| 摘要 |
An ultrasonic welding head for ultrasonic welding connection of a chip to a substrate is described, in which the welding parameters have a negligibly slight variation or are constant. This is attained by providing that a static friction element that increases the static friction relative to the chip to be welded is secured to the welding die of the ultrasonic welding head, and has a flat frictional end face. The static friction element is preferably formed by a ceramic chip. |
