Patent ID: 8692264
Filing Date: 2014-04-08
Classification: B41J,H01L

Abstract:
1. A light-emitting element comprising: a semiconductor substrate; an island structure formed on the semiconductor substrate and including at least a current confining layer and p-type and n-type semiconductor layers; a light-emitting thyristor formed in the island structure and having a pnpn structure; and a shift thyristor formed in the island structure and having a pnpn structure, wherein the island structure includes a first side surface having a first depth such that the first side surface does not reach the current confining layer in a formation region of the shift thyristor and a second side surface having a second depth such that the second side surface reaches at least the current confining layer in a formation region of the light-emitting thyristor, and an oxidized region selectively oxidized from the second side surface is formed in the current confining layer in the formation region of the light-emitting thyristor.