Method for producing thin wafer
    1.
    发明授权

    公开(公告)号:US11069557B2

    公开(公告)日:2021-07-20

    申请号:US16553503

    申请日:2019-08-28

    摘要: A method for producing a thin wafer includes: separating the support body from the laminate by irradiating a wafer laminate, which includes a support body, an adhesive layer formed on the support body, and a wafer laminated with a surface thereof including a circuit plane facing the adhesive layer, with light from a side of the support body of the wafer laminate; and after separating, removing a resin layer remaining on the wafer from the wafer by peeling, wherein the adhesive layer includes only a resin layer A with a light-blocking property, and a resin layer B including a thermosetting silicone resin or a non-silicone thermoplastic resin in this order from the side of the support body.

    Temporary adhesive film roll for substrate processing, method for manufacturing thin wafer

    公开(公告)号:US10796939B2

    公开(公告)日:2020-10-06

    申请号:US15991533

    申请日:2018-05-29

    摘要: A temporary adhesive film roll for substrate processing, includes: a roll axis and a composite film-shaped temporary-adhesive material for temporarily bonding a substrate to a support, the composite film-shaped temporary-adhesive material being rolled up around the roll axis; wherein the composite film-shaped temporary-adhesive material includes a first temporary adhesive layer composed of a thermoplastic resin, a second temporary adhesive layer composed of a thermosetting resin, and a third temporary adhesive layer composed of a thermosetting resin which is different from that of the second temporary adhesive layer. The temporary adhesive film roll for substrate processing is capable of giving a temporary adhesive material which facilitates temporary adhesion between a substrate and a support, rapidly forms a temporary adhesive material layer on a substrate or a support, has excellent resistance to a thermal process such as chemical vapor deposition, and is easily separated to improve the productivity of thin wafers.

    Semiconductor device, making method, and laminate

    公开(公告)号:US10297485B2

    公开(公告)日:2019-05-21

    申请号:US15928305

    申请日:2018-03-22

    摘要: A semiconductor device is provided comprising a support, an adhesive resin layer, an insulating layer, a redistribution layer, a chip layer, and a mold resin layer. The adhesive resin layer consists of a resin layer (A) comprising a photo-decomposable resin containing a fused ring in its main chain and a resin layer (B) comprising a non-silicone base thermoplastic resin and having a storage elastic modulus E′ of 1-500 MPa at 25° C. and a tensile break strength of 5-50 MPa. The semiconductor device is easy to fabricate and has thermal process resistance, the support is easily separated, and a semiconductor package is efficiently produced.