The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2021
Filed:
Sep. 19, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/584 (2006.01); C04B 35/587 (2006.01); C04B 35/634 (2006.01); C04B 35/626 (2006.01); C04B 35/64 (2006.01); C04B 35/63 (2006.01);
U.S. Cl.
CPC ...
C04B 35/584 (2013.01); C04B 35/6261 (2013.01); C04B 35/6264 (2013.01); C04B 35/6303 (2013.01); C04B 35/63424 (2013.01); C04B 35/63456 (2013.01); C04B 35/63488 (2013.01); C04B 35/64 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3878 (2013.01); C04B 2235/3882 (2013.01); C04B 2235/5409 (2013.01); C04B 2235/6025 (2013.01); C04B 2235/656 (2013.01); C04B 2235/658 (2013.01);
Abstract
A tape casting slurry composition for preparing a silicon nitride sintered body is provided. The tape casting slurry composition exhibits a viscosity suitable for tape casting, and thus, can easily control the area and thickness of the prepared green sheet, thereby preparing a large area silicon nitride sintered body having a thickness of a circuit board without post-processing processes such as grinding, and the like. Therefore, according to the present invention, a silicon nitride sintered body can be prepared using low cost raw materials by a simplified process, thereby securing efficiency and economic feasibility of the preparation process.