| 摘要 |
A brazing method for, through melting of a connecting agent then solidification of this connecting agent, achieving a mechanical and electrical connection between at least one first face ( 2 ), of a first piece ( 200 ), and at least one second face ( 3 ), of a second piece ( 300 ), said first piece ( 200 ) and said second piece ( 300 ) being constituents of an electro-technical device ( 4 ), the first piece ( 200 ) being made starting from at least one first metallic material ( 202 ) in the form of a foil ( 201 ) of a given thickness, this first material ( 202 ) comprising a main constituent ( 203 ), referred to as the first main constituent ( 203 ), said first metallic material having a defined temperature of complete solidification (solidus) (T 2 ), referred to as the first complete solidification temperature (T 2 ), and at least one dielectric interfacing material, the second piece ( 300 ), on the one hand, having, in a direction substantially orthogonal to the second face ( 3 ), a dimension (D) appreciably greater than the thickness (E) of the first metallic material ( 202 ) in foil form ( 201 ) making up the first piece ( 200 ), and, on the other hand, being composed of a metallic material ( 302 ), referred to as the second metallic material ( 302 ), comprising a main constituent ( 303 ), referred to as the second main constituent ( 303 ), at least substantially similar to the first main constituent ( 203 ) of the first metallic material ( 202 ), said second metallic material ( 302 ) likewise having a temperature of complete solidification (solidus) (T 3 ), also defined, referred to as the second temperature of complete solidification (T 3 ), this brazing method being characterised in that used is a connecting agent made up beforehand of a metallic material ( 102 ) which, referred to as the third metallic material ( 102 ), comprises a main constituent ( 103 ), referred to as the third main constituent ( 103 ), at least substantially similar to the first main constituent ( 203 ), this third metallic material ( 102 ) having however a temperature of complete melting (liquidus) (T 1 ) which is lower, on the one hand, than the first complete solidification temperature (T 2 ), and, on the other hand, than the second complete solidification temperature (T 3 ). |
