Abstract:
The film for back surface of flip-chip semiconductor according to the present invention is a film for back surface of flip-chip semiconductor to be formed on a back surface of a semiconductor element having been flip-chip connected onto an adherend, wherein a tensile storage elastic modulus at 23° C. after thermal curing is 10 GPa or more and not more than 50 GPa. According to the film for back surface of flip-chip semiconductor of the present invention, since it is formed on the back surface of a semiconductor element having been flip-chip connected onto an adherend, it fulfills a function to protect the semiconductor element. In addition, since the film for back surface of flip-chip semiconductor according to the present invention has a tensile storage elastic modulus at 23° C. after thermal curing of 10 GPa or more, a warp of the semiconductor element generated at the time of flip-chip connection of a semiconductor element onto an adherend can be effectively suppressed or prevented.
Abstract:
The present invention relates to a film for flip chip type semiconductor back surface, which is to be disposed on the back surface of a semiconductor element to be flip chip-connected onto an adherend, the film containing a resin and a thermoconductive filler, in which the content of the thermoconductive filler is at least 50% by volume of the film, and the thermoconductive filler has an average particle size relative to the thickness of the film of at most 30% and has a maximum particle size relative to the thickness of the film of at most 80%.
Abstract:
The present invention relates to a film for back surface of flip-chip semiconductor, which is to be formed on a back surface of a semiconductor element flip-chip connected onto an adherend, wherein an amount of shrinkage of the film for back surface of flip-chip semiconductor due to thermal curing is 2% by volume or more and not more than 30% by volume relative to a total volume of the film for back surface of flip-chip semiconductor before the thermal curing. According to the film for back surface of flip-chip semiconductor according to the present invention, since it is formed on the back surface of a semiconductor element having been flip-chip connected onto an adherend, it fulfills a function to protect the semiconductor element. In addition, in the film for back surface of flip-chip semiconductor according to the present invention, since an amount of shrinkage due to thermal curing is 2% by volume or more relative to a total volume of the film for back surface of flip-chip semiconductor before the thermal curing, a warp of a semiconductor element to be generated at the time of flip-chip connecting the semiconductor element onto an adherend can be effectively suppressed or prevented.
Abstract:
The present invention relates to a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material having an asperities-formed surface, and a pressure-sensitive adhesive layer laminated on the base material, and a film for semiconductor back surface laminated on the pressure-sensitive adhesive layer of the dicing tape, in which the dicing tape has a haze of at most 45%.
Abstract:
The present invention relates to a film for flip chip type semiconductor back surface to be formed on the back surface of a semiconductor element flip chip-connected to an adherend, the film for flip chip type semiconductor back surface having a tensile storage elastic modulus at 25° C. after thermal curing within a range of from 10 GPa to 30 GPa, in which the tensile storage elastic modulus at 25° C. after thermal curing of the film for flip chip type semiconductor back surface falls within a range of from 4 times to 20 times the tensile storage elastic modulus at 25° C. before thermal curing thereof.
Abstract:
The present invention relates to a film for flip chip type semiconductor back surface to be formed on a back surface of a semiconductor element flip chip-connected to an adherend, the film for flip chip type semiconductor back surface containing an inorganic filler in an amount within a range of 70% by weight to 95% by weight based on the whole of the film for flip chip type semiconductor back surface.
Abstract:
The present invention relates to a film for back surface of flip-chip semiconductor, which is to be formed on a back surface of a semiconductor element flip-chip connected onto an adherend, wherein an amount of shrinkage of the film for back surface of flip-chip semiconductor due to thermal curing is 2% by volume or more and not more than 30% by volume relative to a total volume of the film for back surface of flip-chip semiconductor before the thermal curing. According to the film for back surface of flip-chip semiconductor according to the present invention, since it is formed on the back surface of a semiconductor element having been flip-chip connected onto an adherend, it fulfills a function to protect the semiconductor element. In addition, in the film for back surface of flip-chip semiconductor according to the present invention, since an amount of shrinkage due to thermal curing is 2% by volume or more relative to a total volume of the film for back surface of flip-chip semiconductor before the thermal curing, a warp of a semiconductor element to be generated at the time of flip-chip connecting the semiconductor element onto an adherend can be effectively suppressed or prevented.
Abstract:
The present invention provides a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material and a pressure-sensitive adhesive layer provided on the base material; and a film for flip chip type semiconductor back surface provided on the pressure-sensitive adhesive layer, in which the film for flip chip type semiconductor back surface contains a black pigment.
Abstract:
The present invention provides a dicing tape-integrated film for semiconductor back surface, including a film for flip chip type semiconductor back surface for protecting a back surface of a semiconductor element flip chip-connected onto an adherend, and a dicing tape, the dicing tape including a base material and a pressure-sensitive adhesive layer provided on the base material, the film for flip chip type semiconductor back surface being formed on the pressure-sensitive adhesive layer, in which the pressure-sensitive adhesive layer is a radiation-curable pressure-sensitive adhesive layer whose pressure-sensitive adhesive force toward the film for flip chip type semiconductor back surface is decreased by irradiation with a radiation ray.
Abstract:
The present invention relates to a dicing tape-integrated film for semiconductor back surface, which includes: a dicing tape including a base material layer, a first pressure-sensitive adhesive layer and a second pressure-sensitive adhesive layer stacked in this order, and a film for semiconductor back surface stacked on the second pressure-sensitive adhesive layer of the dicing tape, in which a peel strength Y between the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer is larger than a peel strength X between the second pressure-sensitive adhesive layer and the film for semiconductor back surface, and in which the peel strength X is from 0.01 to 0.2 N/20 mm, and the peel strength Y is from 0.2 to 10 N/20 mm.