Green sheet coating material, green sheet, production method of green sheet and production method of electronic device
US7666268B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2004 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Jun 10, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/704
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A coating material, green sheet and the method capable of producing a green sheet without a pin hole, having enough strength to be peeled from a support body and excellent surface smoothness even when the green sheet is extremely thin, and being suitable to make an electronic device thin and multilayered, are provided. The present invention provides a green sheet coating material comprising a ceramic powder, a binder resin including a butyral based resin as a main component thereof, and a solvent. The solvent includes a first solvent having an SP value as a solubility parameter of 10 or larger and a second solvent having the SP value of 8 or larger but smaller than 10. The second solvent is included by 20 to 60 wt % and, preferably, 25 to 60 wt % with respect to 100 wt % of the solvent as the entire weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.