A leadless high density connector including a plurality of connector pins each having multiconductor pins electrically connected to solder balls on the back side of the connector for interconnection to a PWB. The solder balls form a ball grid array (BGA), which replaces thin gull wing leads used on connectors...http://www.google.fr/patents/US5593322?utm_source=gb-gplus-shareBrevet US5593322 - Leadless high density connector
