Polymers of maleimide and cycloolefinic monomers as permanent dielectric materials
US9932432B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 6, 2016 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | May 6, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2261/3325
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Various cycloolefinic/maleic anhydride/maleimide polymers and compositions thereof useful for forming self-imageable films encompassing such polymers are disclosed. Such polymers encompass norbornene-type repeating units, maleimide repeat units and maleic anhydride-type repeating units where at least some of such maleic anhydride-type repeating units have been ring-opened. The films formed from such polymer compositions provide self imageable, low-k, thermally stable layers for use in microelectronic and optoelectronic devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.