Optical package structure

• US 6,787,890 B2
• Filed: 07/18/2002
• Issued: 09/07/2004
• Est. Priority Date: 05/30/2002
• Status: Expired due to Fees

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Mou, Chung Shin, Huang, Nan Tsung
• Primary Examiner(s): Lee, Eddie
• Assistant Examiner(s): Gebremariam, Samuel
• Application Number:
  US10/198,976
• Publication Number:
  US 20030222271A1
• Time in Patent Office: 782 Days
• Field of Search: 257/680, 257/80, 257/81, 257/82, 257/98, 257/99
• US Class Current: 257/680
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01S 5/02345 Wire-bonding
• CPC Class Codes: H01S 5/4025 Array arrangements, e.g. constituted by discrete laser diodes or laser bar H01S5/42 takes precedence

Abstract

An optical package structure (2) includes a cover (21) with a lens part (22), and a base member (23) which combines with the cover to define a closed space in which to package optical components. The base member has a bottom panel (232) and a substrate (234). A plurality of solder pads (231, 237) is provided on a top and bottom surfaces (2321, 2342) of the bottom panel and of the substrate. The solder pads on the top surface electrically connect with the optical components. A plurality of inner conductive traces (236, 238) is provided through the bottom panel and the substrate which electrically connect the solder pads on the top surface of the bottom panel with corresponding solder pads on the bottom surface of the substrate via printed circuits (235) on the substrate. Thus, an external electrical connection of the optical components is attained without wires and electrical pins.

Claims

1. An optical package structure comprising:

a cover with a lens part in a top portion of the cover;

a base member combining with the cover to define a closed space to package optical components therein; and

an engaging part surrounding the cover for engaging with an optical fiber or other optical component, and having an opening for making assembly and disassembly of the engaging part to and from the cover easy;

wherein a plurality of solder pads is provided on both a top and a bottom surface of the base member, and a plurality of inner conductive traces which extends through the base member is provided to electrically connect the solder pads on the top surface to the solder pads on the bottom surface.

2. The optical package structure as claimed in claim 1, wherein a plurality of optical components are fitted in the optical package structure connecting to the corresponding solder pads and a printed circuit board is provided on which the optical package structure is mounted.

3. The optical package structure as claimed in claim 2, wherein the base member includes a bottom panel and a substrate.

4. The optical package structure as claimed in claim 3, wherein the bottom panel has a first surface, a second surface, and a plurality of inner conductive traces extending through the bottom panel, and a plurality of the solder pads is provided on the first surface to electrically connect with the conductive traces.

5. The optical package structure as claimed in claim 4, wherein the substrate has a top surface with printed circuits thereon, a bottom surface with a plurality of the solder pads thereon, and a plurality of inner conductive traces extending through the substrate to electrically connect the printed circuits with the solder or pads.

6. The optical package structure as claimed in claim 5, wherein the substrate combines with the bottom panel so that the conductive traces of the bottom panel electrically connect with respective printed circuits on the substrate.

7. An optical package structure comprising:

a cover defining an aperture in a top portion for transmission of optical signals;

a lens part secured to the cover;

a base member combining with the cover to define a closed space to package optical components therein; and

an engaging part surrounding the cover for engaging with an optical fiber or other optical component, and having an opening for making assembly and disassembly of the engaging part to and from the cover easy;

wherein a plurality of solder pads is provided on both a top and a bottom surface of the base member, a plurality of inner conductive traces extends through the base member and provides an electrical connection of the solder pads on the top surface with the solder pads on the bottom surface, a plurality of optical components is fitted in the optical package structure connecting to the corresponding solder pads, and a printed circuit board is provided on which the optical package structure is mounted.

8. The optical package structure as claimed in claim 7, wherein the lens part comprises a lens and a mounting frame to receive the lens therein.

9. The optical package structure as claimed in claim 8, wherein the lens part is secured within the cover with the lens optically focusing through the aperture of the cover.

10. The optical package structure as claimed in claim 7, wherein the base member is formed from a kind of ceramic using Low-Temperature Co-Fired Ceramic technology.