Title:
保護膜形成用複合シート
Document Type and Number:
Japanese Patent JP6557912
Kind Code:
B2
Abstract:
A composite sheet (1) for forming a protective film, including an adhesive sheet (2) formed by laminating an adhesive layer (22) on one surface of a base material (21), and a protective-film forming film (3) laminated on the adhesive layer (22) side of the adhesive sheet (2), wherein the adhesive sheet (2) does not have a through hole penetrating through the adhesive sheet (2) in the thickness direction, and the light transmittance of the adhesive sheet (2) at a wavelength of 532 nm which is measured using an integrating sphere is from 75 to 85%. According to this composite sheet (1) for forming a protective film, while using an adhesive sheet having no through holes, it is still possible to suppress the generation of a gas reservoir between the adhesive sheet and the protective-film forming film (protective film) when laser printing is performed on the protective-film forming film (protective film).
Inventors:
Hiroyuki Yoneyama
Naoki Saeki
Naoki Saeki
Application Number:
JP2015529507A
Publication Date:
August 14, 2019
Filing Date:
July 16, 2014
Export Citation:
Assignee:
LINTEC CORPORATION
International Classes:
B32B7/023; B32B27/00; B32B27/30; B32B27/32; B32B27/36; C09J7/20; C09J7/22; C09J7/30; C09J201/00; H01L21/301
Domestic Patent References:
| JP2004214288A | ||||
| JP2012169441A | ||||
| JP2004142430A | ||||
| JP2003221564A | ||||
| JP6143360A | ||||
| JP2010087279A | ||||
| JP2011187571A |
Foreign References:
| WO2013047674A1 |
Attorney, Agent or Firm:
Nishizawa Kazumi
Mitsunaga Igarashi
Hiroyuki Kato
Mitsunaga Igarashi
Hiroyuki Kato