Ball bonding method and apparatus for performing the method
作者： Farhad Farassat , Walter Birgel
DOI:
关键词: Structural engineering 、 Clamp 、 Ball (bearing) 、 Wire bonding 、 Capillary action 、 Ball bonding 、 Composite material 、 Ultrasonic sensor 、 Welding 、 Materials science 、 Breakage
摘要: A ball bonding method and apparatus is disclosed including gold wire bonding. The steps include positioning lowering a bond capillary (10) with (11) flame-scarfed (12) downwardly onto first pad (17). welded by heating applying pressure or ultrasonic, both. raised moved to form loop (21), followed the step of welding second (16) using pressure, ultrasonic tail-length position (29) broken vertical pulling force created closing clamp (13) raising engaging (11). end free (12). For flame-scarfing, distance travelled until breaks measured flame-scarfing lance (18) accurately adjusted, after breakage adjusted.
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