Optoelectronic device and method of assembly

• US 5,933,558 A
• Filed: 05/22/1997
• Issued: 08/03/1999
• Est. Priority Date: 05/22/1997
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Carney, Francis J., Knapp, James H., Norton, Laura J., Sauvageau, Joseph E.
• Primary Examiner(s): Sanghavi, Hemang
• Application Number:
  US08/861,880
• Time in Patent Office: 803 Days
• Field of Search: 385/88-94, 385/71, 385/49, 385/39, 385/50, 385/51, 385/52
• US Class Current: 385/88
• CPC Class Codes: G02B 6/4245 Mounting of the opto-electronic elements
• CPC Class Codes: G02B 6/426 mounting, engaging or coupling of the package to a board, a frame or a panel
• CPC Class Codes: G02B 6/4292 the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements

Abstract

An optoelectronic connector (10) coupled to a fiber ferrule (38) containing an optical fiber (39) and a method for coupling the optoelectronic connector (10) to the fiber ferrule (38). The optoelectronic connector (10) has a base (11) and walls (13, 14, 17, and 18) that form a cavity (19). A semiconductor receiving area (26) extends into a first portion of the base (11) and an interconnect recess (27) extends into a second portion of the base (11). Alignment pins (31) extend from the second portion of the base (11). The optoelectronic connector (10) may be a unitary structure. The fiber ferrule (38) is inserted into the cavity (19) to form an optoelectronic device (30).

Claims

1. An optoelectronic device, comprising:

a base having a support wall, the support wall having a first surface;

first and second walls extending from the support wall, the first and second walls opposite one another;

a third wall extending from the support wall, the third wall in contact with the first and second walls;

a fourth wall spaced apart from the support wall and in contact with the first and second walls such that an opening is between the fourth wall and the support wall, and wherein the support, first, second, third, and fourth walls cooperate to form a cavity;

a recess in the support wall, the recess having a second surface;

a semiconductor component receiving area extending from the second surface into the support wall;

a first alignment feature extending from the base; and

a semiconductor component located in the semiconductor component receiving area.

2. The optoelectronic device of claim 1, further including a ferrule having a mating surface and an optical fiber extending therethrough.

3. The optoelectronic device of claim 2, wherein the semiconductor component is a photonic device.

4. The optoelectronic device of claim 1, further including an interconnect cavity extending from the second surface into the support wall, wherein the interconnect cavity is adjacent the semiconductor component receiving area.

5. The optoelectronic device of claim 4, further including a tape automated bonding (TAB) tape located in the interconnect cavity, wherein the semiconductor component is bonded to the TAB tape.

6. The optoelectronic device of claim 4, further including electrical contacts in the base, wherein the semiconductor component is flip-chip bonded to the electrical contacts.

7. The optoelectronic device of claim 4, further including electrical contacts in the base, wherein the semiconductor component is wire bonded to the electrical contacts.

8. An optoelectronic connector, comprising:

a base having a first surface, wherein a recess extends from the first surface into the base, the recess having recess walls, a floor, and a semiconductor component receiving area extending from the floor into the base;

a first wall extending from a first portion of the first surface and terminating with a first clip;

a second wall extending from a second portion of the first surface and terminating with a second clip, the first and second walls facing one another;

a third wall extending from a third portion of the first surface, the third wall coupling the first wall to the second wall;

a fourth wall spaced apart from the first surface and coupling the first wall to the second wall, the third and fourth walls substantially parallel to each other, wherein the first, second, third, and fourth walls cooperate to form a cavity; and

a first alignment feature extending from the floor.

9. The optoelectronic connector of claim 8, wherein the optoelectronic connector is a unitary structure.

10. The optoelectronic connector of claim 9, wherein the optoelectronic connector is plastic.

11. The optoelectronic connector of claim 8, further including

a second alignment feature extending into the third wall.

12. The optoelectronic connector of claim 11, further including

a positioning feature protruding from one of the third and fourth walls, wherein the positioning feature protrudes in a direction facing away from the cavity.

13. The optoelectronic connector of claim 8, further including an interconnect recess extending from the surface into the base, wherein the interconnect recess is adjacent the recess walls.

14. The optoelectronic connector of claim 13, further including a tape automated bonding (TAB) tape located in the interconnect recess.

15. The optoelectronic connector of claim 13, further including electrical contacts located in the interconnect recess.

16. The optoelectronic connector of claim 8, wherein the first alignment feature includes a plurality of alignment pins molded into the base.

17. A method for assembling an optoelectronic device, comprising the steps of:

mounting an optoelectronic component to an optoelectronic connector comprising;

a base having a first surface, wherein a recess extends from the first surface into the base, the recess having recess walls, a floor, and a semiconductor component receiving area extending from the floor into the base;

a first wall extending from a first portion of the first surface and terminating with a first clip;

a second wall extending from a second portion of the first surface and terminating with a second clip, the first and second walls facing one another;

a third wall extending from a third portion of the first surface, the third wall coupling the first wall to the second wall;

a fourth wall spaced apart from the first surface and coupling the first wall to the second wall, the third and fourth walls substantially parallel to each other, wherein the first, second, third, and fourth walls cooperate to form a cavity; and

an alignment feature extending from the floor;

coupling an optical fiber to a fiber connector; and

directly coupling the fiber connector to the optoelectronic connector, wherein an end of the optical fiber is spaced apart from the optoelectronic component.

18. The method of claim 17, wherein the step of mounting an optoelectronic component to an optoelectronic connector includes mounting the optoelectronic component to a tape automated bonded (TAB) tape and mounting the TAB tape to the fiber connector.

19. The method of claim 17, wherein the step of directly coupling the fiber connector to the optoelectronic connector includes positioning an end of the optical fiber to be less than approximately 125 micrometers from the optoelectronic component.

20. The method of claim 17, further including the step of forming a molded contact in the optoelectronic connector and wherein the step of directly coupling the fiber connector to the optoelectronic connector includes mounting the optoelectronic component on the molded contact.