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:
Feb. 16, 1999
Filed:
Aug. 26, 1996
Yoshihisa Fujii, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A method for producing a semiconductor laser device includes the steps of: forming a reflection protective film on a light-emitting facet of a semiconductor laser device; and removing an unwanted reflection protective film formed on a portion other than the light-emitting facet by an etching technique. Furthermore, an apparatus for producing a semiconductor laser device, includes: a formation section forming a reflection protective film on a light-emitting facet of a semiconductor laser device; an etching section removing an unwanted reflection protective film formed on a portion other than the light-emitting facet by an etching technique; a device inverting section turning the semiconductor laser device upside down; and a device transferring section transferring the semiconductor laser device among the formation section, the etching section, and the device inverting section in a predetermined order.