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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0854552 (2004-05-26) |
등록번호 | US-8779596 (2014-07-15) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 1 인용 특허 : 412 |
Disclosed structures and methods inhibit atomic migration and related capacitive-resistive effects between a metallization layer and an insulator layer in a semiconductor structure. One exemplary structure includes an inhibiting layer between an insulator and a metallization layer. The insulator inc
Disclosed structures and methods inhibit atomic migration and related capacitive-resistive effects between a metallization layer and an insulator layer in a semiconductor structure. One exemplary structure includes an inhibiting layer between an insulator and a metallization layer. The insulator includes a polymer or an insulating oxide compound. And, the inhibiting layer has a compound formed from a reaction between the polymer or insulating oxide compound and a transition metal, a representative metal, or a metalloid.
1. A semiconductor structure comprising: an insulator layer having a first substance, wherein the first substance comprises an insulator oxide compound;an inhibiting layer above and on the insulator layer, the inhibiting layer contacting the insulator layer, wherein the inhibiting layer includes a s
1. A semiconductor structure comprising: an insulator layer having a first substance, wherein the first substance comprises an insulator oxide compound;an inhibiting layer above and on the insulator layer, the inhibiting layer contacting the insulator layer, wherein the inhibiting layer includes a second substance, wherein the second substance is selected from a group consisting of a transition metal, aluminum, and a representative metal, and wherein the inhibiting layer includes a compound formed by the first substance and the second substance so as to inhibit undesired atomic migration; anda copper metallization layer above and on the inhibiting layer, the copper metallization layer comprising a copper layer, the copper layer consisting essentially of copper, the copper metallization layer disposed directly above the insulator layer. 2. The semiconductor structure of claim 1, wherein the inhibiting layer includes a layer of aluminum with a thickness of about 5 Angstroms to about 40 Angstroms. 3. The semiconductor structure of claim 1, wherein the inhibiting layer includes a layer of aluminum with a thickness of about 20 Angstroms to about 30 Angstroms. 4. The semiconductor structure of claim 1, wherein the inhibiting layer includes a layer of aluminum with a thickness of about 20 Angstroms. 5. A semiconductor structure comprising: an insulator layer having a first substance including an aerogel;an inhibiting layer above and on the insulator layer, the inhibiting layer contacting the insulator layer, wherein the inhibiting layer includes a second substance, wherein the second substance is selected from a group consisting of a transition metal, aluminum, and a representative metal, and wherein the inhibiting layer includes a compound formed by the first substance and the second substance so as to inhibit undesired atomic migration; anda copper metallization layer above and on the inhibiting layer, the copper metallization layer comprising a copper layer, the copper layer consists essentially of copper, the copper layer consisting essentially of copper, the copper metallization layer disposed directly above the insulator layer. 6. The semiconductor structure of claim 5, wherein the inhibiting layer includes a layer of aluminum with a thickness of about 5 Angstroms to about 40 Angstroms. 7. The semiconductor structure of claim 5, wherein the inhibiting layer includes a layer of aluminum with a thickness of about 20 Angstroms to about 30 Angstroms. 8. The semiconductor structure of claim 5, wherein the inhibiting layer includes a layer of aluminum with a thickness of about 20 Angstroms. 9. The semiconductor structure of claim 1, wherein the insulator oxide compound includes silicon oxide. 10. The semiconductor structure of claim 1, wherein the insulator layer is disposed between and contacting two contacts. 11. The semiconductor structure of claim 10, wherein the two contacts include titanium silicide. 12. The semiconductor structure of claim 1, wherein the inhibiting layer includes an alkaline earth metal. 13. The semiconductor structure of claim 12, wherein the alkaline earth metal includes magnesium. 14. The semiconductor structure of claim 1, wherein the inhibiting layer includes hafnium. 15. The semiconductor structure of claim 5, wherein the insulator layer is disposed on a protective insulating layer, 16. The semiconductor structure of claim 15, wherein the protective insulating layer includes silicon nitride. 17. The semiconductor structure of claim 5, wherein the copper metallization layer is disposed above two contacts and separated from the two contacts by the inhibiting layer. 18. The semiconductor structure of claim 17, wherein the two contacts include tungsten. 19. The semiconductor structure of claim 5, wherein the inhibiting layer includes Zirconium. 20. The semiconductor structure of claim 5, wherein the inhibiting layer includes molybdenum.
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