Patent US4924205A successfully refreshed from Google Patents.
US4924205A
Expired / Lapsed
US
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Chip resistor and method of manufacturing a chip resistor
Assignee: Phycomp Holding BV
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Filing: 1989-01-10
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Granted: 1990-05-08
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Expires: 2009-01-10
Abstract
Abstract A chip resistor comprising a cuboid resistor body of a ceramic material and solderable, metal, current-supply strips at a first pair of opposing side faces of the resistor body, can readily and accurately be manufactured in that a second pair of opposing side faces of the resistor body is covered completely with electrically insulating layers and in that the metal strips around the edges of the resistor body in such a way that the electrically insulating layers are partly covered by the metal strips.
Inventors
- 👤 Didier Y. F. Caporali
- 👤 Frans L. A. Geernickx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:18
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/006; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
72 words
A chip resistor comprising of cuboid ceramic resistor body, electrically insulating layers completely covering a first pair of opposing side faces of said resistor body, and metal current-supply strips provided on a second pair of opposing side faces of said resistor body and extending over the edges of said first pair of opposing side faces covered with layers of said electrically insulating layers so as to partially cover said electrically insulating layers.
Claim 2
Dependent Claim
72 words
A chip resistor comprising of cuboid ceramic resistor body, electrically insulating layers completely covering a first pair of opposing side faces of said resistor body, and metal current-supply strips provided on a second pair of opposing side faces of said resistor body and extending over the edges of said first pair of opposing side faces covered with layers of said electrically insulating layers so as to partially cover said electrically insulating layers.
Claim 3
Independent Claim
119 words
A method of manufacturing a chip resistor in which a cuboid resistor body is provided on two opposing side faces with metal current-supply strips, said method comprising the steps: (a) providing both surfaces of a plate of a ceramic resistance body with electrically insulating layers, (b) dividing said plate into first strips, (c) immersing said strips into a composition capable of providing solderable metal strips on said first strips in a manner such that said metal strips are provided on the large uninsulated sides of the strips while extending over the edges of said electrically insulating layers so as to partially cover said electrically insulating layers, and (d) dividing said strips, provided with the solderable metal layers, into cuboids.
Claim 4
Independent Claim
119 words
A method of manufacturing a chip resistor in which a cuboid resistor body is provided on two opposing side faces with metal current-supply strips, said method comprising the steps: (a) providing both surfaces of a plate of a ceramic resistance body with electrically insulating layers, (b) dividing said plate into first strips, (c) immersing said strips into a composition capable of providing solderable metal strips on said first strips in a manner such that said metal strips are provided on the large uninsulated sides of the strips while extending over the edges of said electrically insulating layers so as to partially cover said electrically insulating layers, and (d) dividing said strips, provided with the solderable metal layers, into cuboids.
Claim 5
Dependent Claim
19 words
A chip resistor as claimed in claim 1, wherein the electrically insulating layers are made of a ceramic material.
Claim 6
Dependent Claim
27 words
A method as claimed in claim 2, wherein lines of fracture are provided on the surface of the plate after the electrically insulating layers have been applied.
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) | 1993-05-07 | 1993-11-06 | 1994-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-07 | 1997-11-06 | 1998-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-07 | 2001-11-06 | 2002-05-08 | $7700.00 | Window Closed / Lapsed |