Patent ID: 7431195
Filing Date: 2008-10-07
Classification: B23K,C23C,H01J

Abstract:
1. A method for forming a solder bonded sputter target/backing plate assembly comprising the steps of: a) forming a continuous solid backing plate with a bonding surface having at least two spaced-apart peripheral flanged segments disposed on the bonding surface of the backing plate; b) forming a sputter target having a sputter surface and a bonding surface and at least two peripheral notched segments on the bonding surface, and said peripheral notched segments adapted for aligning with the peripheral flange segments; c) applying a solder material to an interface spacing defined by superimposing and aligning said bonding surface of the sputter target on the bonding surface of the backing plate and said peripheral flange segments having a height thickness larger than the depth thickness of the peripheral notched segments; and d) allowing said solder material to solidify and bond the sputter target to the backing plate.