CROSS UNDER METAL INTERCONNECTION STRUCTURE OF SELF SCANNING LIGHT-EMITTING DEVICE

摘要

A cross under metal wiring structure which may prevent "latch-up" from causing at a pnpn-structure is provided. The cross under metal wiring structure comprises a lower wiring provided on a topmost layer of the pnpn-structure isolated in an island by a groove, and an upper wiring connected to the lower wiring through a first contact hole opened in an insulating film covered the isolated pnpn-structure and to a layer just below the topmost layer through a second contact hole opened in the insulating film.