Method of manufacturing sheet material made of copper-silver alloy and method of manufaturing sheet for electrode of probe card
AssigneeSWCC Corporation
InventorsTsutomu Koizumi, Go Odachi, Ryuichi Arai
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Abstract
A method of manufacturing sheet material made of copper-silver alloy, the method comprising the steps of: (a) casting continuously copper-silver alloy so as to obtain base material having a thickness or diameter within a range of 6 to 30 mm; (b) rolling the base material at least once so as to obtain sheet material having a thickness within a range of 0.01 to 0.10 mm; and (c) annealing the sheet material, wherein the sheet material having undergone operation in the step (c) has a Vickers hardness of 280 HV or higher.
Claims8
A method of manufacturing a sheet material made of a copper-silver alloy, the method comprising the steps of:
- (a) casting continuously the copper-silver alloy so as to obtain a base material having a thickness or a diameter within a range of 6 to 30 mm, wherein the copper-silver alloy, to be casted continuously, consists of:
- copper within a range of 70 to 92 mass %;
- silver within a range of 8 to 30 mass %;
- and a balance including unavoidable impurities within a range of 0 to 1 mass %;
- (b) rolling the base material at least once so as to obtain the sheet material having a thickness within a range of 0.01 to 0.10 mm;
- and
- (c) annealing the sheet material;
- and
- wherein the sheet material having undergone step (c) has an electrical conductivity of 38% IACS or higher and a Vickers hardness of 280 HV or higher.
A method of manufacturing a sheet material made of a copper-silver alloy, the method comprising the steps of:
- (a) casting continuously the copper-silver alloy so as to obtain a base material having a thickness or a diameter within a range of 6 to 30 mm, wherein the copper-silver alloy, to be casted continuously, consists of:
- copper within a range of 70 to 92 mass %;
- silver within a range of 8 to 30 mass %;
- and a balance including unavoidable impurities within a range of 0 to 1 mass %;
- (b) rolling the base material at least once so as to obtain the sheet material having a thickness within a range of 0.01 to 0.10 mm;
- and
- (c) annealing the sheet material;
- and
- wherein a casting speed in step (a) falls within a range of 50 to 1000 mm/min, a heating temperature falls within a range of 200 to 500° C., and a heating time falls within a range of 60 to 4500 minutes in step (c), and the sheet material having undergone step (c) has an electrical conductivity of 38% IACS or higher, and has a Vickers hardness of 280 HV or higher.
A method of manufacturing a sheet for an electrode of a probe card, the method comprising the steps of:
- (a) casting continuously a copper-silver alloy so as to obtain a base material having a thickness or a diameter within a range of 6 to 30 mm, wherein the copper-silver alloy, to be casted continuously, consists of:
- copper within a range of 70 to 92 mass %;
- silver within a range of 8 to 30 mass %;
- and a balance including unavoidable impurities within a range of 0 to 1 mass %;
- (b) rolling the base material at least once so as to obtain a sheet material having a thickness within a range of 0.01 to 0.10 mm;
- and
- (c) annealing the sheet material;
- and
- wherein the sheet made of the sheet material having undergone step (c) has an electrical conductivity of 38% IACS or higher and a Vickers hardness of 280 HV or higher.
A method of manufacturing a sheet for an electrode of a probe card, the method comprising the steps of:
- (a) casting continuously a copper-silver alloy so as to obtain a base material having a thickness or a diameter within a range of 6 to 30 mm, wherein the copper-silver alloy, to be casted continuously, consists of:
- copper within a range of 70 to 92 mass %;
- silver within a range of 8 to 30 mass %;
- and a balance including unavoidable impurities within a range of 0 to 1 mass %;
- (b) rolling the base material at least once so as to obtain a sheet material having a thickness within a range of 0.01 to 0.10 mm;
- and
- (c) annealing the sheet material;
- and
- wherein a casting speed in step (a) falls within a range of 50 to 1000 mm/min, a heating temperature falls within a range of 200 to 500° C., and a heating time falls within a range of 60 to 4500 minutes in step (c), and the sheet made of the sheet material having undergone step (c) has an electrical conductivity of 38% IACS or higher and a Vickers hardness of 280 HV or higher.
Dependencies are inferred from the claim text.