Carbon nanotubes in carrier tape, cover tape and static shielding bags
US11878490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2021 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Oct 7, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A carrier tape, cover tape or static shielding bag for transportation of electronic components is constructed of polymers and carbon nanotubes being between 0.01% and 3% by weight. The carbon nanotubes may have any number of walls and any desired size of diameter dimension which is less than approximately 100 nm. The carrier tape, cover tape or bags including the carbon nanotubes have a static dissipative range measured between 1×105 and 1×1012 Ω/sq and a light transmittance value of between 60% and 90%. The carrier tape, cover tape or bags including the carbon nanotubes reduce surface defects, high density entanglements and agglomerations. The static shielding bags including the carbon nanotubes may be formed as sheets which are manufactured into a desired size of bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.