EP1771897A1 - Verfahren zur bildung von speicherschichten - Google Patents
Verfahren zur bildung von speicherschichtenInfo
- Publication number
- EP1771897A1 EP1771897A1 EP05756930A EP05756930A EP1771897A1 EP 1771897 A1 EP1771897 A1 EP 1771897A1 EP 05756930 A EP05756930 A EP 05756930A EP 05756930 A EP05756930 A EP 05756930A EP 1771897 A1 EP1771897 A1 EP 1771897A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- organic compound
- layer
- metal layer
- metal
- organic
- 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.)
- Withdrawn
Links
- 230000015654 memory Effects 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 41
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical group CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 229910052740 iodine Inorganic materials 0.000 claims description 7
- 229910052794 bromium Inorganic materials 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 229910052731 fluorine Inorganic materials 0.000 claims description 6
- 238000007740 vapor deposition Methods 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910002601 GaN Inorganic materials 0.000 claims description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 2
- 125000003342 alkenyl group Chemical group 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000000304 alkynyl group Chemical group 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 125000001072 heteroaryl group Chemical group 0.000 claims description 2
- 239000011630 iodine Substances 0.000 claims description 2
- 238000001465 metallisation Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 125000002560 nitrile group Chemical group 0.000 claims description 2
- 238000000206 photolithography Methods 0.000 claims description 2
- 229910052711 selenium Inorganic materials 0.000 claims description 2
- 239000011877 solvent mixture Substances 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- QAKZFDCCFWBSGH-UHFFFAOYSA-N [Ru].[Sr] Chemical compound [Ru].[Sr] QAKZFDCCFWBSGH-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- XGZGDYQRJKMWNM-UHFFFAOYSA-N tantalum tungsten Chemical compound [Ta][W][Ta] XGZGDYQRJKMWNM-UHFFFAOYSA-N 0.000 description 1
- -1 tungsten nitride Chemical class 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0009—RRAM elements whose operation depends upon chemical change
- G11C13/0014—RRAM elements whose operation depends upon chemical change comprising cells based on organic memory material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/611—Charge transfer complexes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/10—Resistive cells; Technology aspects
- G11C2213/11—Metal ion trapping, i.e. using memory material including cavities, pores or spaces in form of tunnels or channels wherein metal ions can be trapped but do not react and form an electro-deposit creating filaments or dendrites
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
Definitions
- the invention relates to the field of nonvolatile memory cells and in particular to a method for producing such cells.
- the active material is brought between two suitable electrodes.
- a copper-coated wafer may be used as the substrate for this purpose.
- silicon and copper there is an insulating dielectric, for example silicon dioxide or a polymer.
- the substrate is treated with a solution of the electron acceptor.
- a layer of the reaction product for example CuTCNQ
- the acceptor is formed on the copper surface.
- the dielectric does not react with the acceptor.
- the upper electrode is applied and patterned, for. B. also in the form of lines which form an angle of 90 ° with lower copper lines. At the crossing points of the upper and lower tracks arise so-called cross-point cells whose dimensions ⁇ . -> ⁇ ⁇
- copper forms the lower electrode, wherein the upper electrode is made of different materials, such as, for. As aluminum, titanium, tantalum, tantalum nitride, titanium nitride, etc. can be formed.
- the structuring of the electrodes can by means of shadow masks, such. B. by vapor deposition of the electrode material, Druck ⁇ techniques or photolithography done.
- the lateral cell geometry can be arbitrary and is not limited to the above-mentioned cross-point arrangement.
- a CT complex can be prepared by evaporating the acceptor in a vacuum chamber onto the substrate, whereby thin films can also be produced by this process.
- a subsequent heat treatment is necessary, eg. B. on a hot plate or in an oven.
- the unreacted acceptor is removed by means of a solvent.
- the acceptor reacts only with the metal but not with the dielectric so that the excess acceptor can be flushed away from the dielectric.
- the disadvantage of this method is that it produces rough layers which may have a surface roughness of more than 50 nm.
- the method requires a very precise temperature control over the entire contact surface of the heating plate with the substrate, since local temperature fluctuations have different reaction rates. cause inhomogeneity in the layer.
- the object of the present invention is to provide a method which allows the production of CT
- a further object of the invention is to propose a method for producing layers mentioned above, wherein the layers have a thickness of less than 100 nm.
- a metal layer is first deposited onto a substrate and optionally structured. This metal layer is coated with a first organic compound and the coated metal layer thus obtained is treated with the vapor of a second organic compound. The first organic compound and the metal layer interact to form an electroactive layer between the metal and the organic compound that can be used for the nonvolatile memories.
- the substrate on which the metal layer is deposited may be silicon, germanium, gallium arsenide, gallium nitride, a polymer, ceramic glass or metal.
- the substrate may also be any material containing any compound of silicon, germanium or gallium.
- This substrate may also be an already processed material and one or more layers of contacts, tracks, iso- lier füren and other microelectronic components ent hold.
- the substrate is silicon, which has already been processed in accordance with front-end off-line (FEOL), that is, already contains electrical components, such as transistors, capacitors, etc.
- FETOL front-end off-line
- An insulating layer is preferably present between the substrate and the metal layer, and in particular when the substrate is electrically conductive. However, between the substrate and the metal layer there may also be several arbitrary layers.
- the substrate can serve only as a carrier material or else fill an electrical function (evaluation, control). For the latter case, there are electrical contacts between the substrate and the electrodes which are applied to the substrate. These electrical contacts are, for example, contact holes (vias) filled with an electrical conductor.
- the metal is copper.
- the metal layer may also be part of an electrode, which may also have a plurality of layers, wherein at least one layer consists of copper.
- the other layers can z.
- other layers of z for example, silicon, titanium nitride silicon, silicon oxynitride, silicon oxide, silicon carbide, silicon nitride or silicon carbonitride may be present.
- the metal layer may be in any form, such as.
- Example, plate be film, which applied by vacuum techniques or electrolytic deposition on a substrate metal layer.
- a thin film of a metal is preferred was applied to the above substrate. This can be z.
- the metal can also be structured, for which lithography, printing or vapor deposition through a shadow mask are suitable.
- the first organic compound coating the metal layer is preferably selected from the group consisting of
- R 1, R 2 , R 3 , R 4 , R 5 , Re, R 7 , and R 8 independently of one another may have the following meanings:
- alkyl alkenyl, alkynyl, O-alkyl, O-alkenyl, O-alkynyl, S-alkyl, S-alkenyl, S-alkynyl, OH, SH, aryl, heteroaryl , O-aryl, S-aryl, NH-aryl, O-heteroaryl, S-heteroaryl, CN, NO 2 , - (CF 2 ) n -CF 3 , -CF ((CF 2 ) n CF 3 ) 2, - Q- (CF 2 J n -CF 3 , -CF (CF 3 ) 2 / -C (CF 3 J 3 and
- n 0 to 10;
- Rg, Rio, Rn, R12 are independently: F, Cl, Br, I, CN, NO 2 ;
- Ri3 / Ri4 / Ri5 / Ri6, R ⁇ 7 are independently H, F, Cl, Br, I, CN, NO 2
- Xi and X 2 are independent of each other:
- the organic compound is TCNQ.
- the coating of the metal layer with the first organic compound can be carried out in a vacuum chamber, wherein pressure and temperature are regulated.
- the exact conditions are z. B. in DE 103 55 561.7 described.
- the vapor deposition is preferably carried out under inert gas, such as noble gases or nitrogen, with other gases as required, such as. B. oxygen can be added.
- the substrate holder can be heated or cooled. Preferred temperatures for the Sub ⁇ strathalter are in the range from -20 0 C to 100 0 C, with the temperature range between 20 0 C and 40 0 C is particularly preferred.
- the substrate comes into a second tempered chamber, which is saturated or saturated with the vapor of the second organic compound.
- This treatment mainly allows the reaction between the metal and the acceptor.
- the constant vapor temperature and vapor concentration surprisingly allow a very uniform reaction.
- the pressure at which treatment is performed is in the range of 300 torr to 2000 torr.
- the treatment time is preferably between 30 seconds and 15 minutes.
- the temperature-controlled chamber can be integrated into a vacuum system.
- glass equipment eg. B. reactors or desiccators serve as a chamber.
- the second organic compound is an organic solvent or a mixture of the various solvents.
- Particularly preferred according to the invention is a solvent which has a nitrile group.
- acetonitrile either as a single treatment reagent or in a solvent mixture, with wei ⁇ n organic solvents.
- the method according to the invention offers the advantage that the layer thickness is precisely controlled, that the layer is homogeneous in itself and that the surface roughness of the layer is very low.
- a particular advantage of the process is that in cases where the first organic compound has a lower evaporation or sublimation temperature than the temperature at which the reaction takes place between the metal layer and the organic compound Interaction between the metal layer and the organic compound can not be brought about on a hot plate or in an oven. There are also organic compounds which decompose at the temperature at which the reaction between the metal layer and the first organic compound takes place. By the method according to the invention, however, it is possible to bring these first organic compounds to react with the metal layer to a
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Nanotechnology (AREA)
- Materials Engineering (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Manufacturing & Machinery (AREA)
- Physical Vapour Deposition (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004037151A DE102004037151A1 (de) | 2004-07-30 | 2004-07-30 | Verfahren zur Bildung von Speicherschichten |
| PCT/EP2005/053144 WO2006013138A1 (de) | 2004-07-30 | 2005-07-01 | Verfahren zur bildung von speicherschichten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1771897A1 true EP1771897A1 (de) | 2007-04-11 |
Family
ID=34971457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05756930A Withdrawn EP1771897A1 (de) | 2004-07-30 | 2005-07-01 | Verfahren zur bildung von speicherschichten |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20070164276A1 (de) |
| EP (1) | EP1771897A1 (de) |
| CN (1) | CN101015072A (de) |
| DE (1) | DE102004037151A1 (de) |
| WO (1) | WO2006013138A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4371883A (en) * | 1980-03-14 | 1983-02-01 | The Johns Hopkins University | Current controlled bistable electrical organic thin film switching device |
| US4652894A (en) * | 1980-03-14 | 1987-03-24 | The Johns Hopkins University | Electrical organic thin film switching device switching between detectably different oxidation states |
| DD231263A3 (de) * | 1983-05-20 | 1985-12-24 | Wolfgang Berger | Hochkapazitives bauelement |
| US4806995A (en) * | 1987-02-02 | 1989-02-21 | Olin Corporation | Optical and electrical switching devices and a polymer composition containing pendant organic charge transfer salt moieties useful in switching devices |
| US5216661A (en) * | 1991-07-22 | 1993-06-01 | The Johns Hopkins University | Electron density storage device using a stm |
| JP2003283004A (ja) * | 2002-03-26 | 2003-10-03 | Rohm Co Ltd | スイッチング素子およびその製造方法 |
| DE10355561A1 (de) * | 2003-11-28 | 2005-06-30 | Infineon Technologies Ag | Halbleiteranordnung mit nichtflüchtigen Speichern |
-
2004
- 2004-07-30 DE DE102004037151A patent/DE102004037151A1/de not_active Ceased
-
2005
- 2005-07-01 WO PCT/EP2005/053144 patent/WO2006013138A1/de not_active Ceased
- 2005-07-01 EP EP05756930A patent/EP1771897A1/de not_active Withdrawn
- 2005-07-01 CN CNA2005800254488A patent/CN101015072A/zh active Pending
-
2007
- 2007-01-10 US US11/621,756 patent/US20070164276A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006013138A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006013138A1 (de) | 2006-02-09 |
| DE102004037151A1 (de) | 2006-03-23 |
| US20070164276A1 (en) | 2007-07-19 |
| CN101015072A (zh) | 2007-08-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20070124 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SEZI, RECAI Inventor name: WALTER, ANDREAS Inventor name: ENGL, REIMUND Inventor name: SCHUMANN, JOERG Inventor name: MALTENBERGER, ANNA |
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Inventor name: SCHUMANN, JOERG Inventor name: SEZI, RECAI Inventor name: MALTENBERGER, ANNA Inventor name: WALTER, ANDREAS Inventor name: ENGL, REIMUND |
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Inventor name: MALTENBERGER, ANNA Inventor name: SCHUMANN, JOERG Inventor name: SEZI, RECAI Inventor name: WALTER, ANDREAS Inventor name: ENGL, REIMUND |
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