CN112920731A - UV (ultraviolet) anti-adhesion protective film and manufacturing method thereof - Google Patents
UV (ultraviolet) anti-adhesion protective film and manufacturing method thereof Download PDFInfo
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- CN112920731A CN112920731A CN202110107182.2A CN202110107182A CN112920731A CN 112920731 A CN112920731 A CN 112920731A CN 202110107182 A CN202110107182 A CN 202110107182A CN 112920731 A CN112920731 A CN 112920731A
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- antistatic
- visbreaking
- layer
- adhesive
- protective film
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/006—Presence of polyolefin in the substrate
Abstract
The invention discloses a UV (ultraviolet) anti-adhesion protective film, which comprises a substrate surface antistatic coating, a PO (polyethylene glycol) substrate layer, an antistatic UV anti-adhesion adhesive layer and a PET (polyethylene glycol) release layer, wherein the rear end of the substrate surface antistatic coating is 0.1-2 mu m, the PO substrate layer covers the upper surface of the substrate surface antistatic coating, the thickness of the PO substrate layer is 78-82 mu m, the antistatic UV anti-adhesion adhesive layer covers the upper surface of the PO substrate layer, the rear end of the antistatic UV anti-adhesion adhesive layer is 7-11 mu m, the PET release layer covers the upper surface of the antistatic UV anti-adhesion adhesive layer, and the rear end of the PET release layer is 36-40 mu m; the invention has 180 DEG peeling strength before UV illuminationThe peeling strength of 180 degrees after UV illumination is rapidly reduced to 0-3 gf/inch, the adhesive has UV illumination viscosity loss, no adhesive residue is left after being torn off from an adherend after UV illumination, and meanwhile, the adhesive system is softer and has very good ductility to crystal expansion of wafers and LEDs; the UV visbreaking film has an antistatic resistance value of 106～109Ω/m2The static electricity generated by cutting the workpiece can be effectively reduced or eliminated.
Description
Technical Field
The invention relates to the technical field of adhesive films, in particular to a UV (ultraviolet) anti-adhesion protective film and a manufacturing method thereof.
Background
When a tiny component such as a wafer is cut and ground, a package substrate, glass, a metal plate, and the like is processed, an adhesive tape is generally required to be used for fixing the tiny component, so that damage caused by movement of the component in a cutting process is avoided. In addition, when the local surface of a certain component needs to be polished in the etching, washing or coating process, in order to protect other parts which do not need to be processed from being affected, the parts which do not need to be processed are firstly covered by the adhesive tape, and then peeled off after the processing is finished. However, the adhesive tape used for fixing or shielding needs high adhesive strength, needs high viscosity during processing, and easily damages components when the adhesive tape is removed if the peeling force is too large during picking, and easily cannot be completely fixed if the adhesive force is too small.
In the process of cutting and polishing a wafer, in order to ensure that the wafer does not scatter and glue residues, a special protective film is needed to bond and fix the wafer, the peeling force of the protective film for fixing needs to be strictly controlled, the peeling force of the protective film is required to be large in order to fix the wafer before processing, and the peeling force is required to be as small as possible in order to avoid device damage caused by tearing the protective film after processing. Static electricity is generated due to friction during the process of cutting and polishing the wafer, when the static electricity is too large, the wafer is broken through, the wafer is damaged, the loss caused by the static electricity needs to be eliminated or reduced, and therefore the protective film or the adhesive tape needs to have an antistatic effect.
Disclosure of Invention
The present invention is directed to a UV anti-adhesive protective film and a method for manufacturing the same, so as to solve the problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an about UV visbreaking protection film, includes that substrate surface antistatic coating, PO substrate layer, antistatic UV visbreaking glue film and PET are from the type layer, the rear end of substrate surface antistatic coating is 0.1 ~ 2um, the PO substrate layer covers in substrate surface antistatic coating upper surface, PO substrate layer thickness is 78 ~ 82um, antistatic UV visbreaking glue film coats in PO substrate layer upper surface, antistatic UV visbreaking glue film's rear end is 7 ~ 11um, PET is from the type layer and covers in antistatic UV visbreaking glue film upper surface, PET is 36 ~ 40um from the rear end on type layer.
The antistatic UV viscosity-reducing adhesive layer consists of a UV viscosity-reducing adhesive product and an antistatic agent, and the antistatic UV viscosity-reducing adhesive layer comprises the following components in percentage:
the UV adhesive reducing bonding product accounts for 60-75%, and is acrylic resin obtained by reacting 35-40% of butyl acetate, 20-27% of butyl acrylate, 9-15% of methyl methacrylate, 6-10% of acrylic acid, 1-2% of hydroxypropyl acrylate and 0.03-0.09% of a first photoinitiator;
the proportion of the photosensitive multifunctional oligomer is 22-39%;
the proportion of the curing agent is 0.5-1%;
the proportion of the second photoinitiator is 0.2-0.9%;
the proportion of the antistatic agent is 0.4-2%.
The first photoinitiator is 184 type photoinitiator, and the second photoinitiator is a mixture of 184 type photoinitiator and TPO type initiator.
The antistatic agent is one or more of a high-molecular conductive polymer, ethoxylated aliphatic alkylamine, lithium sulfonate and metal ions, the total amount of the antistatic agent is 0.4-2%, and the resistance value of the antistatic agent reaches 106～109Ω/m2。
The number of functional groups in the photosensitive multifunctional oligomer is more than or equal to 3.
The peeling strength of the antistatic adhesive at 180 degrees before UV irradiation reaches 230-260 gf/inch, and the peeling strength at 180 degrees after UV irradiation is rapidly reduced to 0-3 gf/inch.
The non-gluing surface of the PO substrate is provided with an antistatic coating, the thickness of the coating is 0.1-2 um, and the antistatic resistance value of the coating is 106～109Ω/m2。
The PET release layer is a single-sided release type, which is an organic silicon release type, a non-silicon release type or a fluorine release type, and the release force is 10-20 gf/inch.
Substrate surface antistatic coating, PO substrate layer, antistatic UV subtracts the gross thickness that adhesive layer and PET left the type layer and laminate in proper order after be 128 ~ 132um, and two-sided antistatic.
The manufacturing environment of the UV anti-sticking protective film is a yellow environment, and the manufacturing method comprises the following steps:
step 1, weighing the butyl acetate, the butyl acrylate, the methyl methacrylate, the acrylic acid, the hydroxypropyl acrylate and the first photoinitiator in proportion;
step 5, weighing the antistatic agent in proportion, adding the antistatic agent into the mixture obtained in the step 4, and mixing and stirring the mixture uniformly again to obtain the antistatic UV viscosity-reducing adhesive;
and 6, coating the antistatic UV viscosity-reducing adhesive obtained in the step 5 on a PO (polyolefin) film coated with an antistatic coating on the back surface, and drying to obtain a dry adhesive of 9 +/-2 microns.
Compared with the prior art, the invention has the beneficial effects that: the peeling strength of 180 degrees before UV illumination reaches 230-260 gf/inch, the peeling strength of 180 degrees after UV illumination is quickly reduced to 0-3 gf/inch, the UV illumination adhesive loss property is realized, no adhesive residue is left after the UV illumination is carried out, and meanwhile, an adhesive system is softer and has very good ductility for crystal expansion of wafers and LEDs; the UV visbreaking film has an antistatic resistance value of 106～109Ω/m2The static electricity generated by cutting the workpiece can be effectively reduced or eliminated.
Drawings
Fig. 1 is a main sectional structural schematic diagram of the present invention.
In the figure: 1. the surface antistatic coating of substrate, 2, PO substrate layer, 3, antistatic UV visbreaking glue film, 4, PET release layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention provides a technical scheme of a UV anti-sticking protection film, which includes a substrate surface antistatic coating 1, a PO substrate layer 2, an antistatic UV anti-sticking glue layer 3 and a PET release layer 4, wherein the rear end of the substrate surface antistatic coating 1 is 0.1-2 um, the PO substrate layer 2 covers the upper surface of the substrate surface antistatic coating 1, the thickness of the PO substrate layer 2 is 78-82 um, the antistatic UV anti-sticking glue layer 3 is coated on the upper surface of the PO substrate layer 2, the rear end of the antistatic UV anti-sticking glue layer 3 is 7-11 um, the PET release layer 4 covers the upper surface of the antistatic UV anti-sticking glue layer 3, and the rear end of the PET release layer 4 is 36-40 um.
The antistatic UV visbreaking adhesive layer 3 consists of a UV visbreaking adhesive preparation and an antistatic agent, and comprises the following components in percentage:
the UV adhesive reducing bonding product accounts for 60-75%, and is acrylic resin obtained by reacting 35-40% of butyl acetate, 20-27% of butyl acrylate, 9-15% of methyl methacrylate, 6-10% of acrylic acid, 1-2% of hydroxypropyl acrylate and 0.03-0.09% of a first photoinitiator;
the proportion of the photosensitive multifunctional oligomer is 22-39%;
the proportion of the curing agent is 0.5-1%;
the proportion of the second photoinitiator is 0.2-0.9%;
the proportion of the antistatic agent is 0.4-2%.
The first photoinitiator is 184 type photoinitiator, and the second photoinitiator is a mixture of 184 type photoinitiator and TPO type initiator.
The antistatic agent is one or more of a high-molecular conductive polymer, ethoxylated aliphatic alkylamine, lithium sulfonate and metal ions, the total amount of the antistatic agent is 0.4-2%, and the resistance value of the antistatic agent reaches 106～109Ω/m2。
The number of functional groups in the photosensitive multifunctional oligomer is more than or equal to 3.
The peeling strength of the antistatic adhesive at 180 degrees before UV irradiation reaches 230-260 gf/inch, and the peeling strength at 180 degrees after UV irradiation is rapidly reduced to 0-3 gf/inch.
The non-gluing surface of the PO substrate is provided with an antistatic coating, the thickness of the coating is 0.1-2 um, and the antistatic resistance value of the coating is 106～109Ω/m2。
The PET release layer 4 is a single-sided release type which is an organic silicon release type, a non-silicon release type or a fluorine release type, and the release force is 10-20 gf/inch.
Substrate surface antistatic coating 1, PO substrate layer 2, antistatic UV subtracts the gross thickness of gluing layer 3 and PET after laminating in proper order from type layer 4 and is 128 ~ 132um, and two-sided antistatic.
The manufacturing environment of the UV anti-sticking protective film is a yellow environment, and the manufacturing method comprises the following steps:
step 1, weighing the butyl acetate, the butyl acrylate, the methyl methacrylate, the acrylic acid, the hydroxypropyl acrylate and the first photoinitiator in proportion;
step 5, weighing the antistatic agent in proportion, adding the antistatic agent into the mixture obtained in the step 4, and mixing and stirring the mixture uniformly again to obtain the antistatic UV viscosity-reducing adhesive;
and 6, coating the antistatic UV viscosity-reducing adhesive obtained in the step 5 on a PO (polyolefin) film coated with an antistatic coating on the back surface, and drying to obtain a dry adhesive of 9 +/-2 microns.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a about UV visbreaking protection film, includes substrate surface antistatic coating (1), PO substrate layer (2), antistatic UV visbreaking glue film (3) and PET release layer (4), its characterized in that: the rear end of substrate surface antistatic coating (1) is 0.1 ~ 2um, PO substrate layer (2) cover in substrate surface antistatic coating (1) upper surface, PO substrate layer (2) thickness is 78 ~ 82um, antistatic UV subtracts glue film (3) and coats in PO substrate layer (2) upper surface, the rear end of antistatic UV subtracts glue film (3) is 7 ~ 11um, PET covers in antistatic UV subtracts glue film (3) upper surface from type layer (4), the rear end from type layer (4) is 36 ~ 40 um.
2. A protective film against UV visbreaking as claimed in claim 1, wherein: the antistatic UV visbreaking adhesive layer (3) consists of a UV visbreaking adhesive preparation and an antistatic agent, and comprises the following components in percentage:
the UV adhesive reducing bonding product accounts for 60-75%, and is acrylic resin obtained by reacting 35-40% of butyl acetate, 20-27% of butyl acrylate, 9-15% of methyl methacrylate, 6-10% of acrylic acid, 1-2% of hydroxypropyl acrylate and 0.03-0.09% of a first photoinitiator;
the proportion of the photosensitive multifunctional oligomer is 22-39%;
the proportion of the curing agent is 0.5-1%;
the proportion of the second photoinitiator is 0.2-0.9%;
the proportion of the antistatic agent is 0.4-2%.
3. A protective film against UV visbreaking as claimed in claim 2, wherein: the first photoinitiator is 184 type photoinitiator, and the second photoinitiator is a mixture of 184 type photoinitiator and TPO type initiator.
4. A protective film against UV visbreaking as claimed in claim 2, wherein: the antistatic agent is one or more of a high-molecular conductive polymer, ethoxylated aliphatic alkylamine, lithium sulfonate and metal ions, the total amount of the antistatic agent is 0.4-2%, and the resistance value of the antistatic agent reaches 106～109Ω/m2。
5. A protective film against UV visbreaking as claimed in claim 2, wherein: the number of functional groups in the photosensitive multifunctional oligomer is more than or equal to 3.
6. A protective film against UV visbreaking as claimed in claim 1, wherein: the peeling strength of the antistatic adhesive at 180 degrees before UV irradiation reaches 230-260 gf/inch, and the peeling strength at 180 degrees after UV irradiation is rapidly reduced to 0-3 gf/inch.
7. A protective film against UV visbreaking as claimed in claim 1, wherein: the non-gluing surface of the PO substrate is provided with an antistatic coating, the thickness of the coating is 0.1-2 um, and the antistatic resistance value of the coating is 106～109Ω/m2。
8. A protective film against UV visbreaking as claimed in claim 1, wherein: the PET release layer (4) is a single-sided release type, and is an organic silicon release type, a non-silicon release type or a fluorine release type, and the release force is 10-20 gf/inch.
9. A protective film against UV visbreaking as claimed in claim 1, wherein: substrate surface antistatic coating (1), PO substrate layer (2), antistatic UV visbreaking glue film (3) and PET are 128 ~ 132um from the gross thickness after type layer (4) is laminated in proper order, and two-sided antistatic.
10. The UV anti-adhesive protective film according to claim 1, wherein: the manufacturing method comprises the following steps of:
step 1, weighing the butyl acetate, the butyl acrylate, the methyl methacrylate, the acrylic acid, the hydroxypropyl acrylate and the first photoinitiator in proportion;
step 2, adding the raw materials in the step 1 into a reaction kettle, mixing and stirring uniformly, irradiating by using a UV light source with the wavelength of 320nm and the power of 360mW to initiate reaction, wherein the reaction time is 15min, the reaction environment temperature is 110 ℃, and the reactant obtained after the reaction is acrylic resin;
step 3, weighing the acrylic resin, the photosensitive multifunctional oligomer, the curing agent and the second photoinitiator in proportion;
step 4, uniformly mixing and stirring the substances in the step 3 to obtain a UV viscose reducing agent;
step 5, weighing the antistatic agent in proportion, adding the antistatic agent into the mixture obtained in the step 4, and mixing and stirring the mixture uniformly again to obtain the antistatic UV viscosity-reducing adhesive;
and 6, coating the antistatic UV viscosity-reducing adhesive obtained in the step 5 on a PO (polyolefin) film coated with an antistatic coating on the back surface, and drying to obtain a dry adhesive of 9 +/-2 microns.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110107182.2A CN112920731A (en) | 2021-01-27 | 2021-01-27 | UV (ultraviolet) anti-adhesion protective film and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110107182.2A CN112920731A (en) | 2021-01-27 | 2021-01-27 | UV (ultraviolet) anti-adhesion protective film and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113770557A (en) * | 2021-10-22 | 2021-12-10 | 无锡韦感半导体有限公司 | Method for removing static electricity of laser cutting wafer |
| CN114133879A (en) * | 2021-12-20 | 2022-03-04 | 苏州赛伍应用技术股份有限公司 | Antistatic UV (ultraviolet) viscosity-reducing adhesive and preparation method thereof |
| CN115433912A (en) * | 2022-08-30 | 2022-12-06 | 歌尔微电子股份有限公司 | Magnetic control sputtering method of BGA product and BGA product |
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| CN111154428A (en) * | 2019-12-18 | 2020-05-15 | 苏州高泰电子技术股份有限公司 | Antistatic UV (ultraviolet) anti-sticking adhesive tape and preparation method thereof |
| CN111334225A (en) * | 2020-04-27 | 2020-06-26 | 广东硕成科技有限公司 | Antistatic semiconductor UV visbreaking adhesive layer and protective film |
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Patent Citations (4)
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| CN107022319A (en) * | 2017-04-01 | 2017-08-08 | 东莞市睿泰涂布科技有限公司 | The preparation technology of antistatic UV visbreakings composition, diaphragm and the diaphragm |
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Application publication date: 20210608 |