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Welding electrode / molybdenum / tungsten - Unitip®, Unibond®
Unitips are electrodes for parallel gap bonding of gold plated kovar, copper, or goldribbons (wires) which are smaller than 0.010 inches (0.25 mm). They are made
from two pieces of molybdenum or tungsten, which are permanently bonded to
an insulating spacer. This fixed gap and bonded construction results in a tip which
wears uniformly when properly dressed. The length of the Unitip and the flat area
on the front allows it to bond ribbons extremely close to the walls of packages
as deep as 0.450 inches (11.5 mm). The narrower Thinline “L” series Unitips have
a tapered profile, enabling them to be used closer to the corners of packages