and then start drilling after confirming the stretch coefficient Holes, neither of these two methods can directly obtain the actual stretch coefficient, which will cause a waste of cost, especially for some high-rise boards and special material boards, the cost is higher

Method used

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  • A data processing method for the stretching coefficient of printed board drill tape

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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 As shown, the printed board of the present invention includes a unit board 1 and a test strip 2 , and the test strip 2 is located on both sides of the unit board 1 . During engineering production, we add some test holes 3 at the reasonable positions of the four corners outside the production data and add welding rings on the inner and outer layers. During production, we confirm the tensile coefficient of the drill tape by drilling test holes; the whole process can be divided into Three steps to achieve.

[0016] A data processing method for the stretching coefficient of a printed board drill tape, the specific method steps are:

[0017] Step 101. On the four corners of the test strip 2, drill one-third of the total number of drilled holes with a ratio of 1:1, and compare the deviation of the hole position, so as to p...

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Abstract

The invention relates to a printed board drilling band drawing coefficient data processing method. The printed board comprises a unit plate and a test strip. The data processing method comprises the following steps: 1) On four corners of the test strip, drilling drill holes whose number is one third of a total number of the drill holes as a proportion of 1:1, comparing a hole position deviation so as to calculate a preliminary drilling band drawing coefficient and then executing a step 2; 2) Drilling the drill holes whose number is one third of the total number of the drill holes according to the preliminary drilling band drawing coefficient, comparing the hole position deviation and determining whether the drilling band drawing coefficient accords with a requirement; if the drilling band drawing coefficient accords with the requirement, obtaining the drilling band drawing coefficient; if the drilling band drawing coefficient does not accord with the requirement, executing a step 3; 3) Continuously drilling the residual one third of the drill holes according to the drilling band drawing coefficient of the step 2, comparing the hole position deviation and returning to the step 2. Compared to the prior art, by using the method of the invention, there are the following advantages that cost is saved; the method is visual; a result is accurate and so on.

Description

technical field [0001] The invention relates to a technology related to the stretching coefficient of a drill tape of a printed board, in particular to a data processing method for the stretch coefficient of a drill tape of a printed board. Background technique [0002] Because the plate will have the effect of expansion and contraction after baking and pressing, it will bring a lot of trouble to the control of drilling accuracy. At present, the industry determines the tensile coefficient of the drill tape, generally by testing the expansion and contraction coefficient of the film to determine the tensile coefficient of the drill tape, or first take a first board to drill holes at a ratio of 1:1, and then start drilling after confirming the stretch coefficient Holes, neither of these two methods can directly obtain the actual stretch coefficient, which will cause a waste of cost, especially for some high-rise boards and special material boards, the cost is higher. Contents...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/00
Inventor 陆江
Owner 上海嘉捷通信息科技有限公司
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