Patent US4985370A successfully refreshed from Google Patents.
US4985370A
Expired / Lapsed
US
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Method of manufacturing semiconductor laser device
Assignee: Uniphase Opto Holdings Inc
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Filing: 1989-12-13
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Granted: 1991-01-15
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Expires: 2009-12-13
Abstract
Abstract The invention relates a method of manufacturing a semiconductor laser device having a coating on surfaces of a semiconductor body intended for emanation of a laser beam.
Inventors
- 👤 Johannes J. Ponjee
- 👤 Rudolf P. Tijburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:54
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/30; H10; H10H; H10H20/00; H10H20/80; H10H20/84; H01S5/02; H01S5/028; H01S5/0282; H01S5/0283; H10W; H10W72/00; H10W72/01; H10W72/015; H10W72/01515; H10W72/071; H10W72/075; H10W72/50; H10W72/531; H10W72/536; Y; Y10; Y10S; Y10S148/00; Y10S148/095; Y10S148/125
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
103 words
A method of manufacturing a semiconductor laser device comprising coating surfaces of a semiconductor body for emanating a laser beam with a layer of an alkyl compound obtained by conversion of groups at the surfaces with a compound chosen from the group comprising silanes, said silanes being substituted with at least one alkyl group, and said at least one alkyl group being substituted with at least one fluorine atom, and carbonic acids with an alkyl group having at least seven carbon atoms, characterized in that the surfaces on which the layer of the alkyl compound is formed are subjected to a cleaning treatment.
Claim 2
Independent Claim
103 words
A method of manufacturing a semiconductor laser device comprising coating surfaces of a semiconductor body for emanating a laser beam with a layer of an alkyl compound obtained by conversion of groups at the surfaces with a compound chosen from the group comprising silanes, said silanes being substituted with at least one alkyl group, and said at least one alkyl group being substituted with at least one fluorine atom, and carbonic acids with an alkyl group having at least seven carbon atoms, characterized in that the surfaces on which the layer of the alkyl compound is formed are subjected to a cleaning treatment.
Claim 3
Dependent Claim
24 words
A method as claimed in claim 1, characterized in that as cleaning treatment a treatment with ozone is used under irradiation with ultraviolet radiation.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-14 | 1994-07-16 | 1995-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-14 | 1998-07-16 | 1999-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-14 | 2002-07-16 | 2003-01-15 | $7700.00 | Window Closed / Lapsed |