Antistatic semiconductor chip cutting protective film

An antistatic, semiconductor technology, applied in film/sheet release coatings, conductive coatings, conductive adhesives, etc., can solve the problems of slow release of plasticizers, unfavorable coating leveling, shrinkage and other problems, Achieve the effect of improving high temperature resistance and solvent resistance, stable peel strength, and not easy to shrink

Pending Publication Date: 2021-05-14
东莞市清鸿新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of soft PVC film is that it is prone to slow release of plasticizers, and it is not resistant to solvents and high temperatures. Existing PVC and other substrates are used with adhesives to make protective films that will shrink and roll when encountering solvents such as ethyl ester. Heat will shrink, which is not conducive to coating leveling. Therefore, an antistatic semiconductor chip cutting protective film is proposed.

Method used

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  • Antistatic semiconductor chip cutting protective film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Preparation of antistatic release agent:

[0019] Weigh 10 parts of the main agent methyl silicone oil, 0.02 parts of the platinum catalyst, 0.4 parts of the antistatic agent, and 100 parts of the diluent; put the platinum catalyst into the main agent methyl silicone oil, add an appropriate amount of diluent and stir evenly; add the antistatic agent Stir well with the remaining diluent; after the antistatic release agent is prepared, it is ready to be coated on the bright surface of the PVC blue film.

[0020] (2) Preparation of blue film protective primer:

[0021] Step 1: Weigh 30 parts of water-based polyurethane resin, 4 parts of co-solvent, and 10 parts of solvent;

[0022] Step: 2: mix the polyurethane resin and the co-solvent together, add an appropriate amount of solvent, and stir evenly;

[0023] Step 3: Weigh 1 part of curing agent, add an appropriate amount of solvent, mix and stir evenly;

[0024] Step 4: Add the solution in step 3 to the turbid solut...

Embodiment 2

[0051] (1) Preparation of antistatic release agent:

[0052] Weigh 40 parts of the main agent methyl silicone oil, 1 part of the platinum catalyst, 1 part of the antistatic agent, and 150 parts of the diluent; put the platinum catalyst into the main agent methyl silicone oil, add an appropriate amount of diluent and stir evenly; add the antistatic agent Stir well with the remaining diluent; after the antistatic release agent is prepared, it is ready to be coated on the bright surface of the PVC blue film.

[0053] (2) Preparation of blue film protective primer:

[0054] Step 1: Weigh 40 parts of water-based polyurethane resin, 7 parts of cosolvent, and 20 parts of solvent;

[0055] Step: 2: mix the polyurethane resin and the co-solvent together, add an appropriate amount of solvent, and stir evenly;

[0056] Step 3: Weigh 2 parts of curing agent, add an appropriate amount of solvent, mix and stir evenly;

[0057] Step 4: Add the solution in step 3 to the turbid solution in ...

Embodiment 3

[0084] (1) Preparation of antistatic release agent:

[0085] Weigh 60 parts of main agent methyl silicone oil, 2 parts of platinum catalyst, 2 parts of antistatic agent, and 200 parts of diluent; put the platinum catalyst into the main agent methyl silicone oil, add an appropriate amount of diluent and stir evenly; add antistatic agent Stir well with the remaining diluent; after the antistatic release agent is prepared, it is ready to be coated on the bright surface of the PVC blue film.

[0086] (2) Preparation of blue film protective primer:

[0087] Step 1: Weigh 50 parts of water-based polyurethane resin, 10 parts of co-solvent, and 30 parts of solvent;

[0088] Step: 2: mix the polyurethane resin and the co-solvent together, add an appropriate amount of solvent, and stir evenly;

[0089] Step 3: Weigh 3 parts of curing agent, add an appropriate amount of solvent, mix and stir evenly;

[0090] Step 4: Add the solution in step 3 to the turbid solution in step 2, mix and ...

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Abstract

The invention discloses the technical field of chip cutting protection films, and particularly relates to an antistatic semiconductor chip cutting protection film. The protection film comprises an antistatic release coating, a PVC blue film, a blue film protection base coating and an antistatic acrylic adhesive layer, and has the advantages of good flexibility, high temperature resistance, easiness in wafer expansion and wafer cutting, and capability of eliminating static electricity generated by friction in wafer expansion and cutting; the arrangement of the blue film protection prime coat can prevent a plasticizer in the PVC blue film from being separated out and permeating into the adhesive layer to a certain extent, the high temperature resistance and solvent resistance of the PVC blue film are improved, the PVC blue film is not prone to shrinkage, and the antistatic acrylic adhesive layer is stable in peel strength, resistant to high temperature of 180 DEG C and antistatic. And the PVC blue film can be used for striking and effectively identifying the protective film, so the use is convenient. The total thickness of the protective film is 80 +/-2 [mu]m, the peel strength is 100 +/-20 gf/inch, no adhesive is left, the antistatic resistance value is 106-109 omega, and the release force is 20 gf/inch.

Description

technical field [0001] The invention relates to the technical field of chip cutting protective film, in particular to an antistatic semiconductor chip cutting protective film. Background technique [0002] With the development of the chip industry, there are processes such as wafer expansion and cutting in the chip manufacturing process. In this process, an eye-catching and effective identification is required, and it has good flexibility, no silicon transfer, and can protect the wafer from physical damage. protective film. Most of the protective films on the market are made of PVC and other substrates with adhesives. [0003] The main component of PVC is polyvinyl chloride. According to the amount of additives, it can be divided into soft and hard polyvinyl chloride. Soft products are soft and tough, and feel sticky. The hardness of hard products is higher than that of low-density polyethylene and lower than that of polypropylene. The disadvantage of soft PVC film is that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/24C09J7/30C09J7/50C09J133/04C09J9/02C09D175/04C09D5/24C09D183/04C08J7/044C08L27/06
CPCC08J2327/06C08J2483/04C09D5/24C09D175/04C09D183/04C09J9/02C09J133/04C09J2427/006C09J2433/00C09J2475/003C09J7/245C09J7/30C09J7/50C08J7/0427C08J7/044
Inventor 陆扬景海全
Owner 东莞市清鸿新材料科技有限公司
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