Replacement Design for a Multi-Pin Connector
Original Publication Date: 1988-Mar-01
Included in the Prior Art Database: 2005-Feb-14
Multi-pin connectors, such as the 72-pin connector discussed in this article, are prone to high defect rates due to the design of the four rows of Gullwing solder tails. The solder tails make it difficult to hold center-to-center spacing and coplanarity due to the flimsy nature of the solder tails. The redesigned 72-pin connector incorporates a simple, straight pin inserted into a plastic body to connect between the planar and the signal distribution board, as shown in Fig. 1. The straight pins are well supported and are held to close center location by the plastic body. The process to solder the redesigned connector is changed to accommodate the new design. The surface mount pads are replaced by plated through holes in the planar board, as shown in the top, side and front views of the connector (Figs. 2A, 2B and 2C).