Cover tape for packaging
US6027802A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1997 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Oct 23, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2852
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cover tape adapted to seal individual components in respective recesses of a carrier tape or a two dimensional carrier tray, including a randomly embossed layer, an adhesive layer covered over one side of the randomly embossed layer, and a non-adhesive layer adhered to the adhesive layer to prevent the components from adhering to the adhesive layer, the randomly embossed layer including an adhesion portion adapted for fastening to the carrier tape through the adhesive layer, a torn strip portion adapted to enhance the cohesive strength of the randomly embossed layer through the non-adhesive layer, and a stress concentration zone disposed between the contact border line of the adhesion portion and the contact border line of the non-adhesive layer, the torn strip portion being peeled off from the adhesion portion along the stress concentration zone before the removal of the encased components from the carrier tape, the applied tearing force to peel off the torn strip portion from the adhesion portion along the stress concentration zone being smaller than the adhesion force existing between the adhesion portion of the randomly embossed layer and the carrier tape through the adhesive…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.