US5227041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry contact electroplating apparatus
Assignee: Hewlett Packard Development Co LP
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Filing: 1992-06-12
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Granted: 1993-07-13
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Expires: 2012-06-12
Abstract
Abstract A dry contact electroplating structure is disclosed. The structure includes a base member for immersion within an electroplating solution. The base member has a central aperture defined by an aperture perimeter formed within the base member. A sealing ring is positioned adjacent to the aperture perimeter. The sealing ring forms a sealing connection with an object to be electroplated. A number of electrical contacts are positioned adjacent to the sealing ring. The electrical contacts form an electrical connection with one side of the object to be electroplated. A lid is positioned on the base member over one side of the central aperture. Thus, the lid protects the electrical contacts and one side of the object to be electroplated, while the other side of the object is exposed to the electroplating solution.
Inventors
- 👤 Bruce N. Brogden
- 👤 Leon P. Brown
- 👤 Syed A. Husain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:47
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0441; C; C25; C25D; C25D17/00; C25D17/001; C25D7/00; C25D7/12; H10P72/70; H10P72/76; H10P72/7604; H10P72/7624
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
145 words
An apparatus for facilitating the electroplating of an object, said apparatus comprising: a base member for immersion within an electroplating solution, said base member including: a central aperture defined by an aperture perimeter formed within said base member; a sealing ring positioned adjacent to said aperture perimeter, said sealing ring forming a sealing connection with the object to be electroplated, said object to be electroplated including a first side and a second side; and a plurality of pliantly mounted electrical contacts positioned adjacent to said sealing ring, said plurality of pliantly mounted electrical contacts forming electrical connections with said first side of said object to be electroplated; and a lid positioned on said base member over one side of said central aperture, said lid thereby protecting said plurality of electrical contacts and said second side of said object to be electroplated from said electroplating solution.
Claim 2
Independent Claim
145 words
An apparatus for facilitating the electroplating of an object, said apparatus comprising: a base member for immersion within an electroplating solution, said base member including: a central aperture defined by an aperture perimeter formed within said base member; a sealing ring positioned adjacent to said aperture perimeter, said sealing ring forming a sealing connection with the object to be electroplated, said object to be electroplated including a first side and a second side; and a plurality of pliantly mounted electrical contacts positioned adjacent to said sealing ring, said plurality of pliantly mounted electrical contacts forming electrical connections with said first side of said object to be electroplated; and a lid positioned on said base member over one side of said central aperture, said lid thereby protecting said plurality of electrical contacts and said second side of said object to be electroplated from said electroplating solution.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 wherein said base member is connected to a handle.
Claim 4
Dependent Claim
31 words
The apparatus of claim 1 wherein said apparatus further comprises a cushining ring for pliantly accepting said lid, said lid including a perimeter lip which is coupled to said cushioning ring.
Claim 5
Dependent Claim
42 words
The apparatus of claim 3 further comprising a clamp for coupling said lid to said base, said clamp including a plurality of posts for coupling to the outer perimeter of said base; and a lever for tightening said lid against said base.
Claim 6
Independent Claim
181 words
An apparatus for electroplating a high component density electrical device fabricated on a wafer having an outer perimeter, said apparatus comprising: a central member for immersion within an electroplating solution, said central member including: a handle; a frame connected to said handle; a central aperture defined by an aperture perimeter formed within said frame; a sealing ring positioned adjacent to said aperture perimeter, said sealing ring forming a sealing connection with the outer perimeter of the wafer to be electroplated, said wafer to be electroplated including a first side and a second side; and a plurality of electrical contacts pliantly mounted adjacent to said sealing ring, said plurality of electrical contacts forming electrical connections with said first side of said wafer to be electroplated; and a lid positioned on said central member over one side of said central aperture, said lid forcing said wafer against said plurality of electrical contacts and said sealing ring, said lid further protecting said second side of said wafer from said electroplating solution while said first side of said wafer is exposed to said electroplating solution.
Claim 7
Independent Claim
181 words
An apparatus for electroplating a high component density electrical device fabricated on a wafer having an outer perimeter, said apparatus comprising: a central member for immersion within an electroplating solution, said central member including: a handle; a frame connected to said handle; a central aperture defined by an aperture perimeter formed within said frame; a sealing ring positioned adjacent to said aperture perimeter, said sealing ring forming a sealing connection with the outer perimeter of the wafer to be electroplated, said wafer to be electroplated including a first side and a second side; and a plurality of electrical contacts pliantly mounted adjacent to said sealing ring, said plurality of electrical contacts forming electrical connections with said first side of said wafer to be electroplated; and a lid positioned on said central member over one side of said central aperture, said lid forcing said wafer against said plurality of electrical contacts and said sealing ring, said lid further protecting said second side of said wafer from said electroplating solution while said first side of said wafer is exposed to said electroplating solution.
Claim 8
Dependent Claim
21 words
The apparatus of claim 5 wherein each of said plurality of electrical contacts includes a tip for impinging upon said wafer.
Claim 9
Dependent Claim
21 words
The apparatus of claim 5 further comprising a clamp positioned over said lid for securely attaching said lid to said frame.
Claim 10
Dependent Claim
42 words
The apparatus of claim 7 further comprising a clamp for coupling said lid to said base, said clamp including a plurality of posts for coupling to the outer perimeter of said base; and a lever for tightening said lid against said base.
Claim 11
Dependent Claim
15 words
The apparatus of claim 8 further comprising a cushioning ring for pliantly accepting said lid.
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) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |