公开(公告)号：US20160167345A1

公开(公告)日：2016-06-16

申请号：US14908524

申请日：2014-01-30

Applicant: LINTEC CORPORATION

Inventor： Naoya Saiki ,  Daisuke Yamamoto ,  Hiroyuki Yamamoto ,  Ken Takano

IPC: B32B27/06 ,  C09D133/08 ,  H01L21/683 ,  B32B27/30 ,  H01L21/66 ,  H01L23/31 ,  C09D5/00 ,  B32B27/38

CPC classification number: B32B27/06 ,  B32B7/06 ,  B32B7/12 ,  B32B27/08 ,  B32B27/308 ,  B32B27/32 ,  B32B27/36 ,  B32B27/38 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/40 ,  B32B2307/54 ,  B32B2307/748 ,  B32B2457/14 ,  B32B2571/00 ,  C09D5/00 ,  C09D133/08 ,  C09J7/22 ,  C09J7/30 ,  C09J133/06 ,  C09J2201/622 ,  C09J2203/326 ,  H01L21/6836 ,  H01L22/12 ,  H01L23/3157 ,  H01L23/544 ,  H01L2221/68318 ,  H01L2221/68336 ,  H01L2221/68377 ,  H01L2221/68381 ,  H01L2223/54486 ,  H01L2924/0002 ,  H01L2924/00

Abstract: Provided is a sheet 2 for forming a protective film including a protective film-forming film 1 of which the light transmittance at a wavelength of 1600 nm is 25% or greater, and light transmittance at a wavelength of 550 nm is 20% or less, and a release sheet 21 which is laminated on one or both surfaces of the protective film-forming film 1. According to such a sheet 2 for forming a protective film, cracks existing in a workpiece or a manufactured product obtained by processing the workpiece can be inspected and a protective film in which grinding marks existing in the workpiece or the manufactured product are not visually recognized can be formed.

Abstract translation: 提供一种用于形成保护膜的片材2，其包括其中在1600nm波长下的透光率为25％或更高的保护膜形成膜1，并且在550nm的波长下的透光率为20％以下， 以及层压在保护膜形成膜1的一个或两个表面上的剥离片21.根据这种用于形成保护膜的片材2，存在于通过加工工件获得的工件或制造产品中的裂纹可以是 并且可以形成保护膜，其中存在于工件或制造产品中的磨痕不能被目视识别。