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:
Jul. 18, 2000
Filed:
Dec. 29, 1998
Hitoyoshi Kurata, Chiba, JP;
TDK Corporation, Tokyo, JP;
Abstract
For patterning a magnetic garnet layer formed on the surface of a non-magnetic garnet substrate, the magnetic garnet layer, an intermediate layer and a resist layer are formed in this order from the substrate side, the intermediate layer and the resist layer are shaped in the state of an island, and then the magnetic garnet layer is etched in a hot phosphoric acid solution, the intermediate layer being composed of a material which is more soluble in the hot phosphoric acid solution than the resist layer so that the etched magnetic garnet layer side face is formed as a gently inclined face and that a conductor pattern extending on both the non-magnetic garnet substrate and magnetic garnet layer surfaces can be formed without breaking, or a protective resist layer being formed on the reverse surface of the substrate so that the application angle of a magnetic field to the magnetic garnet layer surface can be accurately controlled.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile