IP Library Granted Patent US 8,426,968
Granted Patent B2
US 8,426,968 · App. 13/169,384 · Granted Apr 23, 2013

High speed, high density, low power die interconnect system

Inventor: Ernest E. Hollis (Bedford, MA)
Assignee: Sagacious Investment Group L.L.C.
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Quick Facts
Patent No.
US 8,426,968
App. No.
13/169,384
Granted
Apr 23, 2013
Kind
B2
Abstract

A system for interconnecting at least two die each die having a plurality of conducting layers and dielectric layers disposed upon a substrate which may include active and passive elements. In one embodiment there is at least one interconnect coupling at least one conducting layer on a side of one die to at least one conducting layer on a side of the other die. Another interconnect embodiment is a slug having conducting and dielectric layers disposed between two or more die to interconnect between the die. Other interconnect techniques include direct coupling such as rod, ball, dual balls, bar, cylinder, bump, slug, and carbon nanotube, as well as indirect coupling such as inductive coupling, capacitive coupling, and wireless communications. The die may have features to facilitate placement of the interconnects such as dogleg cuts, grooves, notches, enlarged contact pads, tapered side edges and stepped vias.

Claims (41)

1. An interconnect system for coupling between die, the interconnect system comprising:

a first die including a plurality of first die conducting layers and a plurality of first die dielectric layers;

a second die including a plurality of second die conducting layers and a plurality of second die dielectric layers; and

a slug disposed between the first die and the second die and coupling the first die to the second die, wherein:

the slug includes a slug conducting layer and a slug dielectric layer,

the slug conducting layer is coupled on a first end to at least one of the plurality of first die conducting layers on a side of the first die,

and a second end of the slug conducting layer is coupled to at least one of the plurality of second die conducting layers on a side of the second die.

2. The interconnect system of claim 1 , wherein at least one of the first die or the second die comprises an angled die edge, and wherein the slug further comprises a corresponding angled slug edge.

3. The interconnect system of claim 1 , wherein the slug comprises at least one of dogleg cuts, grooves, notches, contacts, tapered side edges, or terracing.

4. The interconnect system of claim 1 , further comprising an interconnect including at least one of a rod, a ball, dual balls, a bar, a cylinder, a bump, conductive contact pads, or a carbon nanotube.

5. The interconnect system of claim 1 , further comprising an interconnect including at least one of an inductive interconnect, a capacitive interconnect, or a wireless interconnect.

6. The interconnect system of claim 1 , wherein the slug further comprises at least one programmable link.

7. A slug comprising:

a top surface;

a bottom surface smaller than the top surface;

a first lateral side between an edge of the top surface and an edge of the bottom surface, wherein the first lateral side is tapered;

a second lateral side between an edge of the top surface and an edge of the bottom surface;

a first plurality of contacts on the first lateral side;

a second plurality of contacts on the second lateral side; and

a plurality of conducting lines extending between the first plurality of contacts and the second plurality of contacts.

8. The slug of claim 7 , wherein one of the first plurality of contacts is electrically connected to at least two of the second plurality of contacts.

9. The slug of claim 7 , wherein one of the second plurality of contacts is electrically connected to at least two of the first plurality of contacts.

10. The slug of claim 7 , wherein at least one of the first plurality of contacts comprises a flange.

11. The slug of claim 7 , wherein at least one of the plurality of conducting lines comprises a mask-programmable link.

12. The slug of claim 7 , wherein at least two of the plurality of conducting lines comprises a mask-programmable link.

13. The slug of claim 7 , wherein at least one of the plurality of conducting lines is diagonally-oriented.

14. The slug of claim 7 , wherein the second lateral side is tapered.

15. A slug comprising:

a top surface;

a bottom surface smaller than the top surface;

a first lateral side between an edge of the top surface and an edge of the bottom surface, wherein the first lateral side is tapered;

a second lateral side between an edge of the top surface and an edge of the bottom surface;

a plurality of terraced layers decreasing in size between the top surface and the bottom surface, wherein the plurality of terraced layers form a plurality of steps on the first lateral side;

a first plurality of contacts on the first lateral side;

a second plurality of contacts on the second lateral side; and

a plurality of conducting lines extending between the first plurality of contacts and the second plurality of contacts.

16. The slug of claim 15 , wherein the plurality of terraced layers form a plurality of steps on the second lateral side.

17. The slug of claim 15 , wherein at least one of the first plurality of contacts is exposed on a bottom surface of at least one of the plurality of steps on the first lateral side.

18. The slug of claim 15 , wherein at least one of the plurality of conducting lines comprises a programmable link.

19. The slug of claim 15 , wherein at least one of the plurality of conducting lines is diagonally-oriented.

20. The slug of claim 15 , wherein one of the first plurality of contacts is electrically connected to at least two of the second plurality of contacts.

Assignments (5)
MERGER Recorded Oct 21, 2015
From: SAGACIOUS INVESTMENT GROUP L.L.C.
To: GULA CONSULTING LIMITED LIABILITY COMPANY
Reel/Frame 036849/0688 →
CORRECTION TO RECORDATION COVER SHEET OF THE ASSIGNMENT RECORDED AT REEL 027793 FRAME 0756 ON 3/5/2012. CORRECTION TO THE SPELLING OF ASSIGNEE'S NAME. Recorded Apr 5, 2012
From: LUDEROUS GROUP L.L.C.
To: SAGACIOUS INVESTMENT GROUP L.L.C.
Reel/Frame 028003/0075 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 8, 2012
From: HOLLIS, ERNEST E.
To: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.
Reel/Frame 027825/0918 →
CHANGE OF NAME Recorded Mar 1, 2012
From: LUDEROUS GROUP L.L.C.
To: SEGACIOUS INVESTMENT GROUP L.L.C.
Reel/Frame 027793/0756 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2012
From: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION, INC.
To: LUDEROUS GROUP L.L.C.
Reel/Frame 027525/0169 →
Continuity (2)
Division 11459081 · Jul 21, 2006
Related Publication 20110254162A1 · Oct 20, 2011