Process of producing copper-alloy and copper alloy plate used for making electrical or electronic parts

Claim 1

Copper-nickel alloys for electrical lead conductor materials for integrated circuits consisting essentially of copper and from about 0.05 to 3.0% by weight nickel, from about 0.01 to 1.0% by weight silicon, and from about 0.01 to 0.1% by weight phosphorus.

Claim 4

A method for producing an alloy consisting essentially of copper and from about 0.05 to about 3.0% by weight nickel, from about 0.01 to about 1.0% by weight silicon, from about 0.01 to about 0.1% by weight phosphorus, and optionally 0.01 to 3.0% iron for electrical lead conductor materials integrated circuits comprising as sequential steps: (a) casting the composites of claims 1 or 2; (b) hot rolling the casting at a temperature of between about 750° to 950° C.; (c) rapidly cooling the rolled casting; (d) cold rolling the casting with a reduction in size of about 60 to 80%; (e) annealing the casting at a temperature of between about 400° C. to 520° C. for about two hours; (f) rapidly cooling the resulting product; (g) again cold rolling the resulting product with a reduction in size of about 50 to 70%; (h) annealing the resulting product at a temperature of between about 400° C., to 520° C. for about two hours; (i) rapidly cooling the resulting product; (j) finally cold rolling the casting with a size reduction of about 50 to 70%; (k) low temperature annealing the resulting product at a temperature of between about 250° C. to 400° C.

Claim 5

A method for producing an alloy consisting essentially of copper and from about 0.05 to about 3.0% by weight nickel, from about 0.01 to about 1.0% by weight silicon, from about 0.01 to about 0.1% by weight phosphorus, and optionally 0.01 to 3.0% iron for electrical lead conductor materials for integrated circuits comprising as sequential steps: (a) casting the alloys of claims 1 or 2; (b) the alloy is hot rolled at a temperature of between 750° to 950° C. and rapidly cooled; (c) wherein said alloy is first cold rolled with a size reduction of about 60 to 80%; (d) said alloy is then annealed at a temperature of between about 400° C. to 520° C. for about two hours and rapidly cooled; (e) said alloy is secondly cold rolled with a size reduction of about 50 to 70%; (f) said alloy is annealed at a temperature of between about 400° C. to 520° C. for about two hours and rapidly cooled; (g) said alloy is cold rolled with a reduction of about 30 to 50%; (h) said alloy is annealed at a temperature of between about 350° C. to 500° C. for about two hours; (i) said alloy is finally rolled with a reduction in size of between about 10 to 25%; (j) said alloy is low temperature annealed at a temperature of between about 250° C. to 400° C.