DE69221530T2 - Verfahren zum Erhöhen der Kapazität eines DRAMs durch Anodisieren der Polysiliziumschicht einer unteren Kondensatorplatte - Google Patents
Verfahren zum Erhöhen der Kapazität eines DRAMs durch Anodisieren der Polysiliziumschicht einer unteren KondensatorplatteInfo
- Publication number
- DE69221530T2 DE69221530T2 DE69221530T DE69221530T DE69221530T2 DE 69221530 T2 DE69221530 T2 DE 69221530T2 DE 69221530 T DE69221530 T DE 69221530T DE 69221530 T DE69221530 T DE 69221530T DE 69221530 T2 DE69221530 T2 DE 69221530T2
- Authority
- DE
- Germany
- Prior art keywords
- anodizing
- dram
- capacitance
- increasing
- polysilicon layer
- 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 - Lifetime
Links
- 238000007743 anodising Methods 0.000 title 1
- 239000003990 capacitor Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 title 1
- 229920005591 polysilicon Polymers 0.000 title 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
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
-
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/82—Electrodes with an enlarged surface, e.g. formed by texturisation
- H01L28/84—Electrodes with an enlarged surface, e.g. formed by texturisation being a rough surface, e.g. using hemispherical grains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66083—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by variation of the electric current supplied or the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. two-terminal devices
- H01L29/66181—Conductor-insulator-semiconductor capacitors, e.g. trench capacitors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/01—Manufacture or treatment
- H10B12/02—Manufacture or treatment for one transistor one-capacitor [1T-1C] memory cells
- H10B12/03—Making the capacitor or connections thereto
- H10B12/033—Making the capacitor or connections thereto the capacitor extending over the transistor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/96—Porous semiconductor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Semiconductor Memories (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/696,438 US5068199A (en) | 1991-05-06 | 1991-05-06 | Method for anodizing a polysilicon layer lower capacitor plate of a DRAM to increase capacitance |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69221530D1 DE69221530D1 (de) | 1997-09-18 |
DE69221530T2 true DE69221530T2 (de) | 1997-12-18 |
Family
ID=24797075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69221530T Expired - Lifetime DE69221530T2 (de) | 1991-05-06 | 1992-05-04 | Verfahren zum Erhöhen der Kapazität eines DRAMs durch Anodisieren der Polysiliziumschicht einer unteren Kondensatorplatte |
Country Status (3)
Country | Link |
---|---|
US (1) | US5068199A (de) |
EP (1) | EP0513615B1 (de) |
DE (1) | DE69221530T2 (de) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5208176A (en) * | 1990-01-16 | 1993-05-04 | Micron Technology, Inc. | Method of fabricating an enhanced dynamic random access memory (DRAM) cell capacitor using multiple polysilicon texturization |
USRE35420E (en) * | 1991-02-11 | 1997-01-07 | Micron Technology, Inc. | Method of increasing capacitance by surface roughening in semiconductor wafer processing |
US5244842A (en) * | 1991-12-17 | 1993-09-14 | Micron Technology, Inc. | Method of increasing capacitance by surface roughening in semiconductor wafer processing |
KR940011801B1 (ko) * | 1991-03-23 | 1994-12-26 | 삼성전자 주식회사 | 고용량 캐패시터를 포함하는 반도체 장치 및 그의 제조방법 |
US5234857A (en) * | 1991-03-23 | 1993-08-10 | Samsung Electronics, Co., Ltd. | Method of making semiconductor device having a capacitor of large capacitance |
KR920018987A (ko) * | 1991-03-23 | 1992-10-22 | 김광호 | 캐패시터의 제조방법 |
US5138411A (en) * | 1991-05-06 | 1992-08-11 | Micron Technology, Inc. | Anodized polysilicon layer lower capacitor plate of a dram to increase capacitance |
EP0516031A1 (de) * | 1991-05-29 | 1992-12-02 | Ramtron International Corporation | Ferroelektrische Stapelspeicherzelle und Herstellungsverfahren |
KR940007391B1 (ko) * | 1991-08-23 | 1994-08-16 | 삼성전자 주식회사 | 고집적 반도체 메모리장치의 제조방법 |
US5191509A (en) * | 1991-12-11 | 1993-03-02 | International Business Machines Corporation | Textured polysilicon stacked trench capacitor |
EP0553791A1 (de) * | 1992-01-31 | 1993-08-04 | Nec Corporation | Kondensatorelektrode für DRAM und Verfahren zu ihrer Herstellung |
KR960002097B1 (ko) * | 1992-02-28 | 1996-02-10 | 삼성전자주식회사 | 반도체장치의 커패시터 제조방법 |
US5238862A (en) * | 1992-03-18 | 1993-08-24 | Micron Technology, Inc. | Method of forming a stacked capacitor with striated electrode |
EP0578856A1 (de) * | 1992-07-16 | 1994-01-19 | International Business Machines Corporation | Mikro-Kondensator |
US5266514A (en) * | 1992-12-21 | 1993-11-30 | Industrial Technology Research Institute | Method for producing a roughened surface capacitor |
JP2605594B2 (ja) * | 1993-09-03 | 1997-04-30 | 日本電気株式会社 | 半導体装置の製造方法 |
US5696014A (en) * | 1994-03-11 | 1997-12-09 | Micron Semiconductor, Inc. | Method for increasing capacitance of an HSG rugged capacitor using a phosphine rich oxidation and subsequent wet etch |
US5427974A (en) * | 1994-03-18 | 1995-06-27 | United Microelectronics Corporation | Method for forming a capacitor in a DRAM cell using a rough overlayer of tungsten |
US5512768A (en) * | 1994-03-18 | 1996-04-30 | United Microelectronics Corporation | Capacitor for use in DRAM cell using surface oxidized silicon nodules |
US5466627A (en) * | 1994-03-18 | 1995-11-14 | United Microelectronics Corporation | Stacked capacitor process using BPSG precipitates |
US5482885A (en) * | 1994-03-18 | 1996-01-09 | United Microelectronics Corp. | Method for forming most capacitor using poly spacer technique |
US5492848A (en) * | 1994-03-18 | 1996-02-20 | United Microelectronics Corp. | Stacked capacitor process using silicon nodules |
US5482882A (en) * | 1994-03-18 | 1996-01-09 | United Microelectronics Corporation | Method for forming most capacitor using polysilicon islands |
JPH08148280A (ja) * | 1994-04-14 | 1996-06-07 | Toshiba Corp | 半導体装置およびその製造方法 |
US5429979A (en) * | 1994-07-13 | 1995-07-04 | Industrial Technology Research Institute | Method of forming a dram cell having a ring-type stacked capacitor |
US5583368A (en) * | 1994-08-11 | 1996-12-10 | International Business Machines Corporation | Stacked devices |
US5508542A (en) * | 1994-10-28 | 1996-04-16 | International Business Machines Corporation | Porous silicon trench and capacitor structures |
US5885882A (en) * | 1995-07-18 | 1999-03-23 | Micron Technology, Inc. | Method for making polysilicon electrode with increased surface area making same |
JPH1098163A (ja) * | 1996-09-24 | 1998-04-14 | Oki Electric Ind Co Ltd | 半導体記憶装置のキャパシタ構造及びその形成方法 |
US6015986A (en) * | 1995-12-22 | 2000-01-18 | Micron Technology, Inc. | Rugged metal electrodes for metal-insulator-metal capacitors |
KR100198660B1 (ko) * | 1996-05-08 | 1999-06-15 | 구본준 | 메모리 셀 캐패시터 제조방법 |
US6660610B2 (en) | 1996-07-08 | 2003-12-09 | Micron Technology, Inc. | Devices having improved capacitance and methods of their fabrication |
US6190992B1 (en) * | 1996-07-15 | 2001-02-20 | Micron Technology, Inc. | Method to achieve rough silicon surface on both sides of container for enhanced capacitance/area electrodes |
US6528436B1 (en) | 1996-10-21 | 2003-03-04 | Micron Technology. Inc. | Method of forming silicon nitride layer directly on HSG polysilicon |
CN1214542A (zh) * | 1997-09-30 | 1999-04-21 | 西门子公司 | 集成电路制造方法及结构 |
US6476435B1 (en) * | 1997-09-30 | 2002-11-05 | Micron Technology, Inc. | Self-aligned recessed container cell capacitor |
TW364162B (en) * | 1997-12-05 | 1999-07-11 | United Microelectronics Corp | Process for charge storage electrode structure |
US6303956B1 (en) | 1999-02-26 | 2001-10-16 | Micron Technology, Inc. | Conductive container structures having a dielectric cap |
US6358793B1 (en) | 1999-02-26 | 2002-03-19 | Micron Technology, Inc. | Method for localized masking for semiconductor structure development |
US6590246B1 (en) | 2000-02-08 | 2003-07-08 | Micron Technology, Inc. | Structures and methods for improved capacitor cells in integrated circuits |
US7253076B1 (en) | 2000-06-08 | 2007-08-07 | Micron Technologies, Inc. | Methods for forming and integrated circuit structures containing ruthenium and tungsten containing layers |
US6482736B1 (en) * | 2000-06-08 | 2002-11-19 | Micron Technology, Inc. | Methods for forming and integrated circuit structures containing enhanced-surface-area conductive layers |
US6429127B1 (en) | 2000-06-08 | 2002-08-06 | Micron Technology, Inc. | Methods for forming rough ruthenium-containing layers and structures/methods using same |
US6639266B1 (en) | 2000-08-30 | 2003-10-28 | Micron Technology, Inc. | Modifying material removal selectivity in semiconductor structure development |
US6498088B1 (en) * | 2000-11-09 | 2002-12-24 | Micron Technology, Inc. | Stacked local interconnect structure and method of fabricating same |
US6613641B1 (en) * | 2001-01-17 | 2003-09-02 | International Business Machines Corporation | Production of metal insulator metal (MIM) structures using anodizing process |
WO2005006429A1 (de) * | 2003-07-08 | 2005-01-20 | Infineon Technologies Ag | Integrierte schaltungsanordnung mit niederohmigen kontakten und herstellungsverfahren |
US8048755B2 (en) | 2010-02-08 | 2011-11-01 | Micron Technology, Inc. | Resistive memory and methods of processing resistive memory |
US11121209B2 (en) | 2017-03-27 | 2021-09-14 | International Business Machines Corporation | Surface area enhancement for stacked metal-insulator-metal (MIM) capacitor |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61279166A (ja) * | 1985-06-04 | 1986-12-09 | Nec Corp | 混成集積回路用基板 |
JPS6429956A (en) * | 1987-07-24 | 1989-01-31 | Nec Corp | Serial interface circuit |
JP2564316B2 (ja) * | 1987-08-10 | 1996-12-18 | 株式会社日立製作所 | 半導体装置およびその製造方法 |
JPH0726582B2 (ja) * | 1987-09-29 | 1995-03-29 | 三菱電機株式会社 | 内燃機関の燃料噴射時期制御装置 |
US5043780A (en) * | 1990-01-03 | 1991-08-27 | Micron Technology, Inc. | DRAM cell having a texturized polysilicon lower capacitor plate for increased capacitance |
US5005072A (en) * | 1990-01-29 | 1991-04-02 | Micron Technology, Inc. | Stacked cell design for 16-megabit DRAM array having a pair of interconnected poly layers which enfold a single field plate layer and connect to the cell's storage node junction |
-
1991
- 1991-05-06 US US07/696,438 patent/US5068199A/en not_active Expired - Lifetime
-
1992
- 1992-05-04 EP EP92107516A patent/EP0513615B1/de not_active Expired - Lifetime
- 1992-05-04 DE DE69221530T patent/DE69221530T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5068199A (en) | 1991-11-26 |
EP0513615A3 (en) | 1993-05-12 |
DE69221530D1 (de) | 1997-09-18 |
EP0513615A2 (de) | 1992-11-19 |
EP0513615B1 (de) | 1997-08-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69221530T2 (de) | Verfahren zum Erhöhen der Kapazität eines DRAMs durch Anodisieren der Polysiliziumschicht einer unteren Kondensatorplatte | |
DE69613424T2 (de) | Schaltung und Verfahren zur Verminderung der Kompensation eines ferroelektrischen Kondensators durch Anlegung an die Plattenleitung von mehreren Impulsen nach einer Schreiboperation | |
DE69015135D1 (de) | Verfahren zum Herstellen eines Kondensators für DRAM-Zelle. | |
DE69619610T2 (de) | Verfahren zum Herstellen eines Kondensators mit einer ferroelektrischen Schicht für nichtflüchtige Speicherzelle | |
DE69230229T2 (de) | Verfahren für die Ätzung und/oder Einebung eines mehrschichtigen Halbleitersubstrats | |
SE7809966L (sv) | Anordning for metning av kapacitansen hos en kondensator | |
DE68913177D1 (de) | Kapazitiver Drucksensor und Verfahren zum Minimieren der parasitären Kapazität eines kapazitiven Drucksensors. | |
DE59400189D1 (de) | Verfahren zum Herstellen eines Metall-Keramik-Substrates | |
ITMI912535A0 (it) | Procedimento per fabbricare un condensatore a cella di dram e struttura di esso | |
DE69621684D1 (de) | Herstellungsverfahren einer DRAM-Kondensator-Speicherelektrode mit strukturierter Oberfläche | |
FR2317749A1 (fr) | Condensateur a couches multiples et procede pour le fabriquer | |
DE69418985D1 (de) | Verfahren zur Herstellung einer polarisierbaren Elektrode für einen Doppelschichtkondensator | |
DE69224595D1 (de) | Verfahren zum Herstellen einer dielektrischen Anzeigevorrichtung | |
DE69100753T2 (de) | Beschichtungsverfahren und -vorrichtung einer flüssigen schicht. | |
DE69216201T2 (de) | Verfahren zur Steuerung der Stärke eines durch Walzenbeschichtung auf eine Bahn aufgetragenen Films | |
AT357241B (de) | Kondensatordielektrikum mit inneren sperr- schichten und verfahren zu seiner herstellung | |
DE69208619T2 (de) | Verfahren zur Herstellung eines Kondensators mit verzögerter Alterung | |
DE69132190T2 (de) | Verfahren zum Herstellen von gestapelten Verbindungs/kontaktlöchern aus Aluminium für Mehrschichtverbindungen | |
DE69840530D1 (de) | Verfahren zur herstellung von ferroelektrischen dünnschichtkondensatoren mit verbesserter speicherung durch die verwendung von glatten unteren elektrodenstrukturen | |
AT357240B (de) | Kondensatordielektrikum mit inneren sperr- schichten und verfahren zu seiner herstellung | |
DE69300518D1 (de) | Herstellungsverfahren eines keramischen Vielschichtkondensators. | |
DE69220725D1 (de) | Herstellungsverfahren eines Kondensatorelementes für ein DRAM | |
DE69227943D1 (de) | Verfahren zum Herstellen einer Aluminiumnitrid-Mehrschicht-Schaltungsplatte | |
DE69125653T2 (de) | Verfahren zum Herstellen einer Halbleitervorrichtung einschliesslich eines Herstellungsschrittes für ein Muster eines Fotoresistfilms | |
DE50013521D1 (de) | Verfahren zum herstellen einer dram-zelle mit einem grabenkondensator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |