Tool for Use in Brazing I/O Pins
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2005-Feb-07
In a mechanism utilized as a tool in brazing I/O pins to an integrated circuit chip substrate, a pin well is provided in a pin boat so that the brazing material disc preform sits above the pin. The substrate is brought close to the pin boat and rests on four standoff pins (not shown). By placing the preform in the pin well and lowering the substrate, the preform can not slip out of position. The mechanism incorporates "piston pins" to place pressure against the frame and I/O pins. Each piston pin is an elongated steel rod with a head in the center. It is placed over a spring and is captivated in the spring boat. The piston pins project out of the spring boat and into the pin boat far enough to exert pressure on the frame and pins.