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Light-sensitive coating resin of auxiliary sheet for drilling and application thereof

A guidance sheet, resin layer technology, applied in photosensitive materials for optomechanical equipment, synthetic resin layered products, chemical instruments and methods, etc. Pollution and other problems, to achieve the effect of reducing the complexity of the process, improving the thickness uniformity, and reducing the polymerization time

Pending Publication Date: 2016-01-13
GTA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above method requires a high-temperature baking process to cure the copolymer after coating the lubricating copolymer. In addition to prolonging the process time, the baked resin layer has uneven molecular weight and different solvent volatilization rates. The relationship between coating functionality and thickness may be uneven, which will be unfavorable for subsequent drilling applications. Among them, the doubt of uneven molecular weight may lead to residual drill needles, degumming of the coating layer, and holes in the drilled holes. concerns about contamination

Method used

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  • Light-sensitive coating resin of auxiliary sheet for drilling and application thereof
  • Light-sensitive coating resin of auxiliary sheet for drilling and application thereof
  • Light-sensitive coating resin of auxiliary sheet for drilling and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Take 1 mole of polyetheramine (Huntsman D-4000), add 1 mole of 1,2,4,5-pyromellitic dianhydride and react at 20°C for 12 hours to obtain the first polymer of formula (I), its reaction formula is as follows:

[0039]

[0040] Wherein, n is an integer ranging from 2 to 100, and m is an integer ranging from 1 to 1000.

[0041] Take another 1 mole of polyetheramine (Huntsman D-4000) and 2 moles of vinyl chloride were reacted at 20° C. for 12 hours to obtain the second polymer of formula (II), and its reaction formula was as follows:

[0042]

[0043] Wherein, o is an integer ranging from 2 to 100.

[0044] Take 1 part of the first polymer of formula (I) and 1 part of the second polymer of formula (II), based on the second polymer, further add 3% photosensitive initiator (1173) and 1% After the photosensitizer (ITX) is fully mixed, the resin composition of the present invention is obtained, and the resin composition is directly coated on a 100 micron aluminum foil (...

Embodiment 2

[0047] Polymerize the first polymer of formula (I) and the second polymer of formula (II) according to the method of Example 1 and adopt the same coating and drilling conditions, and the composition contains formula (I) and formula (II) ) polymer, wherein the ratio of the polymer of formula (I) and formula (II) is 1:2, using the photoreaction conditions of Example 1 to make a drilling guide sheet, the drilling results are as shown in Table 1 Show.

Embodiment 3

[0049] The polymers of formula (I) and formula (II) are polymerized in the manner of Example 1 and carried out using the same coating and drilling conditions. The composition contains polymers of formula (I) and formula (II), wherein the formula The ratio of (I) to the polymer of formula (II) is 2:1, and the drilling guide sheet is made using the same photoreaction conditions as in Example 1, and the drilling results are shown in Table 1.

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Abstract

The invention provides application of a light-sensitive resin composition and an auxiliary sheet for drilling. The auxiliary sheet is obtained by coating an aluminum foil sheet with the light-sensitive resin composition and combining the resin on the aluminum foil sheet through light curing. The resin composition comprises a first polymer formed by reacting 1,2,4,5-pyromellitic dianhydride with polyether amine and a second polymer formed by reacting polyether amine with chloroethylene, wherein the second polymer is a light-sensitive polymer. The novel resin composition provided by the invention can be arranged on the auxiliary sheet for drilling. When the auxiliary sheet for drilling of the resin composition is applied to a drilling process, the coating resin can be prevented from splitting due to friction heat under high rotation speed drilling, so that the drilling stability, accuracy and precision are further promoted.

Description

technical field [0001] The invention relates to a resin composition, in particular to a coating resin composition applied to a guide sheet used in a drilling process. Background technique [0002] The circuit board is the provider of electrical connections in electronic components. Its development has been about a hundred years old. The production of the circuit board is based on an insulating substrate, cut into a certain size, and at least one conductive pattern is attached to it and holes are arranged ( Such as component holes, fastening holes or metallized holes, etc.), can be used to realize the interconnection between electronic components, etc. When making multi-layer circuit boards, the usual method is to overlap the copper-plated laminates, place a cover plate on the stack, and then drill holes from above to form small holes, and then through electroplating The process makes hole-to-hole conduction, so the choice of cover plate material can usually prevent hole dam...

Claims

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Application Information

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IPC IPC(8): G03F7/004B32B15/088B32B15/20B32B27/06
Inventor 蔡永基
Owner GTA ELECTRONICS
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