Title:
ADHESIVE SHEET AND PEELING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/063129
Kind Code:
A1
Abstract:
The present invention enables an object held by an adhesive sheet to be picked up using a milder operation. This adhesive sheet comprises: a base material; and an adhesive layer that has protrusions/recessions on the front surface thereof. The adhesive layer includes a base portion and a projection section provided on the base portion, and satisfies relational expression (1), the base portion being formed from a portion extending in the thickness direction of the adhesive layer from a recess section at which the thickness of the adhesive layer is at a minimum to the surface on the opposite side from the front surface on which the protrusions/recesses are provided. Relational expression (1): 0.25
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Inventors:
NISHIJIMA KENTA (JP)
ONISHI GO (JP)
SUEYOSHI HARUKI (JP)
KATO TOMOFUMI (JP)
SUGINO TAKASHI (JP)
MASUMOTO MUTSUMI (JP)
ONISHI GO (JP)
SUEYOSHI HARUKI (JP)
KATO TOMOFUMI (JP)
SUGINO TAKASHI (JP)
MASUMOTO MUTSUMI (JP)
Application Number:
PCT/JP2023/034250
Publication Date:
March 28, 2024
Filing Date:
September 21, 2023
Export Citation:
Assignee:
LINTEC CORP (JP)
International Classes:
H01L21/301; B32B3/30; B32B7/06; B32B27/00; B32B27/30; C09J4/02; C09J5/00; C09J7/24; C09J7/38; C09J133/00; C09J201/00; H01L21/56; H01L21/683
Domestic Patent References:
WO2019216262A1 | 2019-11-14 | |||
WO2020196758A1 | 2020-10-01 | |||
WO2019172220A1 | 2019-09-12 |
Foreign References:
JP2003336018A | 2003-11-28 | |||
JP2020061529A | 2020-04-16 |
Attorney, Agent or Firm:
OHTSUKA PATENT OFFICE, P.C. (JP)
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