US3347771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead-tin alloy plating fixture for silicon
Assignee: Bendix Corp
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Filing: 1965-01-25
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Granted: 1967-10-17
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Expires: 1985-01-25
Abstract
No abstract record available.
Inventors
- 👤 Reznick Frank Joseph
- 👤 James A Noddings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:09
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/06; C25D17/08; C25D7/00; C25D7/12; H; H10; H10P; H10P14/00; H10P14/40; H10P14/46; H10P14/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A FIXTURE FOR HOLDING SEMICONDUCTOR WAFERS FOR PLATING COMPRISING A MULTISIDED FRAME GENERALLY DEFINING A PLANE, SAID FRAME BEING OF A MATERIAL HAVING GOOD ELECTRICAL CONDUCTIVITY, A PLURALITY OF GROUPS OF AXIALLY PARALLEL RESILIENT CONTROL WIRES SECURED TO SAID FRAME AND GENERALLY PERPENDICULAR TO SAID PLANE, SAID GROUPS INCLUDING THREE WIRES PROVIDING A THREE-POINT CONTACT FOR SUPPORTING EACH WAFER SUBSTANTIALLY AXIALLY PARALLEL TO SAID FRAME, INSULATING MEANS FOR INSULATING SAID FRAME AND A PORTION OF SAID CONTACT WIRES, AND MEANS FOR CONNECTING SAID FRAME TO THE NEGATIVE OF A SOURCE OF ELECTRICAL CURRENT.
Claim 2
Dependent Claim
93 words
A FIXTURE FOR HOLDING SEMICONDUCTOR WAFERS FOR PLATING COMPRISING A MULTISIDED FRAME GENERALLY DEFINING A PLANE, SAID FRAME BEING OF A MATERIAL HAVING GOOD ELECTRICAL CONDUCTIVITY, A PLURALITY OF GROUPS OF AXIALLY PARALLEL RESILIENT CONTROL WIRES SECURED TO SAID FRAME AND GENERALLY PERPENDICULAR TO SAID PLANE, SAID GROUPS INCLUDING THREE WIRES PROVIDING A THREE-POINT CONTACT FOR SUPPORTING EACH WAFER SUBSTANTIALLY AXIALLY PARALLEL TO SAID FRAME, INSULATING MEANS FOR INSULATING SAID FRAME AND A PORTION OF SAID CONTACT WIRES, AND MEANS FOR CONNECTING SAID FRAME TO THE NEGATIVE OF A SOURCE OF ELECTRICAL CURRENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |