摘要:
A method for temporarily bonding a wafer to a support via a temporary bonding arrangement is provided. The arrangement is a composite temporary adhesive layer consisting of a non-silicone thermoplastic resin layer (A) which is releasably bonded to the wafer, a thermosetting siloxane polymer layer (B) laid thereon, and a thermosetting siloxane-modified polymer layer (C) releasably bonded to the support. The method comprises the steps of providing a wafer laminate having a thermosetting silicone composition layer (B') formed on the resin layer (A) which has been formed on the wafer, providing a support laminate having a siloxane-containing composition layer (C') formed on the support, joining and heating layer (B') and layer (C') in vacuum for bonding and curing the layers together.
摘要:
The present invention provides: a temporary adhesive for wafer processing, said temporary adhesive being used for the purpose of provisionally bonding a wafer to a support, while being composed of a photocurable silicone resin composition that contains a non-functional organopolysiloxane; a wafer processed body; and a method for producing a thin wafer, said method using a temporary adhesive for wafer processing.
摘要:
A method for temporarily bonding a wafer to a support via a temporary bonding arrangement is provided. The arrangement is a composite temporary adhesive layer consisting of a non-silicone thermoplastic resin layer (A) which is releasably bonded to the wafer, a thermosetting siloxane polymer layer (B) laid thereon, and a thermosetting siloxane-modified polymer layer (C) releasably bonded to the support. The method comprises the steps of providing a wafer laminate having a thermosetting silicone composition layer (B') formed on the resin layer (A) which has been formed on the wafer, providing a support laminate having a siloxane-containing composition layer (C') formed on the support, joining and heating layer (B') and layer (C') in vacuum for bonding and curing the layers together.
摘要:
The present invention is directed to a wafer processing laminate including a support, a temporary adhesive material layer formed on the support, and a wafer, having a circuit-forming front surface and a back surface to be processed, laminated on the temporary adhesive material layer, in which the temporary adhesive material layer is composed of a complex temporary adhesive material layer having a three-layered structure that includes a first temporary adhesive layer composed of a thermoplastic organopolysiloxane polymer layer (A) releasably adhering to the front surface of the wafer, a second temporary adhesive layer composed of a thermosetting siloxane-modified polymer layer (B) releasably laminated on the first temporary adhesive layer, and a third temporary adhesive layer composed of a thermosetting siloxane polymer layer (C) releasably laminated on the second temporary adhesive layer and releasably adhering to the support. The invention provides a temporary adhesive material for a wafer processing that facilitates temporary adhesion and separation, and allows easy separation even when a thin wafer is cut before separation, and a wafer processing laminate that can increase productivity of the thin wafers.
摘要:
The present invention is a wafer processing laminate including a support (3), a temporary adhesive material layer (2) formed on the support, and a wafer (1) stacked on the temporary adhesive material layer, the wafer having a front surface on which a circuit is formed and a back surface to be processed, wherein the temporary adhesive material layer comprises a three-layered complex temporary adhesive material layer that includes a first temporary adhesive layer composed of a thermoplastic organopolysiloxane polymer layer (A) having a thickness of less than 100 nm and releasably laminated to the front surface of the wafer, a second temporary adhesive layer composed of a thermosetting siloxane-modified polymer layer (B) releasably laminated to the first temporary adhesive layer, and a third temporary adhesive layer composed of a thermoplastic organopolysiloxane polymer layer (A') having a thickness of less than 100 nm, releasably laminated to the second temporary adhesive layer, and releasably laminated to the support. This wafer processing laminate can withstand a thermal process at a high temperature exceeding 300°C, and can increase productivity of thin wafers.
摘要:
The present invention is a temporary adhesion method for temporarily adhering a wafer to a support via a temporary adhesive layer, the wafer having a first main surface including a circuit and a second main surface to be processed, the second main surface being located on an opposite side to the first main surface, wherein a temporary adhesion between the first main surface of the wafer and the support is performed via the temporary adhesive layer including a dry adhesive fiber structure having a plurality of pillar structures. This can provide a temporary adhesion method that can achieve sufficiently strong temporary adhesion between a wafer and a support, easy removal of the wafer from the support, and repeatedly temporary adhesion and removal.
摘要:
A bonding arrangement (2) comprising a silicone-base adhesive composition is suited for temporarily bonding a wafer (1) to a support (3) for wafer processing. The bonding arrangement includes a first temporary bond layer (A) of non-silicone thermoplastic resin, and a second temporary bond layer (B) of thermosetting silicone polymer and/or a third temporary bond layer (C) of thermosetting siloxane-modified polymer. The second and/or third bond layer contains an antistatic agent.