| 摘要 |
There are provided a base material-less double-sided pressure-sensitive adhesive sheet without warping due to shrinkage of a base material after heat treatment, and having good peelability in heat peeling, and a method for manufacturing electronic parts or semiconductors by using the pressure-sensitive adhesive sheet. A heat-peelable pressure-sensitive adhesive sheet which is a base material-less double-sided pressure-sensitive adhesive sheet including a heat-expandable pressure-sensitive adhesive layer containing heat-expandable microspheres and a pressure-sensitive adhesive layer different from the heat-expandable pressure-sensitive adhesive layer and laminated thereon, wherein the pressure-sensitive adhesive layer has a higher elastic modulus than the heat-expandable pressure-sensitive adhesive layer.
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