# US 7,411,773 B2 · Electrostatic chucking device and manufacturing method thereof

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- Number: US 7,411,773 B2
- Document ID: US7411773B2
- Status: Granted
- Kind: B2
- Application number: 10/774,472
- Filed: 2004-02-10
- Published: 2004-08-19
- Granted: 2008-08-12
- Earliest claimed: 2000-08-16
- Assignees: Creative Technology Ltd; Kawamura Sangyo Co., Ltd.
- Inventors: Yoshiaki Tatsumi; Kinya Miyashita
- Web page: https://patentgrep.com/patent/US7411773B2

## CPC

- H10P 72/722: {Details of electrostatic chucks}
- H10P 72/72: using electrostatic chucks
- Y10T 279/23: with magnetic or electrostatic means
- Y10T 428/263: Coating layer not in excess of 5 mils thick or equivalent
- Y10T 428/269: including synthetic resin or polymer layer or component
- Y10T 428/31721: Of polyimide
- H10P: GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An electrostatic chucking device having a laminated structure formed by sequentially laminating a first insulation layer, an electrode layer, and a second insulation layer on a metal substrate. The first and second insulation layers are formed from polyimide films. At least one adhesion layer is provided between the metal substrate and the first insulation layer, and is a thermoplastic polyimide-based adhesive film having a film thickness of 5 to 50 μm.

## Claims

### Claim 1

An electrostatic chucking device having a laminated structure which is formed by sequentially laminating a first insulation layer, an electrode layer and a second insulation layer on an aluminum alloy metal substrate, wherein the first insulation layer and the second insulation layer are constituted of polyimide films, and an adhesive layer between the aluminum alloy metal substrate and the first insulation layer wherein the adhesive layer includes a diamino siloxane-modified thermoplastic polyimide-based adhesive film having a film thickness of 5 to 50 μm and a compression bonding temperature of 100 to 200° C.

### Claim 2 (depends on 1)

An electrostatic chucking device according to claim 1, wherein the adhesive layer between the aluminum alloy metal substrate and the first insulation layer, an adhesive layer between the first insulation layer and the electrode layer and an adhesive layer between the electrode layer and the second insulation layer each includes the diamino siloxane-modified thermoplastic polyimide-based adhesive film having the film thickness of 5 to 50 μm and the compression bonding temperature of 100 to 200° C.

### Claim 3 (depends on 1)

An electrostatic chucking device according to claim 1, wherein the polyimide films which constitute the first insulation layer and the second insulation layer have a film thickness of 20 to 50 μm.

### Claim 4 (depends on 2)

An electrostatic chucking device according to claim 2, wherein the polyimide films which constitute the first insulation layer and the second insulation layer have a film thickness of 20 to 50 μm.