Patent application number | Description | Published |
20080206569 | Diamond Based Substrate for Electronic Device - The invention relates to a method of manufacture of a substrate for fabrication of semi-conductor layers or devices, comprising the steps of providing a wafer of silicon including at least one first surface suitable for use as a substrate for CVD diamond synthesis, growing a layer of CVD diamond of predetermined thickness and having a growth face onto the first surface of the silicon wafer, reducing the thickness of the silicon wafer to a predetermined level, and providing a second surface on the silicon wafer that is suitable for further synthesis of at least one semiconductor layer suitable for use in electronic devices or synthesis of electronic devices on the second surface itself and to a substrate suitable for GaN device growth consisting of a CVD diamond layer intimately attached to a silicon surface. | 08-28-2008 |
20090152109 | MICROELECTRODE ARRAY - Microelectrode comprising a body formed from electrically non-conducting material and including at least one region of electrically conducting material and at least one passage extending through the body of non-conducting material and the region of conducting material, the electrically conducting region presenting an area of electrically conducting material to a fluid flowing through the passage in use. An electrochemical cell which includes such a microelectrode is also disclosed. | 06-18-2009 |
20090175777 | SINGLE CRYSTAL DIAMOND PREPARED BY CVD - A single crystal diamond prepared by CVD and having one or more electronic characteristics; making the diamond suitable for electronic applications. Also provided is a method of making the single crystal CVD diamond. | 07-09-2009 |
20090208666 | DIAMOND COATED SURFACES - A method of producing a diamond coated surface on a substrate. A surface of the substrate is prepared by exposing it to a power beam, such as an electron beam, to increase the surface area and surface roughness. Such preparation may also provide the surface with three dimensional features onto which a diamond layer can adhere and mechanically lock. Adhesion of a diamond layer applied to the prepared surface is increased. | 08-20-2009 |
20100006450 | DIAMOND ELECTRODE - An electrode comprising an electrically conducting diamond plate wherein the diamond plate comprises at least one elongate aperture and having an aperture edge length per unit working area of the diamond plate of greater than about 4 mm/mm | 01-14-2010 |
20100012491 | HIGH UNIFORMITY BORON DOPED DIAMOND MATERIAL - The present invention relates to diamond material comprising a boron doped single crystal diamond substrate layer having a first surface and a boron doped single crystal diamond conductive layer on said first surface, wherein the distribution of boron in the conductive layer is more uniform than the distribution of boron in the substrate layer. | 01-21-2010 |
20100015438 | HIGH COLOUR DIAMOND LAYER - A method of producing CVD diamond having a high colour, which is suitable for optical applications, for example. The method includes adding a gaseous source comprising a second impurity atom type to counter the detrimental effect on colour caused by the presence in the CVD synthesis atmosphere of a first impurity atom type. The described method applies to the production of both single crystal diamond and polycrystalline diamond. | 01-21-2010 |
20100032312 | ELECTROCHEMICAL APPARATUS HAVING A FORCED FLOW ARRANGEMENT - The present invention provides an electrochemical apparatus for processing a fluid comprising: an electrode; a solid electrolyte; and means for providing forced flow through the apparatus of a fluid to be processed, wherein the apparatus is arranged such that when the fluid to be processed is introduced into the apparatus there exists at least one three phase interface between the electrode, the solid electrolyte and the fluid to be processed and such that the fluid forming part of the three phase interface undergoes forced flow through the apparatus, and methods in which the electrochemical apparatus is used. | 02-11-2010 |
20100038653 | DIAMOND ELECTRONIC DEVICES AND METHODS FOR THEIR MANUFACTURE - The present invention relates to a diamond electronic device comprising a functional interface between two solid materials, wherein the interface is formed by a planar first surface of a first layer of single crystal diamond and a second layer formed on the first surface of the first diamond layer, the second layer being solid, non-metallic and selected from diamond, a polar material and a dielectric material, and wherein the planar first surface of the first layer of single crystal diamond has an Rq of less than 10 nm and has at least one of the following characteristics: (a) the first surface is an etched surface; (b) a density of dislocations in the first diamond layer breaking the first surface is less than 400 cm | 02-18-2010 |
20100047519 | PLASMA ETCHING OF DIAMOND SURFACES - The present invention relates to a method of producing a diamond surface including the steps of providing an original diamond surface, subjecting the original diamond surface to plasma etching to remove at least 2 nm of material from the original surface and produce a plasma etched surface, the roughness R | 02-25-2010 |
20100064538 | POLYCRYSTALLINE DIAMOND ELEMENTS HAVING CONVEX SURFACES - A diamond element ( | 03-18-2010 |
20100078651 | ELECTRONIC FIELD EFFECT DEVICES AND METHODS FOR THEIR MANUFACTURE - Electronic field effect devices, and methods of manufacture of these electronic field effect devices are disclosed. In particular, there is disclosed an electronic field effect device which has improved electrical properties due to the formation of a highly mobile two-dimensional charge-carrier gas in a simple structure formed from diamond in combination with polar materials. | 04-01-2010 |
20100078652 | DIAMOND ELECTRONIC DEVICES INCLUDING A SURFACE AND METHODS FOR THEIR MANUFACTURE - The present invention relates to a diamond electronic device comprising a functional surface formed by a planar surface of a single crystal diamond, the planar surface of the single crystal diamond having an Rq of less than 10 nm and at least one of the following characteristics: (a) the surface has not been mechanically processed since formation by synthesis; (b) the surface is an etched surface; (c) a density of dislocations in the diamond breaking the surface is less than 400 cm″2 measured over an area greater than 0.014 cm2; (d) the surface has an Rq less than 1 nm; (e) the surface has regions with a layer of charge carriers immediately below it, such that the regions of the surface are normally termed conductive, such as a hydrogen terminated {100} diamond surface region; (f) the surface has regions with no layer of charge carriers immediately below it, such that these regions of the surface are normally termed insulating, such as an oxygen terminated {100} diamond surface; and (g) the surface has one or more regions of metallization providing electrical contact to the diamond surface beneath these regions. | 04-01-2010 |
20110150745 | SINGLE CRYSTAL DIAMOND MATERIAL - A method of producing a grown single crystal diamond substrate comprising:
| 06-23-2011 |
20120090997 | MICROELECTRODE ARRAY - Microelectrode comprising a body formed from electrically non-conducting material and including at least one region of electrically conducting material and at least one passage extending through the body of non-conducting material and the region of conducting material, the electrically conducting region presenting an area of electrically conducting material to a fluid flowing through the passage in use. An electrochemical cell which includes such a microelectrode is also disclosed. | 04-19-2012 |
20120241763 | ELECTRONIC FIELD EFFECT DEVICES AND METHODS FOR THEIR MANUFACTURE - Electronic field effect devices, and methods of manufacture of these electronic field effect devices are disclosed. In particular, there is disclosed an electronic field effect device which has improved electrical properties due to the formation of a highly mobile two-dimensional charge-carrier gas in a simple structure formed from diamond in combination with polar materials. | 09-27-2012 |
20130126909 | ELECTRONIC FIELD EFFECT DEVICES AND METHODS FOR THEIR MANUFACTURE - Electronic field effect devices, and methods of manufacture of these electronic field effect devices are disclosed. In particular, there is disclosed an electronic field effect device which has improved electrical properties due to the formation of a highly mobile two-dimensional charge-carrier gas in a simple structure formed from diamond in combination with polar materials. | 05-23-2013 |
20130202518 | SINGLE CRYSTAL DIAMOND PREPARED BY CVD - A single crystal diamond prepared by CVD and having one or more electronic characteristics; making the diamond suitable for electronic applications. Also provided is a method of making the single crystal CVD diamond. | 08-08-2013 |