Electro-optic device assembly having integral heat sink/retention means

• US 5,032,898 A
• Filed: 12/07/1981
• Issued: 07/16/1991
• Est. Priority Date: 12/10/1979
• Status: Expired due to Fees

• Current Assignee: AMP Incorporated (Johnson Controls International plc)
• Original Assignee: AMP Incorporated (Johnson Controls International plc)
• Inventors: Bendiksen, Leonard F., Bowen, Terry P.
• Primary Examiner(s): CARROLL, JAMES J
• Application Number:
  US06/328,323
• Time in Patent Office: 3,508 Days
• Field of Search: 357/68, 357/81, 357/74, 350/96.2, 350/96.21
• US Class Current: 257/433
• CPC Class Codes: G02B 6/421 the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
• CPC Class Codes: G02B 6/4269 with heat sinks or radiation fins
• CPC Class Codes: G02B 6/4292 the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
• CPC Class Codes: H01L 33/483 Containers
• CPC Class Codes: H01L 33/641 characterized by the materials
• CPC Class Codes: H01L 33/642 characterized by the shape

Abstract

An electro-optic device assembly and handling technique is disclosed. The assembly comprises an elongate combination heat sink and retention clip, a heat dispersive substrate affixed to one elongate face of the clip and having lead means secured to an outward face thereof, and an electrooptic chip mounted upon the substrate making electrical contact with the leads. A length of waveguide is bonded to an active portion of the chip, and a ferrule member is provided having a profiled passageway for receiving the above assembly therein. Subsequently, the ferrule is inserted into a header housing, and malleable ends of the heat sink clip are inwardly clasped upon the profile of the header housing to secure the heat sink clip, and assembly elements thereupon, to the connector housing.

Claims

1. An electro-optic device assembly, comprising:

an elongate thermally-conductive member of malleable material having end portions extending substantially normal thereto;

opto-electrical assembly means including means for transferring thermal energy affixed substantially orthogonally to said thermally-conductive member, electrical lead means secured to an outer surface of said thermal energy transfer means, opto-electrically active device means electrically connected to said electrical lead means;

a length of optical waveguide having one end affixed to an active area of said opto-electrically active device means;

ferrule means having an outer profiled surface and a longitudinal passageway therethrough, said passageway having a large rearward portion in which said opto-electrical assembly means is disposed and a smaller forward portion along which said optical waveguide extends; and

housing means having a profiled cavity in which said outer profiled surface of said ferrule means is disposed and engaging means engaged by respective end portions securing said thermally-conductive member to said housing means.

2. An electro-optic device assembly as set forth in claim 1 wherein said thermal energy transfer means includes a thermally-conductive metal member secured to said thermally-conductive member and a dielectric thermal linkage member secured to said conductive metal member.

3. An electro-optic device assembly as set forth in claim 1 wherein said housing means has heat sink characteristics so that a thermal path is established from said opto-electrical assembly means via said thermally-conductive member to said housing means.

4. A fiber optic semiconductor device having a low thermal impedance comprising:

a thermally conductive header;

a semiconductor chip, having a photo-active area, thermally connected to said header;

a segment of fiber optically connected to said photo-active area; and

heat spreader means thermally coupled to said header, said heat spreader means extending outwardly from said header for conducting heat away from said semiconductor chip;

a cylindrical, thermally conductive member orthogonal to and thermally connected to said heat spreader means; and

plastic enclosure means engaging said heat spreader means for enclosing said semiconductor chip, said cylindrical member, and said fiber, said fiber extending through a surface of said enclosure means, and wherein said cylindrical member conducts heat away from said semiconductor chip through said enclosure means.

5. A fiber optic semiconductor device assembly, comprising:

a thermally-conductive member;

semiconductor chip means having a photoactive area thermally connected to said thermally-conductive member;

optical waveguide means optically connected to said photoactive area of said semiconductor chip means;

heat-spreading means thermally coupled to said thermally-conductive member and extending outwardly from said thermally-conductive member for conducting heat away from said semiconductor chip means;

enclosure means engaging said heat-spreading means thereby enclosing said semiconductor chip means and said optical waveguide means, said optical waveguide means extending through an end surface of said enclosure means and wherein said thermally-conductive member and said heat-spreading means conducts heat away from said semiconductor chip means through said enclosing means; and

mounting means as part of said heat-spreading means for mounting said enclosure means in a housing member.

6. A fiber optic semiconductor device as set forth in claim 5, wherein said heat-spreading means includes a heat-spreading wafer.

7. A fiber optic semiconductor device as set forth in claim 5, wherein said enclosure means has a profiled bore extending therethrough and including a first section in which said thermally-conductive member, said semiconductor chip means and an inner part of said optical waveguide means are disposed and a second section along which an outer part of said optical waveguide means extends to an outer front surface of said enclosure means.

8. A fiber optic semiconductor device as set forth in claim 7, wherein said enclosure means has an outer profiled configuration for matable engagement with a complementary bore in the housing member.