JPS5773940A - Levelling method of insulation layer - Google Patents
Levelling method of insulation layerInfo
- Publication number
- JPS5773940A JPS5773940A JP15017980A JP15017980A JPS5773940A JP S5773940 A JPS5773940 A JP S5773940A JP 15017980 A JP15017980 A JP 15017980A JP 15017980 A JP15017980 A JP 15017980A JP S5773940 A JPS5773940 A JP S5773940A
- Authority
- JP
- Japan
- Prior art keywords
- film
- substrate
- films
- etching
- constitution
- 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.)
- Pending
Links
- 238000009413 insulation Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- 238000005530 etching Methods 0.000 abstract 3
- 239000000758 substrate Substances 0.000 abstract 3
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 150000004767 nitrides Chemical class 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000001020 plasma etching Methods 0.000 abstract 1
Classifications
-
- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
- H01L21/31055—Planarisation of the insulating layers involving a dielectric removal step the removal being a chemical etching step, e.g. dry etching
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Drying Of Semiconductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
PURPOSE:To decrease unevenness of the surface and permit buried construction of an insulation layer by arranging two layers of insulation films, a film of Si nitride as a principal component for the upper layer, on the uneven surface of the substrate. CONSTITUTION:A thermally oxidized film 2 is formed on a substrate 1, and for example, Al wiring of 1mum thickness is applied on the film 2, and an SiO2 film 41 and an Si nitride film 42 of each thickness of 1mum are attached at low temperature. Then the raised part of the film 41 is etched by 0.5mum by the process of reactive ion etching using a gas mixture of H2 (27%) and CF4. In this etching method, the surface can be leveled because the raised part of the film 42 is etched faster than the recessed part, and etching speed is the same for the films 41 and 42. Also by etching treatment with two layers, the films 41 and 42, arranged as above on the substrate 1 with ditches at the separating region, a constitution of SiO2 film 41 buried in the ditch can be formed evenly without widening or forming birdbeaks.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15017980A JPS5773940A (en) | 1980-10-28 | 1980-10-28 | Levelling method of insulation layer |
DE8181107369T DE3164742D1 (en) | 1980-09-22 | 1981-09-17 | Method of smoothing an insulating layer formed on a semiconductor body |
EP81107369A EP0049400B1 (en) | 1980-09-22 | 1981-09-17 | Method of smoothing an insulating layer formed on a semiconductor body |
US06/304,677 US4377438A (en) | 1980-09-22 | 1981-09-22 | Method for producing semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15017980A JPS5773940A (en) | 1980-10-28 | 1980-10-28 | Levelling method of insulation layer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5773940A true JPS5773940A (en) | 1982-05-08 |
Family
ID=15491225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15017980A Pending JPS5773940A (en) | 1980-09-22 | 1980-10-28 | Levelling method of insulation layer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5773940A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59191354A (en) * | 1983-04-14 | 1984-10-30 | Nec Corp | Manufacture of semiconductor device |
JPS6110240A (en) * | 1984-06-20 | 1986-01-17 | Yokogawa Hewlett Packard Ltd | Manufacture of semiconductor element |
US4587549A (en) * | 1982-06-04 | 1986-05-06 | Tokyo Shibaura Denki Kabushiki Kaisha | Multilayer interconnection structure for semiconductor device |
-
1980
- 1980-10-28 JP JP15017980A patent/JPS5773940A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4587549A (en) * | 1982-06-04 | 1986-05-06 | Tokyo Shibaura Denki Kabushiki Kaisha | Multilayer interconnection structure for semiconductor device |
JPS59191354A (en) * | 1983-04-14 | 1984-10-30 | Nec Corp | Manufacture of semiconductor device |
JPH0226783B2 (en) * | 1983-04-14 | 1990-06-12 | Nippon Electric Co | |
JPS6110240A (en) * | 1984-06-20 | 1986-01-17 | Yokogawa Hewlett Packard Ltd | Manufacture of semiconductor element |
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