Patent ID: 6600223
Filing Date: 2003-07-29
Classification: H01L

Abstract:
A hermetically sealing enclosure for housing photo-semiconductor devices, the enclosure comprising:(a) a base plate having an area for mounting photo-semiconductor devices; (b) a side-frame member bonded on the base plate such that the side-frame member encloses the area for mounting photo-semiconductor devices; (c) a ceramic terminal member incorporated into the side-frame member such that the top surface of the ceramic terminal member and the top surface of the side-frame member produce a planar surface; (d) a first wiring layer that: (d1) comprises a plurality of wiring strips; and (d2) penetrates through the ceramic terminal member; (e) a second wiring layer (hereinafter referred to as the second wiring layer) that: (e1) comprises at least one wiring strip; (e2) is connected to the first wiring layer at the outside of the ceramic terminal member; and (e3) stretches upward; (f) another second wiring layer (hereinafter referred to as the other second wiring layer) that: (f1) comprises at least one wiring strip; (f2) is connected to the first wiring layer at the inside of the ceramic terminal member; and (f3) stretches upward; (g) at least one third wiring layer that: (g1) comprises at least one wiring strip; (g2) connects the second wiring layer and the other second wiring layer; (g3) penetrates through the ceramic terminal member via a pathway insulated from the first wiring layer; and (g4) is insulated from the other third wiring layers when more than one third wiring layer is used; (h) a means for securely holding an optical fiber, the means being provided at the side-frame member; (i) a seal ring placed on the planar surface produced by the top surface of the ceramic terminal member and the top surface of the side-frame member; (j) a sealing cover placed on the top surface of the seal ring; and (k) a plurality of external leads connected to the wiring strips in the first wiring layer at the outside of the enclosure.