Patent · US Expired

Method of making a relatively flat semiconductor package having a semiconductor chip encapsulated in molded material

US5275975A · kind A · utility

8Cited by
6References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 1, 1992
Grant dateJan 4, 1994
Priority date
Expiry dateJul 1, 2012

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/49121
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A flat package for semiconductor integrated circuit devices allows edge-mounting and surface-mount. The package may be molded plastic containing a semiconductor chip, and flat leads extend from one edge of the package. The leads are bent to provide an area to solder to conductors on a PC board. Mechanical positioning, mechanical support and spacing are provided by studs extending from the edge of the package adjacent the leads. The studs have stops formed at a position even with flat outer surfaces of the bent leads; the portion outward of the stops fits into holes in the PC board.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.