US6498715B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stack up type low capacitance overvoltage protective device
Assignee: Inpaq Technology Co Ltd
•
Filing: 2001-05-15
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Granted: 2002-12-24
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Expires: 2021-05-15
Abstract
Abstract Stack up type low capacitance overvoltage protective device is composed of a substrate; a conductive low electrode layer formed on the substrate; a voltage sensitive material layer formed on the conductive lower electrode layer; and a conductive upper electrode layer formed on the voltage sensitive material layer.
Inventors
- 👤 Chun-yuan Lee
- 👤 Kang-neng Hsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:53
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/10; H01C7/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
61 words
Stack up type low capacitance overvoltage protective device comprising: a substrate; a conductive lower electrode layer formed on said substrate; a voltage sensitive material layer formed on said conductive lower electrode layer; a low dielectric material layer having a reserved connection hole formed on said voltage sensitive material layer; and a conductive upper electrode layer formed on said voltage sensitive material.
Claim 2
Dependent Claim
61 words
Stack up type low capacitance overvoltage protective device comprising: a substrate; a conductive lower electrode layer formed on said substrate; a voltage sensitive material layer formed on said conductive lower electrode layer; a low dielectric material layer having a reserved connection hole formed on said voltage sensitive material layer; and a conductive upper electrode layer formed on said voltage sensitive material.
Claim 3
Dependent Claim
23 words
The overvoltage protective device of claim 1 , wherein a thickness of said voltage sensitive material layer is 3 μm to 150 μm.
Claim 4
Dependent Claim
20 words
The overvoltage protective device of claim 1 , wherein the material used for said low dielectric material layer is glass.
Claim 5
Dependent Claim
20 words
The overvoltage protective device of claim 1 , wherein the material used for said low dielectric material layer is ceramic.
Claim 6
Dependent Claim
22 words
The overvoltage protective device of claim 1 , wherein the material used for said low dielectric material layer is high molecule material.
References Cited (Backward Citations)
US5311053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-12-23 | 2006-06-24 | 2006-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-12-23 | 2010-06-24 | 2010-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-12-23 | 2014-06-24 | 2014-12-24 | $7700.00 | Window Closed / Lapsed |