IP Library › Granted Patent US 10,586,784
Granted Patent B2
US 10,586,784 · App. 16/251,522 · Granted Mar 10, 2020

Apparatus and method for multi-die interconnection

Inventors: Jean-Philippe Fricker (Los Altos, CA); Philip Ferolito (Los Altos, CA)
Assignee: Cerebras Systems Inc.
H01L25/0655H01L21/4889H01L23/5386H01L23/562H01L23/564H01L23/585H01L24/43H01L24/48H01L24/94H01L2224/48137
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Quick Facts
Patent No.
US 10,586,784
App. No.
16/251,522
Granted
Mar 10, 2020
Kind
B2
Abstract

A semiconductor and a method of fabricating the semiconductor having multiple, interconnected die including: providing a semiconductor substrate having a plurality of disparate die formed within the semiconductor substrate, and a plurality of scribe lines formed between pairs of adjacent die of the plurality of disparate die; and fabricating, by a lithography system, a plurality of inter-die connections that extend between adjacent pair of die of the plurality of die.

Claims (33)

1. A semiconductor having multiple, interconnected die, the semiconductor comprising:

a semiconductor substrate;

a plurality of die fabricated within the semiconductor substrate by one or more lithography processes applied to the semiconductor substrate;

a circuit layer formed at each of the plurality of die;

a plurality of inter-die connections that communicatively connect disparate die of the plurality of die formed within the semiconductor substrate, wherein each of the plurality of inter-die connections extends between pairs of disparate die of the plurality of die, wherein the plurality of die include a subset of peripheral die defining a periphery of the semiconductor substrate, wherein at least one side of each of a second subset of peripheral die are formed without inter-die connections.

2. The semiconductor according to claim 1 , wherein:

each of the plurality of die is fabricated from a material from the semiconductor substrate.

3. The semiconductor according to claim 1 , wherein:

the semiconductor substrate comprises a singular, integrally continuous form, and

by the one or more lithography processes applied to the semiconductor substrate, the plurality of die are formed integrally and continuously with the singular, integrally continuous form of the semiconductor wafer.

4. The semiconductor according to claim 1 , further comprising:

a plurality of scribe lines formed within a material of the semiconductor substrate, wherein each scribe line of the plurality of scribe lines is positioned at the substrate between each pair of adjacent die of the plurality of die,

wherein each of the plurality of inter-die connections extends over one scribe line of the plurality of scribe lines positioned between each pair of adjacent die of the plurality of die.

5. The semiconductor according to claim 1 , wherein:

each of the plurality of die fabricated by the one or more lithography processes applied to the semiconductor substrate remain integral within the semiconductor substrate and are not cut from the semiconductor substrate.

6. The semiconductor according to claim 1 , wherein:

each of the plurality of inter-die connections comprises a single trace or a single wire that connects only two die of the plurality of die along the semiconductor substrate.

7. The semiconductor according to claim 1 , wherein:

each of the plurality of die comprises a protective barrier comprising a seal ring that encompasses a periphery of each of the plurality of die.

8. The semiconductor according to claim 1 , wherein:

each of the plurality of inter-die connections comprises a conductive material that enables a transmission of signals thereon between circuit layers of pairs of die of the plurality of die.

9. The semiconductor according to claim 1 , wherein:

a seal ring extends between the circuit layer of each of the plurality of die and intersecting edges of side faces and a top surface of each of the plurality of die.

10. The semiconductor according to claim 1 , wherein

the plurality of die include:

(i) a subset of interior die defining an interior of the semiconductor substrate, wherein first subset of interior die have inter-die connections with adjacent die along all sides of the first subset of interior die.

11. An integrated circuit comprising:

an integrated circuit substrate;

a plurality of die fabricated within the integrated circuit substrate by one or more lithography processes applied to the integrated circuit substrate;

a circuit layer formed at each of the plurality of die;

a plurality of inter-die connections that communicatively connect distinct pairs of die of the plurality of die, wherein:

each of the plurality of inter-die connections extends between the distinct pairs of disparate die of the plurality of die, and

the plurality of die include a subset of peripheral die defining a periphery of the integrated circuit substrate, wherein at least one side of each of a second subset of peripheral die are formed without inter-die connections.

Assignments (2)
SECURITY INTEREST Recorded Jun 18, 2026
From: CEREBRAS SYSTEMS INC.
To: MORGAN STANLEY SENIOR FUNDING, INC., AS THE COLLATERAL AGENT
Reel/Frame 075845/0844 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 18, 2019
From: FRICKER, JEAN-PHILIPPE; FEROLITO, PHILIP
To: CEREBRAS SYSTEMS INC.
Reel/Frame 048058/0092 →
Continuity (3)
Continuation 16019882 · Jun 27, 2018
Provisional Application 62536063 · Jul 24, 2017
Related Publication 20190157243A1 · May 23, 2019