Patent ID: 7755030
Filing Date: 2010-07-13
Classification: H01L,H04N

Abstract:
1. An optical device, comprising: a base provided with an opening and made of a mold resin; a wiring buried in the mold resin so as to cover an upper surface and a lower surface of the wiring; a translucent member attached to an upper surface of the base; an optical element chip coupled to the lower surface of the base through a bump which connects an electrode pad disposed on the optical element chip to the wiring; a semiconductor chip buried in the base; and a connection member buried in the base, the connection member connecting the semiconductor chip and the wiring, wherein the wiring has a reentrant cavity at the lower surface, only portions protruding downward from the bottom of the reentrant cavity are exposed from the mold resin to be an internal terminal section and an external terminal section, the reentrant cavity is covered with the mold resin, the translucent member is a hologram, the optical element chip includes a light receiving element and a light emitting element, and the optical device is a hologram unit.