Method for making capacitor elements
US4756064A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1987 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Feb 11, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31797
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Capacitor elements having an ultra thin dielectric layer are made by the method of cutting a metal-deposited polyethylene terephthalate laminated film into a predetermined width, and then separating a metal-deposited polyethylene terephthalate film from the cut laminated film and successively forming the separated metal-deposited polyethylene terephthalate film into a coil. The metal-deposited polyethylene terephthalate laminated film is composed of an oriented ultra thin polyethylene terephthalate film having a thickness of 0.2 to 2.0 .mu.m, on one surface of which a metal layer is formed by vacuum deposition and on the other surface of which a propylene copolymer support film is bonded with an adhesive force of 0.1 to 2.0 g/cm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.