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. 14, 1994
Filed:
Aug. 04, 1992
Carmine Vittoria, Newton, MA (US);
Northeastern University, Boston, MA (US);
Abstract
A method is provided for fabricating a thin film of ferrite material upon a variety of substrates wherein pulsed high power laser light impinges upon a target of ferrite material causing localized vaporization of the ferrite material and subsequent deposition upon a proximate substrate. The rapidity with which the target material is vaporized promotes chemical stability during ferrite film growth. Both the target and the substrate are maintained inside a vacuum chamber, and are maintained substantially within a temperature range of 550.degree.-900.degree. C. The equipment needed to practice the method is relatively inexpensive. Furthermore, the method allows for the large-scale production of high quality ferrite films with preferential magnetic texture, wherein the magnetization of the ferrite material aligns in a preferred direction in the plane of the film.