Claims
- 1. A fine gold alloy wire for use in the bonding of semi-conductor elements characterized by having high tensile strength and consisting essentially of from 0.0003 to less than 0.01 wt % of at least one rare earth element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Lu, Sc and Y with the balance being Au and incidental impurities.
- 2. The fine gold alloy wire of claim 1 wherein said rare earth element is La.
- 3. The fine gold alloy wire of claim 1 wherein said rare earth element is Ce.
- 4. The fine gold alloy wire of claim 1 wherein said rare earth element is Pr.
- 5. The fine gold alloy wire of claim 1 wherein said rare earth element is Nd.
- 6. The fine gold alloy wire of claim 1 wherein said rare earth element is Sm.
- 7. The fine gold alloy wire of claim 1 wherein said rare earth elements are La and Ce.
- 8. The fine gold alloy wire of claim 1 wherein said rare earth elements are La and Pr.
- 9. The fine gold alloy wire of claim 1 wherein said rare earth elements are Pr and Sm.
- 10. The fine gold alloy wire of claim 1 wherein said rare earth elements are Ce, Pr, La and Nd.
- 11. The fine gold alloy wire of claim 1 wherein said rare earth element is La and wherein said additional elements are Ge and Be.
- 12. The fine gold alloy wire of claim 1 wherein said rare earth element is La and wherein said additional elements are Be and Ca.
- 13. The fine gold alloy wire of claim 1 wherein said rare earth element is La and wherein said additional elements are Ge and Ca.
- 14. The fine gold alloy wire of claim 1 wherein said rare earth element is La and wherein said additional elements are Ge, Be and Ca.
- 15. The fine gold alloy wire of claim 1 wherein said rare earth element is Ce and wherein said additional elements are Ge and Be.
- 16. The fine gold alloy wire of claim 1 wherein said rare earth element is Ce and wherein said additional elements are Be and Ca.
- 17. The fine gold alloy wire of claim 1 wherein said rare earth element is Ce and wherein said additional elements are Ge and Ca.
- 18. The fine gold alloy wire of claim 1 wherein said rare earth element is Ce and wherein said additional elements are Ge, Be and Ca.
- 19. The fine gold alloy wire of claim 1 wherein said rare earth element is Pr and wherein said additional elements are Ge and Be.
- 20. The fine gold alloy wire of claim 1 wherein said rare earth element is Pr and wherein said additional elements are Be and Ca.
- 21. The fine gold alloy wire of claim 1 wherein said rare earth element is Pr and wherein said additional elements are Ge and Ca.
- 22. The fine gold alloy wire of claim 1 wherein said rare earth element is Pr and wherein said additional elements are Ge Be and Ca.
- 23. The fine gold alloy wire of claim 1 wherein said rare earth element is Nd and wherein said additional elements are Ge and Be.
- 24. The fine gold alloy wire of claim 1 wherein said rare earth element is Nd and wherein said additional elements are Be and Ca.
- 25. The fine gold alloy wire of claim 1 wherein said rare earth element is Nd and wherein said additional elements are Ge and Ca.
- 26. The fine gold alloy wire of claim 1 wherein said rare earth element is Nd and wherein said additional elements are Ge, Be and Ca.
- 27. The fine gold alloy wire of claim 1 wherein said rare earth element is Sm and wherein said additional elements are Ge and Be.
- 28. The fine gold alloy wire of claim 1 wherein said rare earth element is Sm and wherein said additional elements are Be and Ca.
- 29. The fine gold alloy wire of claim 1 wherein said rare earth element is Sm and wherein said additional elements are Ge and Ca.
- 30. The fine gold alloy wire of claim 1 wherein said rare earth element is Sm and wherein said additional elements are Ge Be and Ca.
- 31. The fine gold alloy wire of claim 1 wherein said rare earth elements are La and Nd.
- 32. The fine gold alloy wire of claim 1 wherein said rare earth elements are La and Sm.
- 33. The fine gold alloy wire of claim 1 wherein said rare earth elements are Ce and Pr.
- 34. The fine gold alloy wire of claim 1 wherein said rare earth elements are Ce and Nd.
- 35. The fine gold alloy wire of claim 1 wherein said rare earth elements are Ce and Sm.
- 36. The fine gold alloy wire of claim 1 wherein said rare earth elements are Pr and Nd.
- 37. The fine gold alloy wire of claim 1 wherein said rare earth elements are Pr and Sm.
- 38. The fine gold alloy wire of claim 1 wherein said rare earth elements are Nd and Sm.
- 39. The fine gold alloy wire of claim 1 wherein said rare earth elements are La, Ce, Pr, Nd and Sm.
- 40. A fine gold alloy wire for use in the bonding of semi-conductor elements characterized by having high tensile strength and consisting essentially of 0.0003 to less than 0.001 wt % of at least one rare earth element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Lu, Sc and Y and 0.001 to 0.006 wt. % of at least one additional element selected from the group consisting of Ge, Be and Ca, with the balance being Au and incidental impurities.
- 41. The fine gold alloy wire of claim 40 which contains Ge as said additional element.
- 42. The fine gold alloy wire of claim 40 which contains Be as said additional element.
- 43. The fine gold alloy wire of claim 40 which contains Ca as said additional element.
- 44. The fine gold alloy wire of claim 40 which contains Ge and Be as said additional elements.
- 45. The fine gold alloy wire of claim 40 which contains Ge and Ca as said additional elements.
- 46. The fine gold alloy wire of claim 40 which contains Ca and Be as said additional elements.
- 47. The fine gold alloy wire of claim 40 which contains Ge, Be and Ca as said additional elements.
- 48. The fine gold alloy wire of claim 40 wherein said rare earth element is La.
- 49. The fine gold alloy wire of claim 40 wherein said rare earth element is Ce.
- 50. The fine gold alloy wire of claim 40 wherein said rare earth element is Pr.
- 51. The fine gold alloy wire of claim 40 wherein said rare earth element is Nd.
- 52. The fine gold alloy wire of claim 40 wherein said rare earth element is Sm.
- 53. The fine gold alloy wire of claim 40 wherein said rare earth elements are La and Ce.
- 54. The fine gold alloy wire of claim 40 wherein said rare earth elements are La and Pr.
- 55. The fine gold alloy wire of claim 40 wherein said rare earth elements are Pr and Sm.
- 56. The fine gold alloy wire of claim 40 wherein said rare earth elements are Ce, Pr, La and Nd.
- 57. A fine gold alloy wire for use in the bonding of semi-conductor elements characterized by having high tensile strength and consisting essentially of from 0.0003 to less than 0.01 wt % of Yb, with the balance being Au and incidental impurities.
- 58. A fine gold alloy wire for use in the bonding of semi-conductor elements characterized by having high tensile strength and consisting essentially of 0.0003 to less than 0.001 wt % of Yb, and 0.001 to 0.006 wt. % of at least one additional element selected from the group consisting of Ge, Be and Ca, with the balance being Au and incidental impurities.
Priority Claims (2)
Number |
Date |
Country |
Kind |
56-195299 |
Dec 1981 |
JPX |
|
57-37580 |
Mar 1982 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 07/296,350 filed Jan. 9, 1989, now U.S. Pat. No. 4,885,135 which is a continuation of Ser. No. 06/825,942 filed Feb. 3, 1986 (abandoned); which is a continuation of Ser. No. 06/586,642 filed Mar. 7, 1984 (abandoned); which is a CIP of Ser. No. 06/419,840 filed Sept. 20, 1982 (abandoned).
US Referenced Citations (9)
Foreign Referenced Citations (10)
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1608161 |
Sep 1970 |
DEX |
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Mar 1979 |
DEX |
105968 |
Sep 1978 |
JPX |
112060 |
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13740 |
Feb 1981 |
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JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
296350 |
Jan 1989 |
|
Continuations (2)
|
Number |
Date |
Country |
Parent |
825942 |
Feb 1986 |
|
Parent |
586642 |
Mar 1984 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
419840 |
Sep 1982 |
|