KR0176151B1 - 반도체 장치의 소자 분리 방법 - Google Patents
반도체 장치의 소자 분리 방법 Download PDFInfo
- Publication number
- KR0176151B1 KR0176151B1 KR1019950012621A KR19950012621A KR0176151B1 KR 0176151 B1 KR0176151 B1 KR 0176151B1 KR 1019950012621 A KR1019950012621 A KR 1019950012621A KR 19950012621 A KR19950012621 A KR 19950012621A KR 0176151 B1 KR0176151 B1 KR 0176151B1
- Authority
- KR
- South Korea
- Prior art keywords
- material layer
- trench
- semiconductor substrate
- region
- silicon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W10/00—Isolation regions in semiconductor bodies between components of integrated devices
- H10W10/01—Manufacture or treatment
- H10W10/011—Manufacture or treatment of isolation regions comprising dielectric materials
- H10W10/014—Manufacture or treatment of isolation regions comprising dielectric materials using trench refilling with dielectric materials, e.g. shallow trench isolations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/692—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses
- H10P14/6921—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses containing silicon
- H10P14/69215—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses containing silicon the material being a silicon oxide, e.g. SiO2
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/694—Inorganic materials composed of nitrides
- H10P14/6943—Inorganic materials composed of nitrides containing silicon
- H10P14/69433—Inorganic materials composed of nitrides containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P50/00—Etching of wafers, substrates or parts of devices
- H10P50/69—Etching of wafers, substrates or parts of devices using masks for semiconductor materials
- H10P50/691—Etching of wafers, substrates or parts of devices using masks for semiconductor materials for Group V materials or Group III-V materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
- H10P95/06—Planarisation of inorganic insulating materials
- H10P95/062—Planarisation of inorganic insulating materials involving a dielectric removal step
- H10P95/064—Planarisation of inorganic insulating materials involving a dielectric removal step the removal being chemical etching
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- Element Separation (AREA)
Abstract
Description
Claims (6)
- 활성 영역을 가지는 반도체 기판의 전면에 제1물질층을 증착하는 단계; 상기 반도체 기판 상의 소자 분리를 위한 트렌치를 형성하고자 하는 영역의 제1물질층을 식각하여 제1물질층 패턴을 형성하는 단계; 상기 제1물질층 패턴을 마스크로 하여 상기 반도체 기판을 식각하여 트렌치를 형성하되, 상기 반도체 기판 상의 셀 영역에서는 비활성 영역에 트렌치를 형성하고, 상기 반도체 기판 상의 주변 회로 영역에서는 활성 영역의 둘레에 일정폭을 갖는 트렌치를 형성하는 것을 특징으로 하는 단계; 상기 반도체 기판 상에 제2물질층을 증착하여 상기 트렌치 내부를 채우는 단계; 및 상기 제1물질층 패턴을 식각 저지층으로 하여 상기 제2물질층을 식각함으로써 반도체 기판의 전면을 평탄화하는 단계들을 포함하는 것을 특징으로 하는 소자 분리 방법.
- 제1항에 있어서, 상기 제2물질층을 식각함으로써 반도체 기판의 전면을 평탄화하는 단계는 화학 기계적 폴리싱 방법 또는 에치-백(etch-back) 방법을 이용하는 것을 특징으로 하는 소자 분리 방법.
- 제1항에 있어서, 상기 트렌치를 형성하는 단계 후에, 상기 반도체 기판과 동일한 도전형의 불순물을 상기 트렌치 내에 이온 주입하는 단계를 더 구비하는 것을 특징으로 하는 소자 분리 방법.
- 제1항에 있어서, 상기 제1물질층은 실리콘 질화막으로 이루어지며, 상기 제2물질층은 실리콘 산화막으로 이루어지는 것을 특징으로 하느 소자 분리 방법.
- 제4항에 있어서, 상기 실리콘 질화막은 상기 제2물질층의 식각 저지층으로 이용되는 것을 특징으로 하는 소자 분리 방법.
- 제1항에 있어서, 상기 제1물질층 패턴을 마스크로 하여 상기 반도체 기판을 식각하여 트렌치를 형성하는 단계에 있어서, 상기 반도체 기판상의 주변 회로 영역에서는 게이트 배선이 형성될 영역에 트렌치를 더 형성하는 것을 특징으로 하는 소자 분리 방법.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950012621A KR0176151B1 (ko) | 1995-05-19 | 1995-05-19 | 반도체 장치의 소자 분리 방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950012621A KR0176151B1 (ko) | 1995-05-19 | 1995-05-19 | 반도체 장치의 소자 분리 방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960043097A KR960043097A (ko) | 1996-12-23 |
| KR0176151B1 true KR0176151B1 (ko) | 1999-04-15 |
Family
ID=19414964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950012621A Expired - Fee Related KR0176151B1 (ko) | 1995-05-19 | 1995-05-19 | 반도체 장치의 소자 분리 방법 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0176151B1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100480554B1 (ko) * | 1997-05-30 | 2005-05-16 | 삼성전자주식회사 | 반도체장치의트렌치소자분리형성방법 |
-
1995
- 1995-05-19 KR KR1019950012621A patent/KR0176151B1/ko not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100480554B1 (ko) * | 1997-05-30 | 2005-05-16 | 삼성전자주식회사 | 반도체장치의트렌치소자분리형성방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960043097A (ko) | 1996-12-23 |
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