KR970072452A - Nonvolatile semiconductor memory device and manufacturing method thereof - Google Patents
Nonvolatile semiconductor memory device and manufacturing method thereof Download PDFInfo
- Publication number
- KR970072452A KR970072452A KR1019960013910A KR19960013910A KR970072452A KR 970072452 A KR970072452 A KR 970072452A KR 1019960013910 A KR1019960013910 A KR 1019960013910A KR 19960013910 A KR19960013910 A KR 19960013910A KR 970072452 A KR970072452 A KR 970072452A
- Authority
- KR
- South Korea
- Prior art keywords
- forming
- gate electrode
- conductive film
- semiconductor substrate
- oxide film
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract 6
- 239000002356 single layer Substances 0.000 claims abstract 3
- 239000010410 layer Substances 0.000 claims abstract 2
- 239000000758 substrate Substances 0.000 claims 11
- 230000002093 peripheral effect Effects 0.000 claims 6
- 238000000206 photolithography Methods 0.000 claims 5
- 238000002955 isolation Methods 0.000 claims 4
- 238000005530 etching Methods 0.000 claims 2
- 238000001259 photo etching Methods 0.000 claims 2
- 229910052581 Si3N4 Inorganic materials 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims 1
- 229910052814 silicon oxide Inorganic materials 0.000 claims 1
- 238000011109 contamination Methods 0.000 abstract 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02551—Group 12/16 materials
- H01L21/02554—Oxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/788—Field effect transistors with field effect produced by an insulated gate with floating gate
- H01L29/7881—Programmable transistors with only two possible levels of programmation
- H01L29/7884—Programmable transistors with only two possible levels of programmation charging by hot carrier injection
Abstract
제작이 용이하고, 오염의 증가를 방지할 수 있는 불휘발성 반도체 기억 장치를 제공한다. 본 발명은 워드라인이 부유 게이트 전극 및 제어 게이트 전극 사이에 절연막을 매개로 이층 구조를 가지는 불휘발성 반도체 기억장치에 있어서, 선택 트랜지스터는 단일층 구조의 게이트 전극을 가진다. 따라서, 본 발명의 불휘발성 반도체 기억장치는 종래와 달리 상기 선택 틀랜지스터의 게이트 전극이 제어 게이트 전극의 단일층으로 형성되어 종래에 버팅 접촉창을 형성하기 위하여 필요하던 영역을 감소시켜서 집적도를 향상시킬 수 있고, 공정을 단순화하는 효과를 가진다.A nonvolatile semiconductor memory device which is easy to manufacture and can prevent an increase in contamination. The present invention is a nonvolatile semiconductor memory device in which a word line has a two-layer structure via an insulating film between a floating gate electrode and a control gate electrode, and the select transistor has a gate electrode of a single layer structure. Accordingly, the nonvolatile semiconductor memory device of the present invention is different from the prior art in that the gate electrode of the selection transistor is formed as a single layer of the control gate electrode, thereby reducing the area conventionally required for forming the butting contact window, And has the effect of simplifying the process.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제4도는 본 발명에 의하여 제작이 용이한 구조를 가지는 불휘발성 반도체 기억 장치를 보여주는 단면도이다.FIG. 4 is a cross-sectional view showing a nonvolatile semiconductor memory device having a structure easy to manufacture by the present invention.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960013910A KR100213199B1 (en) | 1996-04-30 | 1996-04-30 | Fabrication method of a non-volatile semiconductor memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960013910A KR100213199B1 (en) | 1996-04-30 | 1996-04-30 | Fabrication method of a non-volatile semiconductor memory device |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970072452A true KR970072452A (en) | 1997-11-07 |
KR100213199B1 KR100213199B1 (en) | 1999-08-02 |
Family
ID=19457395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960013910A KR100213199B1 (en) | 1996-04-30 | 1996-04-30 | Fabrication method of a non-volatile semiconductor memory device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100213199B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100593749B1 (en) | 2004-10-29 | 2006-06-28 | 삼성전자주식회사 | Method for manufacturing flash memory device and flash memory device manufactured thereby |
KR101458957B1 (en) | 2008-06-17 | 2014-11-10 | 삼성전자주식회사 | Selection transistor and method of fabricating the same |
-
1996
- 1996-04-30 KR KR1019960013910A patent/KR100213199B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100213199B1 (en) | 1999-08-02 |
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