Patent US6621095B2 successfully refreshed from Google Patents.
US6621095B2
Expired / Lapsed
US
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Method to enhance performance of thermal resistor device
Assignee: Samsung Electronics Co Ltd
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Filing: 2001-08-29
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Granted: 2003-09-16
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Expires: 2021-08-29
Abstract
Abstract An apparatus including a contact on a substrate, a dielectric material overlying the contact, a phase change element overlying the dielectric material on a substrate, and a heater element disposed in the dielectric material and coupled to the contact and the phase change element, wherein a portion of the dielectric material comprises a thermal conductivity less than silicon dioxide. A method including introducing over a contact formed on a substrate, a dielectric material, a portion of which comprises a thermal conductivity less than silicon dioxide, introducing a heater element through the dielectric material to the contact, and introducing a phase change material over the dielectric material and the heater element.
Inventors
- 👤 Chien Chiang
- 👤 Guy C. Wicker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:44
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/0002; G11C13/0004; H; H10; H10B; H10B63/00; H10B63/20; H10N; H10N70/00; H10N70/011; H10N70/20; H10N70/231; H10N70/801; H10N70/821; H10N70/826; H10N70/841; H10N70/8413; H10N70/881; H10N70/882; H10N70/8828
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
56 words
An apparatus comprising: a phase change element; an electrical contact directly contacting the phase change element; and a dielectric material surrounding said contact, said dielectric material having a thermal conductivity less than the thermal conductivity of silicon dioxide, said dielectric material and said contact contact the phase change element along the same surface of said element.
Claim 2
Independent Claim
56 words
An apparatus comprising: a phase change element; an electrical contact directly contacting the phase change element; and a dielectric material surrounding said contact, said dielectric material having a thermal conductivity less than the thermal conductivity of silicon dioxide, said dielectric material and said contact contact the phase change element along the same surface of said element.
Claim 3
Dependent Claim
13 words
The apparatus of claim 1 wherein said phase change element includes a chalcogenide.
Claim 4
Dependent Claim
11 words
The apparatus of claim 1 wherein said contact is cup shaped.
Claim 5
Dependent Claim
25 words
The apparatus of claim 1 wherein the dielectric material has a thermal conductivity that is at least three times less than that of silicon dioxide.
Claim 6
Independent Claim
55 words
An apparatus comprising: a phase change material; a heater, arranged in electrical communication with said phase change material; and a dielectric material around said heater, said dielectric material having a thermal conductivity less than the thermal conductivity of silicon dioxide, said dielectric material and said heater contact said phase change material along a common surface.
Claim 7
Independent Claim
55 words
An apparatus comprising: a phase change material; a heater, arranged in electrical communication with said phase change material; and a dielectric material around said heater, said dielectric material having a thermal conductivity less than the thermal conductivity of silicon dioxide, said dielectric material and said heater contact said phase change material along a common surface.
Claim 8
Dependent Claim
14 words
The apparatus of claim 5 wherein said heater directly contacts said phase change element.
Claim 9
Dependent Claim
12 words
The apparatus of claim 5 wherein said phase change material includes chalcogenide.
Claim 10
Dependent Claim
11 words
The apparatus of claim 5 wherein said heater is cup shaped.
Claim 11
Dependent Claim
25 words
The apparatus of claim 5 wherein said dielectric material has a thermal conductivity that is at least three times less than that of silicon dioxide.
Claim 12
Independent Claim
60 words
An apparatus comprising: a phase change element; an electrical heater directly contacting the phase change element and in electrical communication with said phase change element; and a dielectric material around said heater, said dielectric material having a thermal conductivity less than that of silicon dioxide, said dielectric material and said heater contact the phase change element along a common surface.
Claim 13
Independent Claim
60 words
An apparatus comprising: a phase change element; an electrical heater directly contacting the phase change element and in electrical communication with said phase change element; and a dielectric material around said heater, said dielectric material having a thermal conductivity less than that of silicon dioxide, said dielectric material and said heater contact the phase change element along a common surface.
Claim 14
Dependent Claim
13 words
The apparatus of claim 10 wherein said phase change element includes a chalcogenide.
Claim 15
Dependent Claim
11 words
The apparatus of claim 10 wherein said heater is cup shaped.
Claim 16
Dependent Claim
25 words
The apparatus of claim 10 wherein said dielectric material has a thermal conductivity that is at least three times less than that of silicon dioxide.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-09-15 | 2007-03-17 | 2007-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-09-15 | 2011-03-17 | 2011-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-09-15 | 2015-03-17 | 2015-09-16 | $7700.00 | Window Closed / Lapsed |