Joint with first and second members with a joining layer located therebetween containing sn metal and another metallic material; methods for forming the same
AssigneeKabushiki Kaisha Toshiba
InventorsToshihide Takahashi, Tatsuoki Kono, Mitsuhiro Oki, Akiko Suzuki
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Abstract
The present invention relates to a joint (10) that includes a first member (11) to be jointed, a second member (12) to be jointed and a jointing layer (13) located between the first member (11) and the second member (12). The jointing layer (13) is made of Sn metal and a metallic material with a melting point higher than the melting point of the Sn metal. The present invention relates also to a method of joining this first member (11) to the second member (12).
Claims20
A joints comprising a first member to be jointed, a second member to be jointed and a jointing layer located between said first member and said second member, wherein said jointing layer is made of Sn metal and a metallic material except Pb with a melting point higher than the melting point of said Sn metal.
A jointing method comprising:
- preparing a first member to be jointed and a second member to be jointed;
- forming an Sn film on at least one of said first member and said second member;
- and
- pressing said first member and said second member via said Sn film within a temperature range of 250 to 450 degrees centigrade;
- wherein said at least one of said first member and said second member includes a metallic material with a melting point higher than the melting point of said Sn metal.
A jointing method comprising:
- preparing a first member to be jointed and a second member to be jointed;
- forming an Sn film and a metallic material film with a melting point higher than the melting point of Sn metal;
- pressing said first member and said second member via said Sn film and said metallic material film within a temperature range of 250 to 450 degrees centigrade.
Dependencies are inferred from the claim text.