US5777540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulated fuse having a conductive polymer and non-cured deoxidant
Assignee: CTS Corp
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Filing: 1996-01-29
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Granted: 1998-07-07
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Expires: 2016-01-29
Abstract
Abstract A simplified method of manufacturing an electrothermal fuse includes the steps of screening conductive epoxy onto fuse link termination pads, placing a metal alloy fuse link into the conductive epoxy on the termination pads, curing the conductive epoxy, applying deoxidant, applying encapsulant, and curing the encapsulant. The resultant fuse of the preferred embodiment comprises a substrate, termination pads, conductive epoxy interconnects, a solder type fuse link, liquid deoxidant and encapsulant.
Inventors
- 👤 Ronald J. Dedert
- 👤 Steven J. Hreha
- 👤 William A. Hollinger, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:32
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/046; H01H85/05; H01H85/143; H01H69/00; H01H69/02; H01H69/022; H01H85/0411; H01H85/055; H01H85/06; H01H85/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
49 words
An electrothermal fusing circuit comprising: two terminations; a meltable fuse link extending between said two terminations; a conductive polymer interconnecting said two terminations to said meltable fuse link; a non-cured deoxidant protecting said fuse link from oxidation; an encapsulant, said encapsulant encapsulating said fuse link and said non-cured deoxidant.
Claim 2
Dependent Claim
49 words
An electrothermal fusing circuit comprising: two terminations; a meltable fuse link extending between said two terminations; a conductive polymer interconnecting said two terminations to said meltable fuse link; a non-cured deoxidant protecting said fuse link from oxidation; an encapsulant, said encapsulant encapsulating said fuse link and said non-cured deoxidant.
Claim 3
Dependent Claim
20 words
The electrothermal fuse of claim 1 further comprising peripheral electrical devices, said peripheral electrical devices also encapsulated by said encapsulant.
Claim 4
Dependent Claim
18 words
The electrothermal fusing circuit of claim 1 wherein said meltable fuse link is comprised by a solder alloy.
Claim 5
Dependent Claim
15 words
The electrothermal fusing circuit of claim 3 wherein said solder alloy is a tin-lead eutectic.
Claim 6
Dependent Claim
17 words
The electrothermal fusing circuit of claim 1 wherein said conductive polymer is comprised by a silver-filled epoxy.
Claim 7
Dependent Claim
14 words
The electrothermal fusing circuit of claim 1 wherein said non-cured deoxidant is a liquid.
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) | 2001-07-06 | 2002-01-05 | 2002-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-06 | 2006-01-05 | 2006-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-06 | 2010-01-05 | 2010-07-07 | $7700.00 | Window Closed / Lapsed |