公开(公告)号：US20170072659A1

公开(公告)日：2017-03-16

申请号：US15123303

申请日：2015-02-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Audrey A. Sherman ,  Kam Poi Chia ,  Leonard D. Cprek ,  Kevin R. Schaffer

IPC: B32B3/30 ,  B32B1/02 ,  H01L21/683 ,  B32B27/08 ,  B32B27/32 ,  B32B27/36 ,  C09J7/02 ,  B32B7/14

CPC classification number: B32B3/30 ,  B32B1/02 ,  B32B7/12 ,  B32B7/14 ,  B32B27/08 ,  B32B27/32 ,  B32B27/365 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2255/28 ,  B32B2307/31 ,  B32B2307/518 ,  B32B2307/582 ,  B32B2307/704 ,  B32B2405/00 ,  B32B2439/40 ,  C09J7/29 ,  C09J177/00 ,  C09J2201/122 ,  C09J2201/162 ,  C09J2201/28 ,  C09J2201/61 ,  C09J2201/622 ,  C09J2203/326 ,  H01L21/6836 ,  H01L2221/68313 ,  H01L2221/68318

Abstract: Cover tapes for securing electronic parts in a carrier tape are provided. The cover tape includes opposing edges extending along a longitudinal direction of the cover tape orthogonal to a transverse direction, and first and second layers. The first layer is stretch-oriented along the longitudinal direction at a first stretch ratio, and the first and second layers are stretch-oriented along the transverse direction at a second stretch ratio greater than the first stretch ratio. The cover tape further includes a first major surface extending along the longitudinal direction and between the opposing edges, the first major surface including a plurality of linear depressions extending along the longitudinal direction. The cover tape is hand-tearable along each linear depression. Also, assemblies and methods for making cover tapes are provided.

Abstract translation: 提供用于将电子部件固定在载带上的覆盖带。 盖带包括沿垂直于横向方向的覆盖带的纵向方向延伸的相对边缘，以及第一和第二层。 第一层沿着纵向方向以第一拉伸比拉伸取向，并且第一层和第二层以大于第一拉伸比的第二拉伸比沿横向拉伸取向。 盖带还包括沿着纵向延伸并且在相对的边缘之间延伸的第一主表面，第一主表面包括沿着纵向方向延伸的多个线性凹陷。 盖带可沿着每个线性凹陷手工撕开。 另外，提供了制作盖带的组件和方法。