Patent US4405147A successfully refreshed from Google Patents.
US4421628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectangular target plate for cathode sputtering apparatus
Assignee: OC Oerlikon Balzers AG
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Filing: 1983-03-15
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Granted: 1983-12-20
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Expires: 2003-03-15
Abstract
Abstract A rectangular target plate for cathode sputtering apparatus has a groove which extends on the side of the surface to be sputtered, along a center line, and in the bottom of which recesses 5 are provided. By means of a thrust strip 6 inserted into the groove, the target plate can be secured to a cooled support, to obtain a satisfactory thermal contact. The depth of the groove is to ensure that the thrust strip does not protrude from the sputtering plane.
Inventors
- 👤 Hans Quaderer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:14
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/34; C23C14/3407; H; H01; H01J; H01J37/00; H01J37/32; H01J37/34
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
72 words
A target for cathode sputtering apparatus, comprising a rectangular plate having a surface to be sputtered with a longitudinally elongated groove therein, a plurality of recesses located in the groove at spaced locations and intended for securing purposes being located along a center line extending parallel to the longer side of said surface, the recesses being provided in the bottom of said groove and extending along the center line of said plate.
Claim 2
Dependent Claim
72 words
A target for cathode sputtering apparatus, comprising a rectangular plate having a surface to be sputtered with a longitudinally elongated groove therein, a plurality of recesses located in the groove at spaced locations and intended for securing purposes being located along a center line extending parallel to the longer side of said surface, the recesses being provided in the bottom of said groove and extending along the center line of said plate.
Claim 3
Dependent Claim
34 words
A target according to claim 1, including a thrust strip of a size to fit in said groove without protruding outwardly thereof adapted to be used for securing the target plate to a support.
References Cited (Backward Citations)
US4200510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |