# US 10,777,429 B2 · Method of production of a structure including a high thermal conductivity substrates and devices on it

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- Number: US 10,777,429 B2
- Document ID: US10777429B2
- Status: Granted
- Kind: B2
- Application number: 16/162,603
- Filed: 2018-10-17
- Published: 2019-05-23
- Granted: 2020-09-15
- Earliest claimed: 2017-10-24
- Assignees: Icdat Ltd.
- Applicants: Icdat Ltd. 5
- Inventors: Joseph Kaplun; Adam Hoffman
- Web page: https://patentgrep.com/patent/US10777429B2

## CPC

- H10W 95/00: Packaging processes not covered by the other groups of this subclass
- H10P 72/74: {using temporarily an auxiliary support}
- H10W 40/10: Arrangements for heating
- H10W 90/00: Package configurations
- H10D 30/015: {of FETs having heterojunction interface channels or heterojunction gate electrodes, e.g. HEMT}
- H10D 64/254: {for lateral devices wherein the source or drain electrodes extend entirely through the semiconductor bodies, e.g. via-holes for back side contacts}
- H10P 72/7412: {the auxiliary support including means facilitating the separation of a device or wafer from the auxiliary support}
- H10P 72/7428: {used to support diced chips prior to mounting}
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10P: GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES

## Abstract

There may be provided a method for generating a structure, the method may include receiving multiple donor structures that comprise multiple mesas; placing the multiple donor structures on a substrate that lacks a semiconductor layer that covers the entire substrate; and performing a manufacturing process that comprises coupling the multiple mesas to the substrate.

## Claims

### Claim 1

A method for generating a structure, the method comprises:
receiving multiple donor structures that comprise multiple mesas; wherein each mesa comprises at least a portion of an active semiconductor device;
placing the multiple donor structures on a substrate that lacks a semiconductor layer that covers the entire substrate; and
performing a manufacturing process that comprises coupling the multiple mesas to the substrate.

### Claim 2 (depends on 1)

The method according to claim 1 wherein the performing of the manufacturing process comprises forming a photoresist layer above the multiple mesas; and removing the photoresist layer thereby exposing the multiple mesas.

### Claim 3 (depends on 1)

The method according to claim 1 wherein the performing of the manufacturing process comprises forming masking elements above the multiple donor structures and removing the masking elements from the multiple donor structures.

### Claim 4 (depends on 1)

The method according to claim 1 wherein the performing of the manufacturing process comprises forming structural elements and electrically coupling the multiple mesas to structural elements.

### Claim 5 (depends on 1)

The method according to claim 1 wherein the performing of the manufacturing process comprises electrically coupling at least some of the multiple mesas to each other.

### Claim 6 (depends on 1)

The method according to claim 1 wherein the performing of the manufacturing process comprises performing front size process that comprises adding front side processing structural elements.

### Claim 7 (depends on 1)

The method according to claim 1 wherein the performing of the manufacturing process comprises performing a backside process that comprises adding backside processing structural elements.

### Claim 8 (depends on 1)

The method according to claim 1 wherein an aggregate size of the multiple mesas is less than ten percent of an area of the substrate.

### Claim 9 (depends on 1)

The method according to claim 1 wherein an aggregate size of the multiple mesas is less than one percent of an area of the substrate.

### Claim 10 (depends on 1)

The method according to claim 1 wherein the substrate exhibits a thermal conductivity that exceeds 250 Watt/(Kelvin*meter).

### Claim 11 (depends on 1)

The method according to claim 1 wherein the substrate exhibits a thermal conductivity that exceeds 1000 Watt/(Kelvin*Meter).

### Claim 12 (depends on 1)

The method according to claim 1 wherein the substrate is a monocrystalline substrate.

### Claim 13 (depends on 1)

The method according to claim 1 wherein the substrate is made of one or more materials that differ from silicon.

### Claim 14 (depends on 1)

The method according to claim 1 comprises generating the multiple donor structures.

### Claim 15

A method for generating a structure, the method comprises: receiving multiple donor structures that comprise multiple mesas; placing the multiple donor structures on a substrate that lacks a semiconductor layer that covers the entire substrate; and performing a manufacturing process that comprises coupling the multiple mesas to the substrate; wherein each donor structure comprises a sacrificial layer.

### Claim 16

A structure that comprises mesas that are electrically coupled to a substrate, wherein the structure is manufactured by (a) receiving multiple donor structures that comprise multiple mesas; wherein each mesa comprises at least a portion of an active semiconductor device; (b) placing the multiple donor structures on a substrate that lacks a semiconductor layer that covers the entire substrate; and (c) performing a manufacturing process that comprises coupling the multiple mesas to the substrate.
