| 摘要 |
A plastic encapsulated integrated circuit package has a chip (18) secured to the upper surface of a base (16) and is connected to leads (22) which have their lower surfaces in a plane above that of the bottom of the base (16). An electrostatic shield (30) is electrically connected to the bottom of the base (16) and underlies the leads (22) without touching them, to reduce crosstalk. The support for the base (16) is integrally connected by a conductive strip to the lead for the ground pin of the chip (18), to ground the shield (30). The whole is plastic encapsulated. To permit encapsulation, the shield (30) extends towards but stops short of the dam bars (20) for the leads (22). |
