# US 9,520,282 B2 · Method of manufacturing semiconductor device, substrate processing apparatus, and recording medium

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- Number: US 9,520,282 B2
- Document ID: US9520282B2
- Status: Granted
- Kind: B2
- Application number: 14/719,097
- Filed: 2015-05-21
- Published: 2015-09-10
- Granted: 2016-12-13
- Earliest claimed: 2013-03-05
- Assignees: Hitachi Kokusai Electric Inc.
- Applicants: Hitachi Kokusai Electric Inc.
- Inventors: Katsuyoshi Harada; Yoshiro Hirose; Tsukasa Kamakura; Atsushi Sano; Yugo Orihashi
- Web page: https://patentgrep.com/patent/US9520282B2

## CPC

- H10P 14/6339: {deposition by cyclic CVD, e.g. ALD, ALE or pulsed CVD}
- C23C 16/0272: {Deposition of sub-layers, e.g. to promote the adhesion of the main coating}
- C23C 16/24: Deposition of silicon only
- C23C 16/4408: {by purging residual gases from the reaction chamber or gas lines}
- C23C 16/45523: {Pulsed gas flow or change of composition over time}
- C23C 16/52: Controlling or regulating the coating process {(C23C16/45557, C23C16/279 take precedence)}
- H10P 14/416: {of highly doped semiconductor materials, e.g. polysilicon layers or amorphous silicon layers}
- H10P 14/6506: {Formation of intermediate materials}
- H10P 14/668: {the materials being characterised by the deposition precursor materials}
- H10P 72/0402: {Apparatus for fluid treatment (H10P72/0441, H10P72/0448 take precedence)}
- H10P: GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04)

## Abstract

A method of manufacturing a semiconductor device is provided. The method includes treating a surface of an insulating film formed on a substrate by supplying a first gas containing a halogen group to the substrate, and forming a thin film containing a predetermined element on the treated surface of the insulating film by performing a cycle a predetermined number of times. The cycle includes supplying a second gas containing the predetermined element and a halogen group to the substrate, and supplying a third gas to the substrate.

## Claims

### Claim 1

A method of manufacturing a semiconductor device, comprising:
treating a surface of an insulating film formed on a substrate by supplying a first gas containing a halogen group to the substrate; and
forming a thin film containing a predetermined element on the treated surface of the insulating film by performing a cycle a predetermined number of times, the cycle comprising: supplying a second gas containing the predetermined element and a halogen group to the substrate; and supplying a third gas to the substrate,
wherein in the act of treating the surface of the insulating film, the surface of the insulating film is terminated by the halogen group.

### Claim 2 (depends on 1)

The method of claim 1, wherein a temperature of the substrate when treating the surface of the insulating film is set higher than a temperature of the substrate when forming the thin film.

### Claim 3 (depends on 1)

The method of claim 1, wherein the first gas and the second gas comprise the same substance.

### Claim 4 (depends on 1)

The method of claim 1, wherein the first gas comprises at least one selected from a group consisting of a hydrogen chloride gas and a chlorine gas.

### Claim 5 (depends on 1)

The method of claim 1, wherein the first gas further contains the predetermined element.

### Claim 6 (depends on 1)

The method of claim 1, wherein the third gas contains the predetermined element and an amino group.

### Claim 7 (depends on 1)

The method of claim 1, wherein the thin film is composed of the predetermined element.

### Claim 8 (depends on 1)

The method of claim 1, wherein the third gas contains one amino group in one molecule.

### Claim 9 (depends on 1)

The method of claim 1, wherein the third gas comprises at least one selected from a group consisting of a nitrogen-containing gas, an oxygen-containing gas, a hydrogen-containing gas, a carbon-containing gas, a carbon- and nitrogen-containing gas, and a boron-containing gas.

### Claim 10 (depends on 1)

The method of claim 1, wherein the halogen group comprises a chloro group or a fluoro group.

### Claim 11 (depends on 1)

The method of claim 1, wherein the insulating film comprises at least one selected from a group consisting of an oxide film, a nitride film, and an oxynitride film.

### Claim 12

A method of manufacturing a semiconductor device, comprising:
treating a surface of an insulating film formed on a substrate by supplying a first gas containing a halogen group to the substrate; and
forming a thin film containing a predetermined element on the treated surface of the insulating film by performing a cycle a predetermined number of times, the cycle comprising: supplying a second gas containing the predetermined element and a halogen group to the substrate; and supplying a third gas to the substrate,
wherein in the act of treating the surface of the insulating film, a seed layer containing the halogen group is formed on the surface of the insulating film, and
wherein a thickness of the seed layer is 0.5 to 2 Å.

### Claim 13

A method of manufacturing a semiconductor device, comprising:
treating a surface of an insulating film formed on a substrate by supplying a first gas containing a halogen group to the substrate; and
forming a thin film containing a predetermined element on the treated surface of the insulating film by performing a cycle a predetermined number of times, the cycle comprising:
supplying a second gas containing the predetermined element and a halogen group to the substrate; and
supplying a third gas to the substrate,
wherein the first gas and the second gas comprise different substances.

### Claim 14

A non-transitory computer-readable recording medium storing a program that causes a computer to perform a process of:
treating a surface of an insulating film formed on a substrate by supplying a first gas containing a halogen group to the substrate; and
forming a thin film containing a predetermined element on the treated surface of the insulating film by performing a cycle a predetermined number of times, the cycle comprising: supplying a second gas containing the predetermined element and a halogen group to the substrate; and supplying a third gas to the substrate,
wherein in the process of treating the surface of the insulating film, the surface of the insulating film is terminated by the halogen group.
