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5309000 Diamond films with heat-resisting ohmic electrodes  
A is a heat-resisting ohmic electrode on diamond film, including: a p-type semiconducting diamond film; a boron-doped diamond layer provided on the semiconducting diamond film; and an electrode...
5304249 Suscepter device for the preparation of a diamond film-coated body  
In forming a diamond film on a surface of substrate by means of plasma method, there is employed in a plasma reacting chamber a supporting member having a top surface for placing the substrate so...
5302231 CVD diamond by alternating chemical reactions  
The present invention relates to a method for growing diamond on a diamond substrate by chemical vapor deposition. The inventive method comprises alternatingly contacting at elevated temperature...
5300320 Chemical vapor deposition from single organometallic precursors  
A method is disclosed for forming a passivating/buffer film on a substrate. The method includes heating the substrate to a temperature which is sufficient to cause a volatilized organometallic...
5298106 Method of doping single crystal diamond for electronic devices  
A method of doping diamond by (1) ion implanting carbon into the diamond to create a damage zone of opaque, nondiamond material; (2) ion implanting a semiconductor dopant material that is a...
5298286 Method for fabricating diamond films on nondiamond substrates and related structures  
A method for making an oriented diamond film includes the steps of seeding a face of a nondiamond substrate with diamond particles, and orienting the diamond particles with respect to the...
5296207 Composite element, process for its preparation and its use  
A composite element is disclosed, having improved heat conductivity, and is composed of a substrate whose surface layer enables homeo- or heteroepitactic growth of the diamond lattice from the gas...
5290610 Forming a diamond material layer on an electron emitter using hydrocarbon reactant gases ionized by emitted electrons  
Depositing a diamond film on an electron emitting tip including disposing hydrocarbon and etchant reactant gasses together with the tip in a reaction vessel and providing an external voltage...
5290392 Single crystal diamond wafer fabrication  
This invention discloses a method of fabricating a plurality of diamond semiconductor wafers from a single crystal diamond semiconductor boule, where the diamond boule is grown by a chemical vapor...
5284709 Diamond materials with enhanced heat conductivity  
A diamond film having an intensity ratio of diamond-Raman-peak-to-photoluminescence background intensity greater than about 20, a maximum intensity of the diamond Raman peak in counts/sec divided...
5275798 Method for producing diamond films  
Disclosed is a method for the production of diamond films, which comprise introducing a diamond-forming gas into a reaction chamber in which a substrate is located, activating the gas in the...
5273618 Apparatus for vapor-phase synthesis of diamond and method for vapor-phase synthesis of diamond  
An apparatus for the synthesis of diamond by the vapor-phase process using a combustion flame is provided with a cover set in place in the peripheral region of a combustion burner for enveloping...
5273730 Method of synthesizing diamond  
Synthesis of diamond by the so-called thin solvent film method is improved to obtain diamond crystals with a large grain size and good quality in an economical manner. To this end, using a...
5273825 Article comprising regions of high thermal conductivity diamond on substrates  
A diamond coated article, wherein the diamond has a thermal conductivity of at least 17 Wcm K.
5273788 Preparation of diamond and diamond-like thin films  
A layer of a hydrocarbon molecule is applied to a substrate by the Langmuir-Blodgett technique, and the surface is irradiated with a laser to decompose the layer of molecules at the surface...
5273731 Substantially transparent free standing diamond films  
Substantially transparent polycrystalline diamond film is provided having a thickness greater than 50 microns which can be used in glazing applications and as a heat sink in microelectric...
5271971 Microwave plasma CVD method for coating a substrate with high thermal-conductivity diamond material  
A two-stage microwave plasma CVD process is disclosed for making a CVD diamond material, substantially free of voids, which has an average crystallite size greater than about 15 microns, a maximum...
5270028 Diamond and its preparation by chemical vapor deposition method  
A diamond having improved properties is produced by a method which comprises introducing a mixture of hydrogen (A), an inert gas (B) and a carbon-containing compound (C) in molar ratios which...
5270029 Carbon substance and its manufacturing method  
A carbon film consisting of diamond powder contains nitrogen and boron therein. In the light of the addition of nitrogen and boron, the diamond is fabricated without growing defects and the film...
5268201 Composite diamond grain and method for production thereof  
A composite diamond grain which comprises a heat-resistant grain as a nucleus and discrete diamond crystal particles distributed on the surface of the grain or diamond crystal films formed to...
5260106 Method for forming diamond films by plasma jet CVD  
A diamond film is deposited on a surface of a substrate. The diamond film is attached securely to the substrate by forming a first layer on the surface comprising a mixture of a main component of...
5258206 Method and apparatus for producing diamond thin films  
The present invention concerns a method of producing a diamond thin film. A plasma-activated gas, obtained by exciting a starting material containing a carbon source gas, is brought into contact...
5252174 Method for manufacturing substrates for depositing diamond thin films  
A method for manufacturing substrates for depositing diamond thin films is disclosed.In the method, a hydrocarbon gas is discharge-decomposed, products generated by the discharge decomposition are...
5250149 Method of growing thin film  
A heating process for producing a high quality diamond or c-BN film on a diamond or c-BN substrate comprising placing a diamond or c-BN substrate in vacuum, elevating the temperature and treating...
5242711 Nucleation control of diamond films by microlithographic patterning  
A high temperature resist process is combined with microlithographic patterning for the production of materials, such as diamond films, that require a high temperature deposition environment. A...
5236545 Method for heteroepitaxial diamond film development  
A method for preparing heteroepitaxial diamond films on silicon substrates is described. This method first involves the deposition of a cubic boron nitride layer on the silicon substrate as a...
5234724 Low energy ion doping of growing diamond by CVD  
A diamond growing by chemical vapor deposition is exposed to a low energy beam of ionized dopant. The ion beam energy is sufficient to implant the dopant in the growing surface of the diamond....
5230931 Plasma-assisted CVD of carbonaceous films by using a bias voltage  
Diamond films or I-Carbon films can be formed on a surface of an object by virtue of plasma-assisted chemical vapor deposition. The hardness of the films can be enhanced by applying a bias voltage...
5221501 Method of producing a smooth plate of diamond  
An improved method of producing transparent diamond laminates employs a substrate which is removed once a second layer is deposited over the diamond coating, thereby exposing a smooth diamond...
5221411 Method for synthesis and processing of continuous monocrystalline diamond thin films  
Disclosed is a method for the development of diamond thin films on a non-diamond substrate. The method comprises implanting carbon ions in a lattice-plane matched or lattice matched substrate. The...
5215788 Combustion flame method for forming diamond films  
When a mixture of gases containing carbon is burned to form a film of diamond on a surface of a substrate held at an appropriate temperature, it is so burned as to form a substantially flat region...
5209812 Hot filament method for growing high purity diamond  
A method of growing high purity diamond crystallite structures at relatively high growth rates on a temperature resistant substrate, comprising (a) flowing diamond producing feed gases at low...
5204145 Apparatus for producing diamonds by chemical vapor deposition and articles produced therefrom  
An improved method and apparatus are disclosed for producing large area diamond depositions. A mixture of a carbon compound such as methane, hydrogen and argon is introduced into a DC arc plasma...
5202571 Electron emitting device with diamond  
An electron emitting device is provided with a p-semiconductor layer formed on a semiconductor substrate. The p-semiconductor layer is composed of a diamond layer.
5201986 Diamond synthesizing method  
A diamond synthesizing method introduces a mixed gas of hydrocarbon gas and hydrogen gas into a reaction vessel (9) which is maintained under a pressure of 1 to 100 Torr. A dc discharge is caused...
5200231 Method of manufacturing polycrystalline diamond layers  
Method of manufacturing polycrystalline diamond layers, in which diamond crystallites are deposited by means of Chemical Vapour Deposition (CVD) on a substrate heated to a temperature ranging...
5198070 Joining diamond bodies  
A method of joining diamond bodies which includes the steps of positioning the bodies such that a surface of one body is close to a surface of the other body and a space is provided therebetween,...
5192523 Method for forming diamondlike carbon coating  
A method of depositing a diamondlike carbon coating on a substrate. An ionized beam of pure methane or methane and hydrogen, and having an ion kinetic energy in the range of 500-1,000 eV is...
5190734 Modified end assembly for high pressure, high temperature reaction vessels  
An end cap apparatus for high pressure, high temperature reaction vessels having a reaction chamber containing a reaction charge includes a single member disposed in registry with the reaction...
5190823 Method for improving adhesion of synthetic diamond coatings to substrates  
Adhesion of diamond coatings formed by chemical vapor deposition to substrates, particularly molybdenum substrates, is improved by employing an auxiliary substrate comprising elemental or...
5183529 Fabrication of polycrystalline free-standing diamond films  
Method of fabricating free-standing diamond films by depositing and adhering polycrystalline diamond by hot filament chemical vapor deposition (1-100 Torr, filament temperature equal to or greater...
5183685 Diamond film deposition by ECR CVD using a catalyst gas  
Diamond films can be formed on a surface by virtue of a microwave energy. A catalyst gas is introduced into a reaction chamber for ECR CVD, along with a carbon compound gas. The catalyst gas...
5180571 Process for the preparation of diamond  
An interrupting layer of inorganic powder other than diamond is formed on the surface of a substrate and a surface of the interrupting layer is contacted with excited raw material gases containing...
5176788 Method of joining diamond structures  
A process for bonding two diamond surfaces together by (1) forming a layer of opaque nondiamond carbon material between the two mond surfaces; (2) pressing the diamond surfaces together with the...
5174983 Flame or plasma synthesis of diamond under turbulent and transition flow conditions  
A method for synthesizing diamond which comprises flowing together a gaseous carbon source and a gaseous hydrogen source to form an at least partially turbulent mixture. The at least partially...
5171607 Method of depositing diamond-like carbon film onto a substrate having a low melting temperature  
A diamond-like carbon film is deposited on an insulating substrate using a solid carbon source evaporated by an electron beam so as to maintain the substrate temperature below about 150° C. in a...
5169676 Control of crystallite size in diamond film chemical vapor deposition  
In depositing an adhering, continuous, polycrystalline diamond film of optical or semiconductor quality on a substrate, as by forming on the substrate a layer of a refractory nitride interlayer...
5154945 Methods using lasers to produce deposition of diamond thin films on substrates  
Infrared lasers are used to deposit diamond thin films onto a substrate. In one embodiment, the deposition of the film is from a gas mixture of CH4 and H2 that is introduced into a chemical vapor...
5155559 High temperature refractory silicide rectifying contact  
A semiconductor device comprising a semiconducting diamond layer, (e.g. single crystal or polycrystalline), a refractory metal silicide layer adjacent the diamond layer for forming a rectifying...
5145711 Cyclotron resonance chemical vapor deposition method of forming a halogen-containing diamond on a substrate  
Diamond films or i-carbon films can be formed on a surface by virtue of cyclotron resonance chemical vapor deposition. The characteristics such as transmissivity, conductivity and hardness of the...