Optical device package and method for manufacturing the same

Abstract

An optical device package includes a semiconductor substrate, and an optical device. The semiconductor substrate has a first surface, a second surface different in elevation from the first surface, and a profile connecting the first surface to the second surface. A surface roughness of the profile is greater than a surface roughness of the second surface. The optical device is disposed on the second surface and surrounded by the profile.

What is claimed is: 
     
         1 . An optical device package, comprising:
 a semiconductor substrate having a first surface, a second surface different in elevation from the first surface, and a profile connecting the first surface to the second surface, wherein a surface roughness of the profile is greater than a surface roughness of the second surface.   
     
     
         2 . The optical device package of  claim 1 , wherein the profile includes a scallop shape. 
     
     
         3 . The optical device package of  claim 1 , wherein the first surface, the second surface and the profile collectively define a recess to receive an optical fiber. 
     
     
         4 . The optical device package of  claim 3 , further comprising a protection layer disposed on the first surface, wherein the protection layer defines an opening exposing the optical fiber. 
     
     
         5 . The optical device package of  claim 3 , wherein the second surface includes a curved surface facing the optical fiber, and the optical fiber contacts at least a portion of the curved surface. 
     
     
         6 . The optical device package of  claim 3 , wherein the profile is not exposed in a view from a direction perpendicular to the first surface. 
     
     
         7 . The optical device package of  claim 6 , wherein the second surface is exposed in the view from the direction perpendicular to the first surface. 
     
     
         8 . An optical device package, comprising:
 a carrier defining a recess, wherein a sidewall of the recess includes a plurality of concaves with substantially uniform shapes.   
     
     
         9 . The optical device package of  claim 8 , wherein in a cross-sectional view, two of the concaves are located on two opposite sides of the recess and are substantially symmetrical. 
     
     
         10 . The optical device package of  claim 8 , wherein in a cross-sectional view, two of the concaves on one of two opposite sides of the recess are substantially symmetrical along an imaginary axis substantially parallel to a first surface of the carrier. 
     
     
         11 . The optical device package of  claim 8 , wherein centers of curvature of the concaves are located in the recess. 
     
     
         12 . The optical device package of  claim 8 , wherein in a cross-sectional view, each of the concaves includes a crest, and the crests of the concaves are substantially arranged on a first imaginary straight line. 
     
     
         13 . The optical device package of  claim 12 , wherein in a cross-sectional view, each of the concaves includes a trough, and the troughs of the concaves are substantially arranged on a second imaginary straight line. 
     
     
         14 . The optical device package of  claim 13 , wherein the second imaginary straight line is substantially parallel to the first imaginary straight line. 
     
     
         15 . An optical device package, comprising:
 a carrier defining a space recessed from an upper surface, wherein the space includes a bottom surface and a sidewall connecting the upper surface and the bottom surface; and   an optical device disposed in the space;   wherein the bottom surface has a curved shape fitting in a portion of a contour of the optical device.   
     
     
         16 . The optical device package of  claim 15 , wherein the portion of the contour of the optical device is a bottom point of the optical device in a cross-sectional view. 
     
     
         17 . The optical device package of  claim 15 , wherein the portion of the contour of the optical device contacts the curved shape of the bottom surface in a cross-sectional view. 
     
     
         18 . The optical device package of  claim 17 , wherein a center of the optical device and a center of curvature of the bottom surface are located on a same side of the bottom surface in the cross-sectional view. 
     
     
         19 . The optical device package of  claim 15 , wherein at least a portion of the sidewall is substantially spaced apart from the optical device in a cross-sectional view. 
     
     
         20 . The optical device package of  claim 15 , wherein the sidewall is substantially perpendicular to the upper surface in the cross-sectional view.