TOOL FOR MICROWELDING Russian patent published in 2004 - IPC

FIELD: manufacture of powerful semiconductor devices, namely connection of inner flat wire leads. SUBSTANCE: tool includes rod with rectangular lateral opening for feeding welded lead. Rod has working land with lengthwise groove. The last has height up to 0.8a and width - up to 1.2b, where a - thickness and b - width of welded lead. Method allows to enhance quality of microwelded joints of flat leads due to minimum deformation of welded lead and uniform strength of joint along the whole area of lead engagement with contact land of crystal or body. EFFECT: improved quality of microwelded joints. 3 dwg