IP Library Granted Patent US 10,204,844
Granted Patent B1
US 10,204,844 · App. 15/814,670 · Granted Feb 12, 2019

Clip for semiconductor package

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Quick Facts
Patent No.
US 10,204,844
App. No.
15/814,670
Granted
Feb 12, 2019
Kind
B1
Abstract

Implementations of a clip may include a die attach portion including at least one protrusion extending from the die attach portion and a lead frame alignment portion including at least one alignment feature. The at least one alignment feature may be configured to couple into at least one hole in a lead frame thereby aligning the clip with the lead frame. The at least one protrusion may be configured to couple into at least one recess in the die.

Claims (34)

1. A clip comprising:

a die attach portion comprising at least one protrusion extending from the die attach portion; and

a lead frame alignment portion comprising at least one alignment feature;

wherein the at least one alignment feature is configured to couple into at least one hole in a lead frame thereby aligning the clip with the lead frame; and

wherein the at least one protrusion is configured to couple into at least one recess in the die.

2. The clip of claim 1 , wherein the die attach portion comprises four protrusions extending from the die attach portion.

3. The clip of claim 1 , wherein the lead frame alignment portion comprises two alignment features.

4. The clip of claim 1 , wherein a section of the lead frame alignment portion extends in a first direction substantially perpendicular away from the die attach portion, in a second direction substantially parallel away from the die attach portion, and in a third direction parallel to the first direction.

5. The clip of claim 1 , wherein the alignment feature does not cross a plane formed by the die attach portion.

6. The clip of claim 1 , further comprising a plurality of bond features configured to ensure a minimum bonding compound thickness.

7. A semiconductor package comprising:

a die coupled to a lead frame; and

a clip directly coupled to both the die and the lead frame;

wherein the lead frame and the clip comprise an interlocking alignment mechanism which fixedly couples the clip to the lead frame in a desired physical arrangement;

wherein the interlocking alignment mechanism is configured to prevent movement of the clip during one of reflow and adhesive die attach curing of the die.

8. The package of claim 7 , wherein the interlocking alignment mechanism comprises an alignment feature on the clip and a hole in the lead frame, wherein the alignment feature is configured to couple in the hole.

9. The package of claim 7 , wherein the lead frame and the clip comprise a second interlocking alignment mechanism.

10. The package of claim 7 , wherein the interlocking alignment mechanism does not cross a plane formed by the die.

11. The package of claim 7 , wherein a section of the clip extends in a first direction substantially perpendicular away from the die, in a second direction substantially parallel away from the die, and in a third direction parallel to the first direction.

12. The package of claim 7 , wherein a lead frame alignment portion of the clip extending along a side of the semiconductor package is longer than one of a length and a width of a die attach portion of the clip.

13. A semiconductor package comprising:

a die comprising at least one recess in a first side of the die;

a lead frame coupled to the first side of the die, the lead frame comprising at least one opening therein; and

a clip comprising a die attach portion comprising at least one protrusion extending from the die attach portion; and

a lead frame alignment portion comprising at least one alignment feature;

wherein the at least one alignment feature is configured to slidably couple into the at least one opening in the lead frame; and

wherein the at least one protrusion is configured to couple into the at least one recess in the die.

14. The package of claim 13 , wherein the at least one opening extends completely through the lead frame.

15. The package of claim 13 , wherein the die attach portion comprises four protrusions and the die comprises four corresponding recesses.

16. The package of claim 13 , wherein the lead frame alignment portion comprises two alignment features and the lead frame comprises two openings corresponding with the two alignment features.

17. The package of claim 13 , wherein a cross section of the lead frame alignment portion extends in a first direction substantially perpendicular away from the die, in a second direction substantially parallel away from the die, and in a third direction parallel to the first direction.

18. The package of claim 13 , wherein the alignment feature does not cross a plane formed by the die.

19. The package of claim 13 , wherein a length of the lead frame alignment portion extending along a side of the semiconductor package is longer than one of a length and a width of the die attach portion.

20. The package of claim 13 , wherein the alignment feature is configured to prevent movement of the clip during one of reflow and adhesive die attach curing of the die.

Assignments (3)
RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT REEL 046530, FRAME 0494 Recorded Jun 23, 2023
From: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
To: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC; FAIRCHILD SEMICONDUCTOR CORPORATION
Reel/Frame 064159/0524 →
PATENT SECURITY AGREEMENT Recorded Jul 11, 2018
From: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC; FAIRCHILD SEMICONDUCTOR CORPORATION
To: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
Reel/Frame 046530/0494 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 17, 2017
From: TAN, ARIEL SOTOMAYOR
To: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Reel/Frame 044158/0887 →