Polybenzoxazole precursor and application thereof
US11976170B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jul 5, 2022 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Jul 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L23/5329
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a polybenzoxazole precursor, which comprises a structure of formula (I):wherein the definitions of Y, Z, R1, i, j, and V are provided herein. By means of the polybenzoxazole precursor, the resin composition of the present invention is able to form a film with high frequency characteristics and high contrast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.