WO2013129079A1 - 粘着テープ用フィルムおよび粘着テープ - Google Patents

粘着テープ用フィルムおよび粘着テープ Download PDF

Info

Publication number
WO2013129079A1
WO2013129079A1 PCT/JP2013/053003 JP2013053003W WO2013129079A1 WO 2013129079 A1 WO2013129079 A1 WO 2013129079A1 JP 2013053003 W JP2013053003 W JP 2013053003W WO 2013129079 A1 WO2013129079 A1 WO 2013129079A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
meth
adhesive layer
adhesive tape
adhesive
Prior art date
Application number
PCT/JP2013/053003
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
拓三 由藤
俊隆 鈴木
白井　稚人
安藤　雅彦
裕香 関口
量子 浅井
明日香 遠藤
梨恵 林内
Original Assignee
日東電工株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日東電工株式会社 filed Critical 日東電工株式会社
Priority to CN201380011463.1A priority Critical patent/CN104136217B/zh
Publication of WO2013129079A1 publication Critical patent/WO2013129079A1/ja

Links

Images

Classifications

    • 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
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/08—Homopolymers or copolymers of acrylic acid esters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/283—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polysiloxanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of 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
    • 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
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/10—Homopolymers or copolymers of methacrylic acid esters
    • C09J133/12—Homopolymers or copolymers of methyl methacrylate
    • 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
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
    • H01L21/6835—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
    • H01L21/6836—Wafer tapes, e.g. grinding or dicing support tapes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2405/00—Adhesive articles, e.g. adhesive tapes
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
    • 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
    • C09J2427/00—Presence of halogenated polymer
    • C09J2427/006—Presence of halogenated polymer in the substrate
    • 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
    • C09J2433/00—Presence of (meth)acrylic polymer
    • 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
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C09J2433/005—Presence of (meth)acrylic polymer in the release coating
    • 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
    • C09J2483/00—Presence of polysiloxane
    • C09J2483/005—Presence of polysiloxane in the release coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
    • H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
    • H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
    • H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
    • H01L2221/68327—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used during dicing or grinding

Definitions

  • the present invention relates to an adhesive tape film and an adhesive tape.
  • the adhesive tape used for semiconductor dicing needs to fix the surface opposite to the wafer contact surface to the pedestal in order to fix the wafer during dicing.
  • fixation is performed by a negative pressure such as vacuum suction.
  • the adhesive tape When fixing with such negative pressure, the adhesive tape may be in close contact with the pedestal due to excessive negative pressure or melting of the adhesive tape due to heat generated during dicing. When such over-adhesion occurs, the handling property when releasing the fixing to the pedestal is deteriorated, and for example, there is a problem that the semiconductor manufacturing process including dicing does not flow smoothly.
  • the center line surface roughness Ra of the surface opposite to the pressure-sensitive adhesive layer of the base film is set to A technique for controlling to a predetermined size has been reported (Patent Document 1).
  • the base film of the adhesive tape used for semiconductor dicing is required to have an expanding (stretching) characteristic and a step following characteristic peculiar to the semiconductor manufacturing process. That is, the base film of the pressure-sensitive adhesive tape used for semiconductor dicing needs to be able to be satisfactorily stretched in the expanding process, and needs to follow the steps of the semiconductor well.
  • a base film made of a material having a high elongation rate is selected as the base film that can meet such requirements.
  • the surface condition of such a base film is easily affected by temperature. For this reason, even if the centerline surface roughness Ra of the surface of the base film is controlled to a predetermined size as reported in Patent Document 1, it becomes a predetermined size depending on the temperature and the temperature change of the process equipment. There is a problem that the controlled centerline surface roughness Ra is greatly changed, and the effect of the invention described in Patent Document 1 cannot be exhibited.
  • the wafer At the time of dicing, especially at the time of laser dicing, the wafer generates heat due to energy by laser processing.
  • the wafer generates heat as described above, even if the center line surface roughness Ra of the surface of the base film is controlled to a predetermined size as reported in Patent Document 1, the above problem of over-adhesion is caused. There is a problem that over-adhesion is promoted rather than being able to be solved.
  • the semiconductor wafer used is made of a very fragile material such as gallium nitride, gallium arsenide, silicon carbide, etc., so as to prevent damage to the semiconductor wafer.
  • the base film of the pressure-sensitive adhesive tape is required to have a single expanded (stretching) characteristic and a step following characteristic. For this reason, in the adhesive tape used for LED dicing, the said problem becomes still more remarkable.
  • the film surface is smooth, and when such a film is processed into a roll shape, a phenomenon in which the films come into contact with each other, that is, blocking occurs. A roll that has been blocked may cause problems such as difficulty in rewinding the film.
  • a plasticizer is generally added to a film having a high elongation rate. In such a film, the plasticizer is deposited on the film surface to fill a slight gap between the films, so that the adverse effect due to blocking becomes significant.
  • the pressure-sensitive adhesive itself has adhesiveness, so that the adverse effect of blocking becomes even greater.
  • the wafer used for the LED is made of a very fragile material such as gallium nitride, gallium arsenide, or silicon carbide. For this reason, the blocking prevention in the adhesive tape used for LED dicing etc. becomes especially important.
  • Patent Document 2 One conventional technique is to perform physical processing such as embossing on the back of the film (Patent Document 2).
  • Patent Document 2 Since the unevenness formed on the back surface of the film has a stress concentration structure, when the film is rewound from the roll shape, the film is torn or torn starting from the unevenness due to the unwinding force. There is a problem.
  • Patent Document 3 Another conventional technique is to apply a silicone release agent to the back of the film (Patent Document 3).
  • the silicone release agent has a low chemical affinity with the back surface of the film due to its surface tension, and it is difficult to be familiar with the back surface of the film.
  • the adhesive tape is stretched such as an expand, the treatment layer with the silicone release agent may not be able to follow the elongation. The problem of being crushed and causing contamination can arise.
  • An object of the present invention is a film for an adhesive tape in which a non-adhesive layer is provided on a base film, and when performing dicing or the like by adsorbing and fixing to a fixing base by negative pressure, due to heat generation of the base or the like It is possible to effectively suppress the occurrence of over-adhesion, and blocking in the roll form is effectively suppressed by providing a non-adhesive layer on the base film, and tearing when rewinding from the roll form
  • An object of the present invention is to provide a film for pressure-sensitive adhesive tapes that is not torn, has a good familiarity with the non-adhesive layer and the base film, and has good followability to deformation such as stretching. Moreover, it is providing the adhesive tape containing such a film for adhesive tapes.
  • the adhesive tape film of the present invention is A film for an adhesive tape comprising a non-adhesive layer on one side of a plastic film,
  • the surface of the non-adhesive layer has an uneven structure,
  • the indentation hardness at 80 ° C. by the nanoindenter at the convex portion on the surface of the non-adhesive layer is 6.0 MPa or more.
  • the arithmetic average surface roughness Ra of the non-adhesive layer is 0.1 ⁇ m or more.
  • the non-adhesive layer is a mixed layer of silicone and (meth) acrylic polymer.
  • the calculated Tg of the (meth) acrylic polymer is 10 ° C. or higher.
  • the SP value of the (meth) acrylic polymer is 9.0 (cal / cm 3 ) 0.5 to 12.0 (cal / cm 3 ) 0.5 .
  • the non-adhesive layer has a phase separation structure.
  • the non-adhesive test peel force of the non-adhesive layer is less than 1.0 N / 20 mm.
  • the non-adhesive layer has a thickness of 0.01 ⁇ m to 10 ⁇ m.
  • the maximum elongation of the plastic film measured according to JIS-K-7127 is 100% or more.
  • the plastic film has a thickness of 20 ⁇ m to 200 ⁇ m.
  • the plastic film contains polyvinyl chloride.
  • an adhesive tape is provided.
  • the pressure-sensitive adhesive tape of the present invention includes a pressure-sensitive adhesive layer on the surface of the plastic film of the present invention opposite to the non-stick layer of the plastic film.
  • the pressure-sensitive adhesive layer contains at least one (meth) acrylic polymer.
  • the SP value of the pressure-sensitive adhesive layer is 9.0 (cal / cm 3 ) 0.5 to 12.0 (cal / cm 3 ) 0.5 .
  • a release liner is provided on the surface of the pressure-sensitive adhesive layer.
  • the adhesive tape of the present invention is used for semiconductor processing.
  • the adhesive tape of the present invention is used for LED dicing.
  • a non-adhesive layer is a film for an adhesive tape provided on a base film, and when performing dicing or the like by adsorbing and fixing to a fixing base by negative pressure, due to heat generation of the base or the like It is possible to effectively suppress the occurrence of over-adhesion, and blocking in the roll form is effectively suppressed by providing a non-adhesive layer on the base film, and tearing when rewinding from the roll form It is possible to provide a film for an adhesive tape that is not torn, has a good familiarity with the non-adhesive layer and the substrate film, and has good followability to deformation such as stretching. Moreover, the adhesive tape containing such a film for adhesive tapes can be provided.
  • the film for pressure-sensitive adhesive tapes of the present invention includes a non-adhesive layer on one surface of a plastic film.
  • the plastic film is not particularly limited, and may include any appropriate resin material.
  • a resin material preferably, for example, polyvinyl chloride, polyolefin, polyester, polyimide, polyamide and the like are mentioned, more preferably, polyvinyl chloride and polyolefin are mentioned, and still more preferably, polyvinyl chloride is used.
  • polyvinyl chloride is excellent in stress relaxation properties, it can be suitably used particularly for an adhesive tape film that can be used for an adhesive tape used for semiconductor processing such as LED dicing.
  • any appropriate content ratio can be set according to the purpose and application.
  • Such a content ratio is, for example, preferably 50% by weight to 100% by weight, more preferably 60% by weight to 100% by weight, and further preferably 70% by weight to 100% by weight.
  • the plastic film may contain a plasticizer.
  • the content of the plasticizer in the plastic film is preferably 0.5% by weight to 50% by weight, more preferably 1.0% by weight to 40% by weight with respect to the resin material in the plastic film. is there.
  • plasticizer examples include phthalate esters, trimellitic acid esters (Dainippon Ink Co., Ltd., W-700, trimellitic acid trioctyl, etc.), adipate esters (manufactured by J-Plus, D620, dioctyl adipate, diisononyl adipate, etc.), phosphate esters (such as tricresyl phosphate), adipates, citrate (such as tributyl acetylcitrate), sebacic acid esters, acerate esters, maleate esters Benzoic acid ester, polyether polyester, epoxy polyester (epoxidized soybean oil, epoxidized linseed oil, etc.), polyester (low molecular polyester comprising carboxylic acid and glycol, etc.) and the like. In the present invention, it is preferable to use an ester plasticizer. Only one type of plasticizer may be used, or two or more types may be used.
  • the plastic film may contain any appropriate other component as long as the effects of the present invention are not impaired.
  • the maximum elongation of the plastic film measured according to JIS-K-7127 is preferably 100% or more, more preferably 200% to 1000%.
  • a plastic film exhibiting such maximum elongation it is possible to impart appropriate stretchability to the adhesive tape film of the present invention.
  • the adhesive tape film of the present invention is used for an adhesive tape
  • the followability to the adherend can be improved.
  • the thickness of the plastic film is preferably 20 ⁇ m to 200 ⁇ m, more preferably 40 ⁇ m to 150 ⁇ m, and still more preferably 50 ⁇ m to 100 ⁇ m.
  • the thickness of the plastic film is less than 20 ⁇ m, the handleability may be deteriorated. In particular, when the pressure-sensitive adhesive tape is formed, the bonding operation may be difficult. If the thickness of the plastic film is larger than 200 ⁇ m, the followability to deformation such as stretching may be deteriorated.
  • Non-adhesive layer is not particularly limited in composition as long as the surface has an uneven structure defined below, and an example thereof is a mixed layer of silicone and (meth) acrylic polymer. is there.
  • a mixed layer of silicone and (meth) acrylic polymer By making the non-adhesive layer a mixed layer of silicone and (meth) acrylic polymer, the familiarity between the non-adhesive layer and the plastic film is improved, and the film for the adhesive tape of the present invention and the adhesive tape including the same are stretched, etc. The followability with respect to the deformation is good.
  • the surface of the non-adhesive layer has an uneven structure.
  • the arithmetic average surface roughness Ra of the non-adhesive layer is preferably 0.1 ⁇ m or more, more preferably 0.1 ⁇ m to 3.0 ⁇ m, and still more preferably 0.2 ⁇ m. ⁇ 2.0 ⁇ m, particularly preferably 0.3 ⁇ m to 2.0 ⁇ m, and most preferably 0.5 ⁇ m to 2.0 ⁇ m.
  • the arithmetic average surface roughness Ra of the non-adhesive layer falls within the above range, it is possible to suppress the occurrence of over-adhesion when performing adsorption fixation by negative pressure.
  • the non-adhesive layer has an indentation hardness at 80 ° C. by a nanoindenter on the convex portion of the surface of 6.0 MPa or more, preferably 10 MPa or more, more preferably 15 MPa or more, and further preferably 18 MPa or more. It is.
  • the upper limit of the indentation hardness at 80 ° C. by the nanoindenter in the convex part of the surface of the non-adhesive layer is not particularly limited, but is preferably 100 MPa or less, more preferably 70 MPa or less, and further preferably 50 MPa or less. Yes, particularly preferably 40 MPa or less. If the indentation hardness at 80 ° C.
  • the nanoindenter in the convex part of the surface of the non-adhesive layer falls within the above range, the hardness of the convex part in the surface of the non-adhesive layer, particularly at high temperatures.
  • the dicing or the like is performed by adhering and fixing the adhesive tape film of the present invention to the fixing base by negative pressure, excessive adhesion due to heat generation of the base may occur. Can be effectively suppressed.
  • the measuring method of the indentation hardness at 80 degreeC by the nanoindenter in the convex part of the surface of a non-adhesion layer is mentioned later.
  • the non-adhesive layer is a mixed layer of silicone and (meth) acrylic polymer
  • the (meth) acrylic polymer in the non-adhesive layer has a calculated Tg of 10 ° C or higher, preferably 20 ° C or higher, More preferably, it is 30 degreeC or more, More preferably, it is 45 degreeC or more.
  • the upper limit of the calculated Tg of the (meth) acrylic polymer in the non-adhesive layer is not particularly limited, but is preferably 200 ° C. or lower, more preferably 150 ° C. or lower, and further preferably 100 ° C. or lower.
  • the calculated Tg of the (meth) acrylic polymer in the non-adhesive layer is within the above range, the heat resistance in the fine uneven structure on the surface of the non-adhesive layer is increased, and the pressure-sensitive adhesive film of the present invention is negative pressure. Accordingly, when dicing or the like is performed by adsorbing and fixing to the fixing base, it is possible to effectively suppress the occurrence of over-adhesion due to heat generation of the base.
  • the “calculated Tg” of a copolymer is a formula for calculating Fox with respect to Tg of a structural unit derived from a monomer constituting the copolymer.
  • the Fox equation means the glass transition temperature Tg (° C.) of a copolymer as shown below, and the glass transition temperature Tg i (° C.) of a homopolymer obtained by homopolymerizing each of the monomers constituting the copolymer. ).
  • Tg (° C.) is the glass transition temperature of the copolymer
  • W i is the weight fraction of monomer i
  • glass transition temperature Tg i (° C.) of the homopolymer
  • the value described in “Polymer Handbook 3rd Edition” (A WILEY-INTERSCIENCE PUBLICATION, 1989) can be used.
  • the SP value of the (meth) acrylic polymer in the non-adhesive layer is preferably 9.0 (cal / cm 3 ) 0.5 to 12.0. (Cal / cm 3 ) 0.5 , more preferably 9.5 (cal / cm 3 ) 0.5 to 11.5 (cal / cm 3 ) 0.5 , and even more preferably 9.5 ( cal / cm 3 ) 0.5 to 11.0 (cal / cm 3 ) 0.5 .
  • the SP value is a solubility parameter calculated by the Small formula.
  • the SP value can be calculated by a method described in a known document (for example, Journal of Applied Chemistry, 3, 71, 1953., etc.).
  • the non-adhesive layer preferably has a phase separation structure.
  • a fine uneven structure can be efficiently formed on the surface of the non-adhesive layer. This is probably because, for example, when the non-adhesive layer is a mixed layer of silicone and (meth) acrylic polymer, the mass transfer of silicone and (meth) acrylic polymer during phase separation structure formation It is estimated that unevenness is generated due to the difference.
  • this concavo-convex structure in the film for the pressure-sensitive adhesive tape of the present invention, it is possible to suppress over-adhesion when performing suction fixation by negative pressure, and it is possible to effectively suppress blocking in a roll form, It is possible to suppress tearing or tearing when rewinding from the shape.
  • the non-adhesive layer preferably contains a silicone-rich phase containing more silicone than the (meth) acrylic polymer and a (meth) acrylic polymer-rich phase containing more (meth) acrylic polymer than the silicone. More specifically, the non-adhesive layer preferably includes a phase-separated structure in which the silicone-rich phase and the (meth) acrylic polymer-rich phase are independent from each other, and more preferably, the silicone-rich phase is an air interface. It exists on the side (opposite side of the plastic film), and the (meth) acrylic polymer rich phase is present on the plastic film side.
  • phase separation structure By having such a phase separation structure, blocking is effectively suppressed by the silicone-rich phase present on the air interface side, and the non-adhesive layer and the plastic film are represented by the (meth) acrylic polymer-rich phase present on the plastic film side.
  • the familiarity with and the deformation followability become good.
  • phase separation structure can be formed by adjusting the mixing ratio of the silicone and the (meth) acrylic polymer in the non-adhesive layer as follows.
  • the non-adhesive layer has a phase-separated structure, and as described above, a silicone-rich phase containing more silicone than (meth) acrylic polymer and a more (meth) acrylic polymer than silicone (meta)
  • a silicone-rich phase containing more silicone than (meth) acrylic polymer and a more (meth) acrylic polymer than silicone (meta)
  • the inclusion of an acrylic polymer rich phase can be observed by any suitable method.
  • an observation method for example, the cross-section of the non-adhesive layer is measured using an electron microscope such as a transmission electron microscope (TEM), a scanning electron microscope (SEM), or a field emission scanning electron microscope (FE-SEM).
  • TEM transmission electron microscope
  • SEM scanning electron microscope
  • FE-SEM field emission scanning electron microscope
  • Observation is also made by observing changes in the content of silicon and carbon contained in the composition while changing the probe light depth from the non-adhesive layer air interface side to the inside by infrared absorption spectroscopy using the total reflection method. A method is also mentioned. In addition, a method of observing with an X-ray microanalyzer or X-ray photoelectron spectroscopy is also included. Moreover, you may observe combining these methods suitably.
  • the non-adhesive layer has a phase separation structure of the silicone-rich phase present on the air interface side (opposite side of the plastic film) and the (meth) acrylic polymer-rich phase present on the plastic film side
  • the non-adhesive layer is
  • the fixing pedestal generates heat when it is adsorbed and fixed to the fixing pedestal by dicing or the like
  • the surface structure of the phase separation structure is destroyed by the heat load caused by the heat generation, and particularly, the heated pedestal is in contact with the heated pedestal. It is possible that the surface structure of the phase separation structure in the convex portion is destroyed and the (meth) acrylic polymer rich phase is exposed on the air interface side in the convex portion.
  • the film for the adhesive tape of the present invention has a convex portion subjected to a thermal load. Hardness is moderately high, and thus heat resistance is high. For this reason, when adhering and fixing the film for adhesive tapes of this invention to a fixing base by negative pressure and performing dicing etc., it can suppress effectively that the excessive adhesion
  • the content ratio of silicone in the non-adhesive layer is too large, the chemical affinity with the back surface of the plastic film is lowered, and there is a possibility that it is difficult to be familiar with the back surface of the plastic film.
  • the silicone content in the non-adhesive layer is too large, when the film for an adhesive tape or an adhesive tape containing the same is used, followability to deformation such as stretching becomes worse, and the non-adhesive layer is crushed and contaminated. May cause this.
  • the content ratio of the (meth) acrylic polymer in the non-adhesive layer is too large, the non-adhesive layer may act as an acrylic adhesive, and blocking may easily occur.
  • any appropriate silicone can be adopted as the silicone.
  • silicones for example, addition type silicones obtained by forming a peelable film by curing an alkenyl group-containing polydialkylsiloxane and polydialkylhydrogenpolysiloxane by an addition reaction using a platinum compound as a catalyst, a tin-based silicone Examples include a condensation type silicone obtained by reacting a methylol group-containing polydialkylsiloxane and a polydialkylhydrogenpolysiloxane using a catalyst. Examples of the addition type silicone include “KS-776A” and “KS-839L” manufactured by Shin-Etsu Silicone.
  • condensation type silicone examples include, for example, “KS723A / B” manufactured by Shin-Etsu Silicone.
  • silicone when manufacturing silicone, you may use other crosslinking agents, a crosslinking accelerator, etc. suitably other than a platinum-type catalyst and a tin-type catalyst.
  • the properties of silicone are classified into a type dissolved in an organic solvent such as toluene, an emulsion type obtained by emulsifying these, and a solventless type consisting only of silicone.
  • silicone / acrylic graft polymer, silicone / acrylic block polymer, and the like can be used.
  • silicone / acrylic graft polymer examples include Cymac GS-30, GS101, US-270, US-350, US-380 (above, manufactured by Toagosei Co., Ltd.).
  • silicone / acrylic block polymer examples include Modiper FS700, FS710, FS720, FS730, and FS770 (manufactured by NOF Corporation).
  • (meth) acrylic polymer Any appropriate (meth) acrylic polymer may be adopted as the (meth) acrylic polymer.
  • (meth) acryl means “acryl and / or methacryl”.
  • (Meth) acrylic polymer is a polymer composed of monomer components containing a (meth) acrylic monomer as a main monomer.
  • the content of the (meth) acrylic monomer in the monomer component constituting the (meth) acrylic polymer is preferably 50% by weight or more, more preferably 70% by weight to 100% by weight, and still more preferably 90% by weight to 100%. % By weight, particularly preferably from 95% to 100% by weight.
  • the monomer in the monomer component may be only one type or two or more types.
  • the (meth) acrylic monomer is preferably (meth) acrylic acid ester or (meth) acrylic acid.
  • (meth) acrylic acid esters examples include (meth) acrylic acid alkyl esters having 1 to 30 carbon atoms (including cycloalkyl groups), hydroxyl group-containing (meth) acrylic acid esters, and the like. Only one (meth) acrylic acid ester may be used, or two or more may be used.
  • Examples of (meth) acrylic acid alkyl esters of alkyl groups having 1 to 30 carbon atoms include, for example, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, Isopropyl (meth) acrylate, butyl (meth) acrylate, isobutyl (meth) acrylate, sec-butyl (meth) acrylate, t-butyl (meth) acrylate, pentyl (meth) acrylate, (meth) acrylic Amyl acid, hexyl (meth) acrylate, cyclohexyl (meth) acrylate, heptyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, octyl (meth) acrylate, isooctyl (meth) acrylate, (meth) Nonyl
  • (meth) acrylic acid esters preferred are (meth) acrylic acid alkyl esters of alkyl groups having 2 to 20 carbon atoms (including cycloalkyl groups), and more preferred are those having 4 to 18 carbon atoms. (Meth) acrylic acid alkyl ester of an alkyl group (including a cycloalkyl group).
  • hydroxyl group-containing (meth) acrylic acid ester examples include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate and the like.
  • the monomer component constituting the (meth) acrylic polymer may contain at least one selected from a hydroxyl group-containing monomer and a carboxyl group-containing monomer in order to sufficiently exhibit the effects of the present invention.
  • hydroxyl group-containing monomer examples include allyl alcohol. Only one type of hydroxyl group-containing monomer may be used, or two or more types may be used.
  • carboxyl group-containing monomer examples include carboxyethyl (meth) acrylate, carboxypentyl (meth) acrylate, crotonic acid, maleic acid, fumaric acid, and itaconic acid. Only one type of carboxyl group-containing monomer may be used, or two or more types may be used.
  • the (meth) acrylic polymer in the non-adhesive layer is preferably such that the content ratio of the hydroxyl group-containing (meth) acrylic ester in the monomer component constituting it is
  • the total amount of monomer components other than the hydroxyl group-containing (meth) acrylic acid ester is preferably 2 to 30% by weight, more preferably 3 to 25% by weight, and particularly preferably 5% by weight. % To 20% by weight.
  • the non-adhesive layer contains a (meth) acrylic polymer
  • the content ratio of the hydroxyl group-containing (meth) acrylic acid ester in the monomer component constituting the (meth) acrylic polymer in the non-adhesive layer is ) If the total amount of monomer components other than the acrylate ester is within the above range, a fine uneven structure is more efficiently formed on the surface of the non-adhesive layer.
  • the adhesive of the present invention is formed.
  • the (meth) acrylic polymer in the non-adhesive layer is preferably in a monomer component other than the hydroxyl group-containing (meth) acrylic acid ester in the monomer component constituting it.
  • (Meth) acrylic acid and / or (meth) acrylic acid ester may be included.
  • the content ratio of (meth) acrylic acid and (meth) acrylic acid ester is (meth) acrylic acid: (meth) acrylic acid ester by weight ratio, preferably 0: 100 to 20:80. More preferably, it is 0: 100 to 10:90, and still more preferably 0: 100 to 5:95.
  • the content ratio of (meth) acrylic acid and (meth) acrylic acid ester is within the above range, a fine uneven structure is more efficiently formed on the surface of the non-adhesive layer.
  • (Meth) acrylic polymer can be produced by any suitable polymerization method.
  • the non-adhesive layer may contain any appropriate additive as long as the effects of the present invention are not impaired.
  • additives include catalysts, ultraviolet absorbers, fillers, anti-aging agents, tackifiers, pigments, dyes, and silane coupling agents.
  • the non-adhesive layer has a non-adhesive test peel force of preferably less than 1.0 N / 20 mm, more preferably less than 0.5 N / 20 mm, and even more preferably less than 0.2 N / 20 mm.
  • a non-adhesive test peel force of the non-adhesive layer is within the above range, it is possible to further suppress the occurrence of over-adhesion when performing adsorption fixation by negative pressure.
  • the non-adhesive test peel force of the non-adhesive layer is measured based on the method described below.
  • the thickness of the non-adhesive layer is preferably 0.01 ⁇ m to 10 ⁇ m, more preferably 0.1 ⁇ m to 5 ⁇ m, and still more preferably 0.1 ⁇ m to 2 ⁇ m.
  • the thickness of the non-adhesive layer is less than 0.01 ⁇ m, blocking tends to occur.
  • the thickness of the non-adhesive layer is larger than 10 ⁇ m, the followability to deformation such as stretching may be deteriorated. If the thickness of the non-adhesive layer is less than 0.01 ⁇ m, the effects of the present invention may be difficult to be exhibited or the manufacture may be difficult.
  • Examples of the method of forming the non-adhesive layer on one side of the plastic film include a method of forming the non-adhesive layer by applying the material of the non-adhesive layer on one side of the plastic film and drying.
  • Examples of the coating method include a method using a bar coater, a gravure coater, a spin coater, a roll coater, a knife coater, an applicator and the like.
  • the pressure-sensitive adhesive tape of the present invention includes a pressure-sensitive adhesive layer on the surface of the plastic film of the present invention opposite to the non-stick layer of the plastic film.
  • the thickness of the pressure-sensitive adhesive layer is not particularly limited, and is preferably 1.0 ⁇ m to 30 ⁇ m, more preferably 1.0 ⁇ m to 20 ⁇ m, and further preferably 3.0 ⁇ m to 15 ⁇ m.
  • the thickness of the pressure-sensitive adhesive layer is less than 1.0 ⁇ m, there is a possibility that sufficient adhesive force cannot be expressed.
  • the thickness of the pressure-sensitive adhesive layer is larger than 30 ⁇ m, the adhesive force becomes too large depending on the use, and the adherend may be crushed during peeling or the like.
  • any appropriate pressure-sensitive adhesive can be adopted as long as the effects of the present invention are not impaired.
  • Examples of the material for the pressure-sensitive adhesive layer include (meth) acrylic polymer; natural rubber; special natural rubber grafted with monomers such as methyl methacrylate; SBS, SBR, SEPS, SIS, SEBS, polybutene, polyisobutene, polyisobutylene, And synthetic rubbers such as butyl rubber.
  • at least one (meth) acrylic polymer is preferable from the viewpoint that there is little adhesive residue on the adherend after peeling, high cohesiveness, and excellent transparency.
  • the content ratio of the (meth) acrylic polymer in the pressure-sensitive adhesive layer can be appropriately set according to the purpose.
  • the (meth) acrylic polymer is a resin composed of monomer components containing a (meth) acrylic monomer as a main monomer.
  • the content ratio of the (meth) acrylic monomer in the monomer component constituting the (meth) acrylic polymer is preferably 50% by weight or more, more preferably 70% by weight to 100% by weight, still more preferably 90% by weight or more. It is 100% by weight, particularly preferably 95% by weight to 100% by weight.
  • the monomer in the monomer component may be only one type or two or more types.
  • the (meth) acrylic monomer is preferably (meth) acrylic acid ester or (meth) acrylic acid.
  • (meth) acrylic acid esters examples include (meth) acrylic acid alkyl esters having 1 to 30 carbon atoms (including cycloalkyl groups), hydroxyl group-containing (meth) acrylic acid esters, and the like. Only one (meth) acrylic acid ester may be used, or two or more may be used.
  • Examples of (meth) acrylic acid alkyl esters of alkyl groups having 1 to 30 carbon atoms include, for example, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, Isopropyl (meth) acrylate, butyl (meth) acrylate, isobutyl (meth) acrylate, sec-butyl (meth) acrylate, t-butyl (meth) acrylate, pentyl (meth) acrylate, (meth) acrylic Amyl acid, hexyl (meth) acrylate, cyclohexyl (meth) acrylate, heptyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, octyl (meth) acrylate, isooctyl (meth) acrylate, (meth) Nonyl
  • (meth) acrylic acid esters preferred are (meth) acrylic acid alkyl esters of alkyl groups having 2 to 20 carbon atoms (including cycloalkyl groups), and more preferred are those having 4 to 18 carbon atoms. (Meth) acrylic acid alkyl ester of an alkyl group (including a cycloalkyl group).
  • hydroxyl group-containing (meth) acrylic acid ester examples include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate and the like.
  • the monomer component constituting the (meth) acrylic polymer preferably contains at least one selected from a hydroxyl group-containing monomer and a carboxyl group-containing monomer in order to sufficiently exhibit the effect as an adhesive. More preferably, it is a carboxyl group-containing monomer.
  • the monomer component which comprises the said (meth) acrylic-type polymer may contain acrylonitrile in order to fully express the effect as an adhesive.
  • hydroxyl group-containing monomer examples include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, allyl alcohol, and the like. Only one type of hydroxyl group-containing monomer may be used, or two or more types may be used.
  • carboxyl group-containing monomer examples include (meth) acrylic acid, carboxyethyl (meth) acrylate, carboxypentyl (meth) acrylate, crotonic acid, maleic acid, fumaric acid, and itaconic acid. Only one type of carboxyl group-containing monomer may be used, or two or more types may be used.
  • the content ratio of the hydroxyl group-containing monomer in the monomer component constituting the (meth) acrylic polymer is preferably from 0.1% by weight to It is 20% by weight, more preferably 0.1% by weight to 10% by weight.
  • the content ratio of the carboxyl group-containing monomer in the monomer component constituting the (meth) acrylic polymer is preferably 0.1 wt. % To 20% by weight, more preferably 0.1% to 10% by weight.
  • the monomer component constituting the (meth) acrylic polymer contains at least one selected from a hydroxyl group-containing monomer and a carboxyl group-containing monomer
  • a crosslinking agent when used, A cross-linking reaction can be efficiently generated, and the effect as an adhesive can be sufficiently exhibited.
  • the content ratio of the hydroxyl group-containing monomer in the monomer component constituting the (meth) acrylic polymer and the content ratio of the carboxyl group-containing monomer in the monomer component constituting the (meth) acrylic polymer are within the above range.
  • the content ratio of the hydroxyl group-containing monomer in the monomer component constituting the (meth) acrylic polymer and the content ratio of the carboxyl group-containing monomer in the monomer component constituting the (meth) acrylic polymer are more than the above range.
  • the amount is too large, the adhesive force becomes too large, and blocking may occur easily. Further, the adherend may be easily crushed during the peeling operation.
  • the pressure-sensitive adhesive layer preferably contains a crosslinking agent.
  • the content of the cross-linking agent in the pressure-sensitive adhesive layer can be appropriately set according to the purpose, but preferably the main resin component (preferably a (meth) acrylic polymer). On the other hand, it is 0.1 to 20% by weight.
  • crosslinking agent examples include an epoxy crosslinking agent, an isocyanate crosslinking agent, a melamine crosslinking agent, a peroxide crosslinking agent, a metal alkoxide crosslinking agent, a metal chelate crosslinking agent, a metal salt crosslinking agent, and a carbodiimide crosslinking.
  • melamine-based crosslinking agents, epoxy-based crosslinking agents, and isocyanate-based crosslinking agents are preferable because the effects of the present invention can be sufficiently expressed.
  • a crosslinking agent can be suitably selected as needed and may be only 1 type, and 2 or more types of mixed systems may be sufficient as it.
  • the pressure-sensitive adhesive layer may contain a plasticizer.
  • the content of the plasticizer in the pressure-sensitive adhesive layer can be appropriately set according to the purpose, but is preferably 0.1% by weight to 50% by weight. By keeping the content of the plasticizer in the pressure-sensitive adhesive layer within the above range, the effect of the present invention can be expressed more effectively.
  • the content ratio of the plasticizer in the pressure-sensitive adhesive layer is larger than 50% by weight, the pressure-sensitive adhesive layer becomes too flexible, and there is a possibility that adhesive residue and adherend contamination are likely to occur.
  • plasticizer examples include phthalate esters, trimellitic acid esters (Dainippon Ink Co., Ltd., W-700, trimellitic acid trioctyl, etc.), adipate esters (manufactured by J-Plus, D620, dioctyl adipate, diisononyl adipate, etc.), phosphate esters (such as tricresyl phosphate), adipic acid esters, citrate esters (such as acetyl citrate tributyl), sebacic acid esters, acceleratoric acid esters, maleic acid esters Benzoic acid ester, polyether polyester, epoxy polyester (epoxidized soybean oil, epoxidized linseed oil, etc.), polyester (low molecular polyester comprising carboxylic acid and glycol, etc.) and the like. In the present invention, it is preferable to use an ester plasticizer. Only one type of plasticizer may be used, or two or more types may be used.
  • the pressure-sensitive adhesive layer may contain any appropriate catalyst in order to promote a crosslinking reaction or the like.
  • the content of the catalyst in the pressure-sensitive adhesive layer can be appropriately set according to the purpose, but is preferably 0.01% by weight to 10% by weight. By keeping the content ratio of the catalyst in the pressure-sensitive adhesive layer within the above range, the effect of the present invention can be expressed more effectively.
  • catalysts examples include tetraisopropyl titanate, tetra-n-butyl titanate, tin octylate, lead octylate, cobalt octylate, zinc octylate, calcium octylate, lead naphthenate, cobalt naphthenate, dibutyltin Organometallic compounds such as acetate, dibutyltin dioctate, dibutyltin dilaurate, dioctyltin dilaurate, dibutyltin maleate; butylamine, dibutylamine, hexylamine, t-butylamine, ethylenediamine, isophoronediamine, imidazole, lithium hydroxide, potassium hydroxide, Basic compounds such as sodium methylate; p-toluenesulfonic acid, trichloroacetic acid, phosphoric acid, monoalkyl phosphoric acid, dial
  • the pressure-sensitive adhesive layer preferably has an SP value of 9.0 (cal / cm 3 ) 0.5 to 12.0 (cal / cm 3 ) 0.5 in order to further manifest the effects of the present invention. More preferably, it is 9.5 (cal / cm 3 ) 0.5 to 11.0 (cal / cm 3 ) 0.5 .
  • the SP value is a solubility parameter calculated by the Small formula. The SP value can be calculated by a method described in a known document (for example, Journal of Applied Chemistry, 3, 71, 1953., etc.).
  • the pressure-sensitive adhesive layer may contain any appropriate additive as long as the effects of the present invention are not impaired.
  • additives include ultraviolet absorbers, fillers, anti-aging agents, tackifiers, pigments, dyes, and silane coupling agents.
  • the pressure-sensitive adhesive tape of the present invention may have a release liner on the surface of the pressure-sensitive adhesive layer.
  • any appropriate separator can be adopted as the release liner.
  • a release liner for example, a base material having a release layer such as a plastic film or paper surface-treated with a release agent such as silicone-based, long-chain alkyl-based, fluorine-based, molybdenum sulfide; polytetrafluoroethylene, Low-adhesive substrate made of a fluoropolymer such as polychlorotrifluoroethylene, polyvinyl fluoride, polyvinylidene fluoride, tetrafluoroethylene / hexafluoropropylene copolymer, chlorofluoroethylene / vinylidene fluoride copolymer; And a low-adhesive substrate made of a nonpolar polymer such as a resin (for example, polyethylene, polypropylene, etc.).
  • the adhesive tape of the present invention can be used for any appropriate application. Since the pressure-sensitive adhesive tape of the present invention has the film for pressure-sensitive adhesive tapes of the present invention, as described above, overadhesion due to heat generation of the pedestal occurs when dicing or the like is performed by adsorbing and fixing to the fixing pedestal by negative pressure. Can be effectively suppressed, blocking in the roll form is effectively suppressed, and when unrolling from the roll form, it does not tear or tear, and the non-adhesive layer and the plastic film Familiarity is good and followability to deformation such as stretching is good. Therefore, it can be suitably used for semiconductor processing using a semiconductor wafer made of a fragile material and having a fine and fine circuit pattern as an adherend.
  • the adhesive tape of the present invention When the adhesive tape of the present invention is used for semiconductor processing, it is possible to effectively suppress the occurrence of over-adhesion due to heat generation or the like of the pedestal when performing dicing or the like by adsorbing and fixing to the pedestal for fixing by negative pressure.
  • the semiconductor manufacturing process including dicing can proceed smoothly.
  • film deformation and stress strain accumulation caused by blocking conventionally do not occur.
  • the stress strain since the stress strain is not released spontaneously after being bonded to the semiconductor wafer, the semiconductor wafer can be effectively prevented from being crushed.
  • the wafer used for the LED is made of a very fragile material such as gallium nitride, gallium arsenide, or silicon carbide, the pressure-sensitive adhesive tape of the present invention is very suitable for LED dicing.
  • Part means part by weight.
  • the amount of the reagent supplied in the solution is represented by the amount of solid content remaining after the solution is volatilized (solid content conversion amount).
  • the maximum elongation was measured with an Instron type tensile tester (manufactured by Shimadzu Corporation, Autograph) in accordance with JIS-K-7127. Specifically, after a sample having a width of 20 mm and a length of 100 mm was set at a distance between chucks of 50 mm, the sample was pulled at a pulling speed of 0.3 m / min, and the value at the time of breaking was measured.
  • the elastic modulus was measured according to JIS-K-7127.
  • ⁇ Arithmetic mean surface roughness Ra> Using a confocal laser microscope “LEXT3000” manufactured by OLYMPUS, measurement was performed in 3D mode with an objective lens of 20 times. The observation range in the 3D mode was determined by setting the positions where the CF image (confocal image) becomes dark when the lens is moved up and down as the observation range Top and Bottom, respectively. As the image capturing method in the 3D mode, image capturing was performed at a pitch of 0.2 ⁇ m by the Step method. Arithmetic mean surface roughness Ra was measured by measuring Ra at an arbitrary place by analysis mode roughness analysis. In addition, the value was calculated
  • required by the average value of n 5.
  • the indentation hardness of the surface was determined from the displacement and load obtained when the indenter was indented and the indentation area calculated theoretically.
  • the elastic modulus was obtained from the displacement and load obtained after removing the indenter and the indentation area calculated theoretically.
  • the slide glass was reciprocated once with a 2 kg roller, and the slide glass and the back surface of the tape-attached slide glass were bonded together. Left for a minute. After being left to cool to room temperature, it was peeled at 0 ° with an Instron type tensile tester (manufactured by Shimadzu Corporation, Autograph) at a tensile speed of 0.3 m / min. The peel force (maximum value) at that time was measured and evaluated according to the following criteria. ⁇ : Peeling force is less than 5.0N. (Triangle
  • ⁇ Non-stick test peel strength> Referring to JIS-Z-0237, an adhesive tape film or adhesive tape containing an adherend and a non-adhesive layer is held for 1 hour or more under storage at 23 ° C., and then the non-adhesive surface is applied to SUS430BA at a linear pressure of 8 kg / m, crimping at a crimping speed of 0.3 m / min, and the peeling force after 30 minutes was measured at a tensile speed of 0.3 m / min and 180 ° peel.
  • ⁇ 0.5 N / 20 mm or more and less than 1.0 N / 20 mm.
  • X 1.0 N / 20 mm or more.
  • the pressure-sensitive adhesive layer surface of the pressure-sensitive adhesive tape is pressure-bonded to the outermost surface (back layer) opposite to the pressure-sensitive adhesive layer of the same pressure-sensitive adhesive tape at a linear pressure of 8 kg / m and a pressure bonding speed of 0.3 m / min.
  • peeling was performed by a 180 ° peel test at a tensile rate of 0.3 m / min (based on JIS-Z-0237), and the blocking (peeling force) between the pressure-sensitive adhesive layer surface and the back layer was measured.
  • the evaluation was made as a comprehensive evaluation by measuring the peeling force, and confirming that the back layer dropped off and the pressure-sensitive adhesive layer was destroyed (cohesive failure, glue residue due to throwing failure). Evaluation was according to the following criteria. ⁇ : Peeling force less than 3.0 N / 20 mm, no visual drop-out, no destruction of the adhesive layer. X: Peeling force is 3.0 N / 20 mm or more, or there is a dropout by visual observation and destruction of the pressure-sensitive adhesive layer.
  • Throwing property confirmation test A The adhesive tape film or adhesive tape is stretched to 200% at a tensile speed of 0.3 m / min to 3 m / min, and the outermost side opposite to the adhesive layer of the adhesive tape film or adhesive tape during and after stretching is stretched. The detachability of the outer surface (back layer) was visually evaluated.
  • Thowing property confirmation test B After stretching in the same manner as the anchoring property confirmation test A, a NO. 31B manufactured by Nitto Denko Corporation was used as the back treatment layer, and the crimping speed was 0.3 m / min with a 2 kg roller (25 mm width). And then stored at 23 ° C.
  • the calculated Tg of the acrylic copolymer was 67.8 ° C., and the SP value was 10.7 (cal / cm 3 ) 0.5 .
  • Table 1 Various evaluation results are shown in Table 1. Moreover, when the non-adhesive layer is observed by SEM, as shown in FIGS.
  • the composition is different between the air interface side and the plastic film side due to the density of the morphology observation image, Silicone rich phase containing more silicone than (meth) acrylic polymer and (meth) acrylic polymer rich phase containing more than (meth) acrylic polymer than silicone, silicone rich phase and (meth)
  • the acrylic polymer-rich phase has a phase separation structure independent of each other, the silicone-rich phase exists on the air interface side (opposite side of the plastic film), and the (meth) acrylic polymer-rich phase is on the plastic film side It was observed that Further, when infrared spectroscopy (ATR-IR) was performed on the non-adhesive layer by a total reflection method, it was found that Si—CH 3 derived from a peak near 1725 cm ⁇ 1 derived from a carbonyl group in the (meth) acrylic polymer phase.
  • ATR-IR infrared spectroscopy
  • BA butyl acrylate
  • AN acrylonitrile
  • AA acrylic acid
  • melamine-based crosslinking agent butanol-modified melamine formaldehyde resin
  • a toluene solution of an adhesive comprising 10 parts by weight of “Super Becamine J-820-60N” (manufactured by Nippon Polyurethane) and 60 parts by weight of a DOP plasticizer (bis (2-ethylhexyl phthalate), manufactured by Jplus) was prepared. .
  • Table 1 The calculated Tg of the acrylic copolymer was 80.0 ° C.
  • the SP value was 10.4 (cal / cm 3 ) 0.5
  • Table 1 Various evaluation results are shown in Table 1.
  • Table 1 Various evaluation results are shown in Table 1.
  • Table 1 Various evaluation results are shown in Table 1.
  • Example 9 As a release liner, a 38 ⁇ m thick PET liner subjected to Si treatment was attached to the pressure-sensitive adhesive layer side of the pressure-sensitive adhesive tape (5) obtained in Example 5 to obtain a pressure-sensitive adhesive tape (9).
  • Table 1 Various evaluation results are shown in Table 1.
  • Table 1 Various evaluation results are shown in Table 1.
  • Table 1 Various evaluation results are shown in Table 1.
  • Example 3 In Example 3, except having not formed the non-adhesion layer, it carried out similarly to Example 3 and obtained the adhesive tape (C1). Various evaluation results are shown in Table 1.
  • the pressure-sensitive adhesive tape of the present invention has the film for pressure-sensitive adhesive tapes of the present invention, as described above, overadhesion due to heat generation of the pedestal occurs when dicing or the like is performed by adsorbing and fixing to the fixing pedestal by negative pressure. Can be effectively suppressed, blocking in the roll form is effectively suppressed, and when unrolling from the roll form, it does not tear or tear, and the non-adhesive layer and the plastic film Familiarity is good and followability to deformation such as stretching is good. Therefore, it can be suitably used for semiconductor processing using a semiconductor wafer made of a fragile material and having a fine and fine circuit pattern as an adherend.
  • the pressure-sensitive adhesive tape of the present invention When the pressure-sensitive adhesive tape of the present invention is used for semiconductor processing, it is possible to suppress the occurrence of over-adhesion when performing suction fixation by negative pressure, and thus the semiconductor manufacturing process including dicing can be smoothly advanced.
  • the adhesive tape of the present invention when the adhesive tape of the present invention is used for semiconductor processing, film deformation and stress strain accumulation caused by blocking conventionally do not occur.
  • the stress strain since the stress strain is not released spontaneously after being bonded to the semiconductor wafer, the semiconductor wafer can be effectively prevented from being crushed.
  • the wafer used for the LED is made of a very fragile material such as gallium nitride, gallium arsenide, or silicon carbide, the pressure-sensitive adhesive tape of the present invention is very suitable for LED dicing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Adhesive Tapes (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Dicing (AREA)
PCT/JP2013/053003 2012-02-28 2013-02-08 粘着テープ用フィルムおよび粘着テープ WO2013129079A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201380011463.1A CN104136217B (zh) 2012-02-28 2013-02-08 粘合带用薄膜及粘合带

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012041173A JP5946289B2 (ja) 2012-02-28 2012-02-28 粘着テープ用フィルムおよび粘着テープ
JP2012-041173 2012-02-28

Publications (1)

Publication Number Publication Date
WO2013129079A1 true WO2013129079A1 (ja) 2013-09-06

Family

ID=49082281

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/053003 WO2013129079A1 (ja) 2012-02-28 2013-02-08 粘着テープ用フィルムおよび粘着テープ

Country Status (4)

Country Link
JP (1) JP5946289B2 (zh)
CN (1) CN104136217B (zh)
TW (1) TWI568826B (zh)
WO (1) WO2013129079A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6471635B2 (ja) * 2015-07-21 2019-02-20 日立金属株式会社 ゴム積層体
CN109504322A (zh) * 2018-11-26 2019-03-22 常州市白鹭电器有限公司 Pe胶带胶水

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08197688A (ja) * 1995-01-24 1996-08-06 Teijin Ltd 積層フイルム
JP2004210823A (ja) * 2002-12-26 2004-07-29 Asahi Kasei Chemicals Corp 粘着テープ
JP2008031196A (ja) * 2006-07-26 2008-02-14 Nitto Denko Corp 金属箔粘着テープおよび冷蔵庫
JP2009239124A (ja) * 2008-03-27 2009-10-15 Furukawa Electric Co Ltd:The ウェハ表面保護テープ
JP2012245746A (ja) * 2011-05-30 2012-12-13 Iwao Kk 離型性シート部材

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW496881B (en) * 1997-05-13 2002-08-01 Teijin Ltd Release film
JP2008023926A (ja) * 2006-07-25 2008-02-07 Dainippon Printing Co Ltd 粘着フィルム
JP4767144B2 (ja) * 2006-10-04 2011-09-07 日東電工株式会社 レーザ加工用粘着シート
JP4620028B2 (ja) * 2006-10-19 2011-01-26 日東電工株式会社 基板加工用粘着シート
KR20100020906A (ko) * 2008-08-13 2010-02-23 소니 가부시끼가이샤 광학 필름 및 그 제조 방법, 눈부심방지성 필름, 광학층이 부착된 편광자 및 표시 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08197688A (ja) * 1995-01-24 1996-08-06 Teijin Ltd 積層フイルム
JP2004210823A (ja) * 2002-12-26 2004-07-29 Asahi Kasei Chemicals Corp 粘着テープ
JP2008031196A (ja) * 2006-07-26 2008-02-14 Nitto Denko Corp 金属箔粘着テープおよび冷蔵庫
JP2009239124A (ja) * 2008-03-27 2009-10-15 Furukawa Electric Co Ltd:The ウェハ表面保護テープ
JP2012245746A (ja) * 2011-05-30 2012-12-13 Iwao Kk 離型性シート部材

Also Published As

Publication number Publication date
JP2013177487A (ja) 2013-09-09
TW201343855A (zh) 2013-11-01
TWI568826B (zh) 2017-02-01
CN104136217A (zh) 2014-11-05
CN104136217B (zh) 2016-08-17
JP5946289B2 (ja) 2016-07-06

Similar Documents

Publication Publication Date Title
JP5610642B2 (ja) 粘着テープ用フィルムおよび粘着テープ
JP6005952B2 (ja) 粘着テープ用フィルムおよび粘着テープ
JP6071712B2 (ja) 粘着テープ
JP6095996B2 (ja) 粘着テープ
JP6211771B2 (ja) 粘着テープ
JP6021263B2 (ja) 粘着テープ
KR102032066B1 (ko) 점착 테이프용 필름 및 점착 테이프
KR101920086B1 (ko) 점착 테이프용 필름 및 점착 테이프
JP6075832B2 (ja) 粘着テープ用フィルムおよび粘着テープ
JP5946289B2 (ja) 粘着テープ用フィルムおよび粘着テープ
JP5946290B2 (ja) 粘着テープ用フィルムおよび粘着テープ
KR101924484B1 (ko) 점착 테이프용 필름 및 점착 테이프

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13754578

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13754578

Country of ref document: EP

Kind code of ref document: A1