US6617192B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically programmable memory element with multi-regioned contact
Assignee: Ovonyx Memory Technology LLC
•
Filing: 2000-10-03
•
Granted: 2003-09-09
•
Expires: 2020-10-03
Abstract
Abstract An electrically operated memory element having a contact in electrical communication with a memory material programmable to at least a first resistance state and a second resistance state. Preferably, the contact includes at least a first region having a first resistivity and a second region having a second resistivity greater than the first resistivity where the more resistive region is adjacent to the memory material.
Inventors
- 👤 Tyler Lowrey
- 👤 Stephen J. Hudgens
- 👤 Patrick J. Klersy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:36
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/56; G11C11/5678; H; H10; H10B; H10B63/00; H10B63/80; H10B63/82; 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; G11C13/00; G11C13/0002; G11C13/0004
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
85 words
A method of making an electrically programmable memory element, comprising the steps of: providing a contact material; altering the resistivity of a portion of said contact material so that said contact material includes at least a first region having a first resistivity and a second region having a second resistivity greater than said first resistivity; and introducing a memory material in electrical communication with said contact material, said second region being proximate to said memory material, said first region being distant from said memory material.
Claim 2
Independent Claim
85 words
A method of making an electrically programmable memory element, comprising the steps of: providing a contact material; altering the resistivity of a portion of said contact material so that said contact material includes at least a first region having a first resistivity and a second region having a second resistivity greater than said first resistivity; and introducing a memory material in electrical communication with said contact material, said second region being proximate to said memory material, said first region being distant from said memory material.
Claim 3
Dependent Claim
16 words
The method of claim 1 , wherein said altering step increases the resistivity of said portion.
Claim 4
Dependent Claim
17 words
The method of claim 1 , wherein said altering step includes the step of doping said portion.
Claim 5
Dependent Claim
19 words
The method of claim 1 , wherein said altering step includes the step of implanting ions into said portion.
Claim 6
Dependent Claim
20 words
The method of claim 1 , wherein said portion includes at least a part of an edge of said contact.
Claim 7
Dependent Claim
15 words
The method of claim 1 , wherein said second region is adjacent said memory material.
Claim 8
Dependent Claim
24 words
The method of claim 1 , wherein said memory material is programmable to at least a first resistance state and a second resistance state.
Claim 9
Dependent Claim
15 words
The method of claim 1 , wherein said memory material is a phase change material.
Claim 10
Dependent Claim
13 words
The method of claim 1 , wherein said memory material includes a chalogen.
Claim 11
Dependent Claim
15 words
The method of claim 1 , wherein said contact a material is a conductive material.
Claim 12
Dependent Claim
14 words
The method of claim 1 , wherein said second region is said altered portion.
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) | 2006-09-08 | 2007-03-10 | 2007-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-09-08 | 2011-03-10 | 2011-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-09-08 | 2015-03-10 | 2015-09-09 | $7700.00 | Window Closed / Lapsed |