KR100362182B1 - 강유전체 메모리 소자의 제조 방법 - Google Patents
강유전체 메모리 소자의 제조 방법 Download PDFInfo
- Publication number
- KR100362182B1 KR100362182B1 KR1020000073109A KR20000073109A KR100362182B1 KR 100362182 B1 KR100362182 B1 KR 100362182B1 KR 1020000073109 A KR1020000073109 A KR 1020000073109A KR 20000073109 A KR20000073109 A KR 20000073109A KR 100362182 B1 KR100362182 B1 KR 100362182B1
- Authority
- KR
- South Korea
- Prior art keywords
- capacitor
- titanium
- film
- transistor
- memory device
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims abstract description 38
- 239000010936 titanium Substances 0.000 claims abstract description 31
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 28
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 27
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011229 interlayer Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004065 semiconductor Substances 0.000 claims abstract description 10
- 238000000059 patterning Methods 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims 2
- 238000009792 diffusion process Methods 0.000 abstract description 8
- 239000010408 film Substances 0.000 description 38
- 239000010409 thin film Substances 0.000 description 16
- 230000004888 barrier function Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 229910001260 Pt alloy Inorganic materials 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229910000457 iridium oxide Inorganic materials 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 2
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B53/00—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
- H01L21/76861—Post-treatment or after-treatment not introducing additional chemical elements into the layer
- H01L21/76864—Thermal treatment
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76895—Local interconnects; Local pads, as exemplified by patent document EP0896365
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (4)
- 트랜지스터와 캐패시터를 구비하는 강유전체 메모리 소자의 제조 방법에 있어서,소정 공정이 완료된 반도체기판상에 층간절연막을 형성하는 단계;상기 층간절연막을 선택적으로 패터닝하여 상기 트랜지스터와 상기 캐패시터의 소정 부분을 동시에 오픈시키는 콘택홀을 형성하는 단계;상기 콘택홀을 포함한 전면에 티타늄막을 형성하는 단계;상기 티타늄막을 선택적으로 패터닝하여 상기 트랜지스터 상부에만 상기 티타늄막을 잔류시키는 단계;상기 잔류하는 티타늄막을 포함한 층간절연막상에 티타늄나이트라이드, 알루미늄을 순차적으로 형성하는 단계; 및상기 알루미늄과 상기 티타늄나이트라이드를 선택적으로 패터닝하여 상기 트랜지스터와 상기 캐패시터를 접속시키는 금속배선을 형성하는 단계를 포함하여 이루어짐을 특징으로 하는 강유전체 메모리 소자의 제조 방법.
- 제 1 항에 있어서,상기 티타늄막 식각후,질소 또는 아르곤 중 어느 하나의 비활성 가스 또는 진공 중 어느 하나의 분위기와 400℃∼700℃의 온도에서 1분∼1시간 동안 노 열처리하는 단계를 더 포함하는 것을 특징으로 하는 강유전체 메모리 소자의 제조 방법.
- 제 1 항에 있어서,상기 티타늄막 식각후,질소 또는 아르곤 중 어느 하나의 비활성 가스 또는 진공 중 어느 하나의 분위기와 400℃∼800℃의 온도에서 1초∼10 동안 급속열처리하는 단계를 더 포함하는 것을 특징으로 하는 강유전체 메모리 소자의 제조 방법.
- 제 1 항에 있어서,상기 티타늄나이트라이드를 형성한 후, 급속열처리 또는 노 열처리 중 어느 하나의 열처리를 실시하는 것을 특징으로 하는 강유전체 메모리 소자의 제조 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000073109A KR100362182B1 (ko) | 2000-12-04 | 2000-12-04 | 강유전체 메모리 소자의 제조 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000073109A KR100362182B1 (ko) | 2000-12-04 | 2000-12-04 | 강유전체 메모리 소자의 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020043910A KR20020043910A (ko) | 2002-06-12 |
KR100362182B1 true KR100362182B1 (ko) | 2002-11-23 |
Family
ID=27679476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020000073109A Expired - Fee Related KR100362182B1 (ko) | 2000-12-04 | 2000-12-04 | 강유전체 메모리 소자의 제조 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100362182B1 (ko) |
-
2000
- 2000-12-04 KR KR1020000073109A patent/KR100362182B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20020043910A (ko) | 2002-06-12 |
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