Abstract: A wafer-fixing tape, having: an temporary-adhesive layer provided on a substrate film, wherein the substrate film contains an ionomer resin comprising a terpolymer crosslinked by a metal ion, and wherein an arithmetic average roughness Ra of a surface of the substrate film opposite to the temporary-adhesive layer 5b is from 0.1 to 3.0 ?m; a processing method of a semiconductor wafer; and a semiconductor chip.

Abstract: A conductive adhesive that does not contain toxic substances such as solder (lead) and shows excellent adhesiveness. Specifically, it is a conductive adhesive composition, which includes: (A) a thermosetting resin; (C) a filler that contains a metal element; and (D) at least one catalyst or curing agent, wherein the reaction initiation temperature for the (A) thermosetting resin and the (D) at least one catalyst or curing agent is 180° C. or higher. More preferably, the reaction initiation temperature is 200° C. or higher. More preferably, it is a conductive adhesive composition that further includes (B) a flux and (E) a polymer component.

Abstract: A method of processing a semiconductor wafer, in which a mask is formed: by cutting, with CO2 laser, a portion corresponding to a street, out of a temporary-adhesive of a surface protective tape to protect on a patterned face; carrying out dicing with SF6 plasma; and carrying out ashing, by removing a layer of the temporary-adhesive, with O2 plasma; a semiconductor chip; and a surface protective tape.

Abstract: A resin composition for sealing an electronic device and other things being capable of suppressing the permeation of water vapor is provided. The present invention includes a polybutadiene polymer represented by chemical formula (1) and having a (meth)acryloyl group at a terminal end; and a photopolymerization initiator, and does not include a thermoplastic resin having a mass-average molecular weight of 50,000 or more: wherein R1 and R2 each represent a hydroxyl group or H2C?C(R7)—COO—; R3 and R4 each represent a C1-C16 substituted or unsubstituted divalent organic group; R5, R6 and R7 each represent a hydrogen atom or a C1-C10 alkyl group, and at least one organic group represented by chemical formula (2) is included within chemical formula (1); l and m each represent 0 or 1; n represents an integer of 15-150; and x:y=0 to 100:100 to 0; R1 and R2 are never both a hydroxyl group.

Abstract: A resin composition for sealing an electronic device and other things being capable of sealing an electronic device without trapping air and being capable of suppressing the permeation of water vapor is provided. The present invention includes a polybutadiene polymer represented by chemical formula (1) and having a (meth) acryloyl group at a terminal end; and a photopolymerization initiator, and does not include a thermoplastic resin having a mass-average molecular weight of 50,000 or more: wherein R1 and R2 each represent a hydroxyl group or H2C?C(R7)—COO—; R3 and R4 each represent a C1-C16 substituted or unsubstituted, non-N-containing divalent organic group; R5, R6 and R7 each represent a hydrogen atom or a C1-C10 alkyl group; l and m each represent 0 or 1; n represents an integer from 15 to 150; and x:y=0 to 100:100 to 0; R1 and R2 are never both a hydroxyl group.

Abstract: An adhesive film that can solve the problem of pickup defect and improve the yield rate of semiconductor packages. The adhesive film includes: (A) a bismaleimide resin; (B) a radical initiator; and (C) a coupling agent that contains a (meth)acrylic group. Further, an adhesive film with dicing tape, which includes such an adhesive film laminated onto a dicing tape, is provided. Furthermore, a semiconductor package that includes such an adhesive film with dicing tape is provided.

Abstract: Provided are a resin composition for element encapsulation for organic electronic devices which is transparent, has excellent flexibility, water vapor barrier properties, and adhesive force, and can suppress the generation of dark spots, a resin sheet for element encapsulation for organic electronic devices, an organic electroluminescent element, and an image display device. This adhesive resin composition for element encapsulation for organic electronic devices is used to seal an element for organic electronic devices, and is characterized by containing a diene polymer and a softening agent, in which the content of the softening agent is from 5% by mass to 30% by mass of the total mass.

Abstract: Provided is a film for semiconductor protection, which can prevent warpage in a semiconductor wafer or a semiconductor chip and can also prevent the occurrence of chipping or ref low cracking. The film for semiconductor protection of the invention has a metal layer to be stuck to the back surface of a semiconductor chip, and an adhesive layer for adhering the metal layer to the back surface of the semiconductor chip, the surface free energy of the face of the adhesive layer on the side that is adhered to the semiconductor chip and the surface free energy of the face on the side that is adhered to the metal layer are together 35 mJ/m2 or greater, and the peeling force between the adhesive layer in the B-stage state and the metal layer is 0.3 N/25 mm or higher.

Abstract: A wafer-fixing tape, having: an temporary-adhesive layer provided on a substrate film, wherein the substrate film contains an ionomer resin comprising a terpolymer crosslinked by a metal ion, and wherein an arithmetic average roughness Ra of a surface of the substrate film opposite to the temporary-adhesive layer 5b is from 0.1 to 3.0 ?m; a processing method of a semiconductor wafer; and a semiconductor chip.

Abstract: A method of processing a semiconductor wafer, in which a mask is formed: by cutting, with CO2 laser, a portion corresponding to a street, out of a temporary-adhesive of a surface protective tape to protect on a patterned face; carrying out dicing with SF6 plasma; and carrying out ashing, by removing a layer of the temporary-adhesive, with O2 plasma; a semiconductor chip; and a surface protective tape.

Abstract: A transparent resin composition for sealing an organic EL element and other things having a sufficient effect of blocking moisture and excellent flexibility is provided. As essential components, a thermoplastic resin, tackifying resin and organometallic compound represented by the following chemical formula are included, having a light transmittance of 85% or more, and having a relationship of AM/Y<162, A: the acid value excluding the organometallic compound M: the weight average molecular weight of the organometallic compound Y: the weight ratio of the organometallic compound with respect to 100 parts by weight of resin components wherein the thermoplastic resin contains a hydride of a styrene-based A-B-A type triblock, wherein R1 to R4 represent organic groups including an alkyl group, aryl group, alkoxy group, cycloalkyl group and acyl group, each having a carbon number of 1 or more and 8 or less, M represents a metal atom having 3 valency.

Abstract: A highly reliable adhesive film that mitigates curving caused by the difference in linear expansion coefficients between the adherends, without adding large stress on the adherends. The adhesive film includes: (A) a curable resin with a structure containing an alicyclic hydrocarbon with 5 to 8 carbons, which is substituted by at least 4 alkyl groups of 4 to 12 carbons, which further contains at least one curable part; and (B) a polymerization initiator with a one-hour half-life temperature of 140° C. or higher. Further, an adhesive film with dicing tape, which includes such an adhesive film laminated on to a dicing tape, is provided.

Abstract: A maleimide film that utilizes maleimide resin, which shows high heat history resistance and is highly reliable, and an adhesive film with dicing tape including the maleimide film laminated on to a dicing tape. Specifically, it is a maleimide adhesive film, which includes a maleimide resin and a radical initiator with a one-hour half-life temperature of 140° C. or higher. Preferably, it is a maleimide adhesive film, wherein the maleimide resin is of a specific structure. Further, an adhesive film with dicing tape, which included such a maleimide adhesive film laminated on to a dicing tape, is provided.

Abstract: An adhesive film that can solve the problem of pickup defect and improve the yield rate of semiconductor packages. The adhesive film includes: (A) a bismaleimide resin; (B) a radical initiator; and (C) a coupling agent that contains a (meth)acrylic group. Further, an adhesive film with dicing tape, which includes such an adhesive film laminated onto a dicing tape, is provided. Furthermore, a semiconductor package that includes such an adhesive film with dicing tape is provided.

Abstract: An adhesive film that shows excellent heat resistance while showing excellent stress relaxation property, which further shows high conductivity that enables application to rear-side electrodes for power semiconductors without the use of expensive precious metals such as silver, which also shows sufficient adhesive strength without protruding from the device, and a method for processing semiconductors using the same, are provided. In particular, a conductive adhesive film, which includes two or more types of metal particles including at least Cu and a polymer that has a polydimethylsiloxane structure, is provided. Further, a dicing die bonding film, which is obtained by laminating a dicing tape on the conductive adhesive film, as well as a method for processing semiconductor wafers using said adhesive film and the dicing die bonding film, are provided.

Abstract: A conductive adhesive that does not contain toxic substances such as solder (lead) and shows excellent adhesiveness. Specifically, it is a conductive adhesive composition, which includes: (A) a thermosetting resin; (C) a filler that contains a metal element; and (D) at least one catalyst or curing agent, wherein the reaction initiation temperature for the (A) thermosetting resin and the (D) at least one catalyst or curing agent is 180° C. or higher. More preferably, the reaction initiation temperature is 200° C. or higher. More preferably, it is a conductive adhesive composition that further includes (B) a flux and (E) a polymer component.

Abstract: The adhesive sheet wound into a roll includes: a long release film; an adhesive layer provided in a label form on the release film; and a pressure-sensitive adhesive film having a label part covering the adhesive layer and provided so as to be in contact with the release film around the adhesive layer and a peripheral part surrounding an outside of the label part, wherein a through hole penetrating the pressure-sensitive adhesive film is provided outside a portion corresponding to a part of the adhesive layer intended to be attached to an adherend and inside the label part, and wherein outer circumference of the adhesive layer× 1/43?maximum width of the through hole×number of the through holes per label part of the pressure-sensitive adhesive film?outer circumference of the adhesive layer is satisfied.

Abstract: An adhesive sheet 10 wound into a roll includes: a long release film 11; an adhesive layer 12 provided in a label form on the release film 11; and a pressure-sensitive adhesive film 13 having a label part 13a covering the adhesive layer 12 and provided so as to be in contact with the release film 11 around the adhesive layer 12 and a peripheral part 13b surrounding an outside of the label part 13a, wherein a through hole 14 penetrating the release film 11 is provided in a place including a portion corresponding to an outside of a part 15 of the adhesive layer 12 intended to be attached to an adherend and an inside of the label part 13a.

Abstract: A resin composition for sealing an electronic device and other things being capable of suppressing the permeation of water vapor is provided. The present invention includes a polybutadiene polymer represented by chemical formula (1) and having a (meth)acryloyl group at a terminal end; and a photopolymerization initiator, and does not include a thermoplastic resin having a mass-average molecular weight of 50,000 or more: wherein R1 and R2 each represent a hydroxyl group or H2C?C(R7)—COO—; R3 and R4 each represent a C1-C16 substituted or unsubstituted divalent organic group; R5, R6 and R7 each represent a hydrogen atom or a C1-C10 alkyl group, and at least one organic group represented by chemical formula (2) is included within chemical formula (1); l and m each represent 0 or 1; n represents an integer of 15-150; and x:y=0 to 100:100 to 0; R1 and R2 are never both a hydroxyl group.

Abstract: A resin composition for sealing an electronic device and other things being capable of sealing an electronic device without trapping air and being capable of suppressing the permeation of water vapor is provided. The present invention includes a polybutadiene polymer represented by chemical formula (1) and having a (meth) acryloyl group at a terminal end; and a photopolymerization initiator, and does not include a thermoplastic resin having a mass-average molecular weight of 50,000 or more: wherein R1 and R2 each represent a hydroxyl group or H2C?C(R7)—COO—; R3 and R4 each represent a C1-C16 substituted or unsubstituted, non-N-containing divalent organic group; R5, R6 and R7 each represent a hydrogen atom or a C1-C10 alkyl group; l and m each represent 0 or 1; n represents an integer from 15 to 150; and x:y=0 to 100:100 to 0; R1 and R2 are never both a hydroxyl group.