摘要:
A non-intrusive surface mount interconnect that provides a through-hole interconnect to the opposite side of a PCB board. A headed pin (head up/shank down) can be picked by standard placement equipment from a specially configured pocket tape using a hole that is tightly controlled for pin location. The head of the pin rests on top of the packaging tape preventing the pin from passing through the hole. A tapered section on the pin fits with minimal clearence assuring that a vacuum nozzle on the placement equipment when it descends sees and contacts the head top for vacuum nozzle pick-up.
摘要:
A surface mount connector for circuit board attachment is provided in the form of an elongate pin with a head or base formed at the lower end of the pin. The base has a bottom surface that extends substantially normal to the axis of the pin and is dimensioned to be positioned on, and soldered to, a pad on a primary circuit board. A solder bond is achieved by re-flowing a quantity of solder applied to the pad along with a quantity of flux before placing the base on top of the quantity of solder. The base is formed with a plurality of channels that open through the bottom surface and through a peripheral wall of the base for permitting gases generated by vaporizing the flux during solder re-flow to escape from underneath the base and to increase the strength of the solder bond between the pad and the base. Exhaustion of the gases prevents undesirable skating of the connector and misalignment and eliminates voids in the solder bond that would otherwise weaken the bond.