Abstract:
PROBLEM TO BE SOLVED: To obtain an optical memory medium based on completely novel memory principle and to obtain an optical memory device using this medium by recording data corresponding to characteristics of an amorphous solid selected from a group of materials each having refractive index and reflectance. SOLUTION: The amorphous solid is selected from a group of diamond-like carbon, silicon carbide, boron carbide, boron nitride, amorphous silicon and amorphous germanium, and the solid contains hydrogen by up to 50 atm% with covalent bonds. A specified region of the amorphous solid having a first refractive index and having atoms with covalent bonds is heated with laser light to change the refractive index in the heated area to a second refractive index. Thus, two states can be produced to correspond the memory of data without dissolving or crystallizing the amorphous solid. The density of the solid is changed by heating, which accompanies changes in the refractive index and reflectance.
Abstract:
PROBLEM TO BE SOLVED: To provide a thermally stable low dielectric constant material having a low internal stress and a dielectric constant of not higher than 2.8. SOLUTION: A low dielectric constant material has a matrix made of Si, C, O, and H; a plurality of nanometre-scale holes, and a dielectric constant of not higher than 2.8. The low dielectric constant material has an FTIR spectrum which is divided into two peaks in absorption band of Si-O between 1,000 cm -1 and 1,100 cm -1 , and has not absorption peak of Si-H between 2,150 cm -1 and 2,250 cm -1 . COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
A method for fabricating a thermally stable ultralow dielectric constant film comprising Si, C, O and H atoms in a parallel plate chemical vapor deposition process utilizing plasma enhanced chemical vapor deposition ("PECVD") process is disclosed. Electronic devices containing insulating layers of thermally stable ultralow dielectric constant materials that are prepared by the method are further disclosed. To enable the fabrication of thermally stable ultralow dielectric constant film, specific precursor materials are used, such as, cyclic siloxanes and organic molecules containing ring structures, for instance, tetramethylcycloterasiloxane and cyclopentene oxide. To stabilize plasma in the PECVD reactor and thereby improve uniformity of the deposited film, CO2 is added to TMCTS as a carrier gas, or CO2 or a mixture of CO2 and O2 are added to the PECVD reactor.
Abstract:
PROBLEM TO BE SOLVED: To provide an ultralow dielectric material having an dielectric constant of approximate 2.6 or less and a method for preparing the same. SOLUTION: A thermally stable ultralow dielectric constant film, which contains an Si atom, C atom, O atom, and H atom, has a covalent bond three dimensional network structure, and has a dielectric constant of 2.6 or less, is provided. Moreover, the dielectric constant film can have a covalent bond ring network too. The covalent bond three dimensional network structure includes an Si-O covalent bond, Si-C bond, Si-H bond, C-H covalent bond, and C-C covalent bond, and if necessary, it can include an F and N. On the film, if necessary, a Ge atom is substituted for a part of the Si atom. The film has a thickness of 1.3 micrometer or less and has a crack growth rate in water of 10 -10 meter/sec or less. Moreover, a back end of line (BEOL) mutual connection structure including the film as a BEOL insulator, cap, or hard mask layer is provided too. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a high performance mutual connection structure whereto one or a plurality of fluorinated dielectric insulation layers and one or a plurality of conductive wiring levels electrically connected by a conductive via are provided, and a wiring level and a via are completely insulated from a fluorinated dielectric by at least one fluorine resistance capping material and/or a fluorine resistance linear material. SOLUTION: One or a plurality of fluorinated dielectric insulation layers 250 and one or a plurality of conductive wiring pattern layers 50, 60 electrically connected by conductive vias 70, 80 are provided. A conductive wiring pattern and a via are completely insulated from a fluorinated dielectric insulation layer by at least one fluorine resistance capping material selected from a group comprising Ag, Al, Al-Ti, Co, Cr, Cu, In, Ir, Mg, Mn, Pd, Pt, Sn, and oxide, nitride and silicide thereof and a mixture thereof, Si-containing DLC and Si-O containing DLC.
Abstract:
HIGHLY CODUCTING ORGANOMETALLIC POLYMERS This specification discloses highly conducting organometallic polymers having units chosen from the following recurring units and where each M is same or different and is a multivalent metal, and method for preparing the above polymers.
Abstract:
of the Invention Organic molecules can be coupled via their selenocarbonyl derivatives. Generally, the synthesis can be described by the following reaction equation: where can be a cyclic or heterocyclic organic compound and R can be alkoxy, phenoxy or phenyl, preferably CH3O, C2H5O, C6H5O, C6H5 and the like. The reaction is usually carried out in a refluxing solvent, the choice of the solvent being determined by the stability and by the ease of coupling of a particular substrate. Groups that tend to stabilize the selenocarbonyl require higher boiling solvents and longer refluxing times. Aromatic solvents, such as benzene or toluene are well-suited for the coupling reaction. In some cases, refluxing the substrate in the alkoxy-phosphorus base as solvent may be advantageous. This new coupling procedure permits the synthesis of the hitherto unknown compounds: tetraselenofulvalene (TScF), the selenium analogue of tetrathiofulvalene (TTF), and disolenodithiofulvalene (DSeDTF). Highly conducting char?e transfer salts of tetraselenofulvalere and diselenodithiofulvalene with totracyano-p-quinodimethane have also been prepared. The materials of this invention are useful in the organic electronic devices described the United States Patent No. 3,953,874, issued April 27, 1970, to Arieh Aviram et al. and assigned to the same assignee as is the present application.
Abstract:
The invention is directed to novel heterofulvalence geminal dithioiate compounds and their selenium and tellurium analogs having the general formula Wherein X is selected from S, Se and Te. R is selected from hydrogen, alkyl, aryl, or together form a ring of carbon atoms, cyano and dithiocarbonate groups and R1 is selected from alkali, alkaline earth and transition metals, alkyl, aryl, cyclic and heterocyclic groups. A novel method for preparing these compounds is also provided.
Abstract:
Organic molecules can be coupled via their selenocarbonyl derivatives. Generally, the synthesis can be described by the following reaction equation:
Abstract:
There is provided a thermally stable ultralow dielectric constant film comprising Si, C, O and H atoms and having a covalently bonded tri-dimensional network structure and a dielectric constant of not more than 2.6. The dielectric constant film may additionally have a covalently bonded ring network. The covalently bonded tri-dimensional (i.e., three dimensional) network structure comprises Si-O, Si-C, Si-H, C-H and C-C covalent bonds and may optionally contain F and N. In the film, the Si atoms may optionally be partially substituted with Ge atoms. The dielectric constant film has a thickness of not more than 1.3 micrometers and a crack propagation velocity in water of less than 10 meters per second. There is further provided a back-end-of-the-line (BEOL) interconnect structure comprising the inventive dielectric film as a BEOL insulator, cap or hardmask layer.