Patent application number | Description | Published |
20090214169 | STRUCTURES FORMED IN DIAMOND - N-V centers in diamond are created in a controlled manner. In one embodiment, a single crystal diamond is formed using a CVD process, and then annealed to remove N-V centers. A thin layer of single crystal diamond is then formed with a controlled number of N-V centers. The N-V centers form Qubits for use in electronic circuits. Masked and controlled ion implants, coupled with annealing are used in CVD formed diamond to create structures for both optical applications and nanoelectromechanical device formation. Waveguides may be formed optically coupled to the N-V centers and further coupled to sources and detectors of light to interact with the N-V centers. | 08-27-2009 |
20100000507 | ANGLE CUT ON CVD DIAMOND - A cut gemstone has one or more backside grooves cut into backside facets to form sub facets that operate to increase the brilliance of the cut gemstone. | 01-07-2010 |
20100026985 | RETAIL COMPATIBLE DETECTION OF CVD GROWN DIAMOND - A system includes a radiation source to provide short wavelength light. A holder positions a table of a gemstone to receive the light. A detector is positioned to receive fluorescent light from the gemstone when the gemstone is a CVD grown gemstone. | 02-04-2010 |
20100028556 | CHEMICAL VAPOR DEPOSITION COLORED DIAMOND - Chemical vapor deposition grown diamonds may be provided with one or more layers of doping to form colored diamonds. In one embodiment, layers of pink colored diamond may be formed by doping with nitrogen. In further embodiments, layers of yellow colored diamond may be formed by doping with boron. In some embodiments, the grown diamond has a single crystalline structure with minimal to no grain boundaries. | 02-04-2010 |
20100053597 | DETECTION OF CHEMICAL VAPOR DEPOSITION GROWN DIAMOND - Diamonds may be identified as grown by the use of chemical vapor deposition. One or more diamonds may be placed on a surface and exposed to short wavelength light. Diamonds that fluoresce red may be identified as grown by the use of chemical vapor deposition. In some embodiments, the diamonds are cooled prior to exposure to the short wavelength light. | 03-04-2010 |
20100055022 | DIAMOND IDENTIFIER - Diamonds are embedded with one or more layers representative of an identifier. The identifier may include encoding in the form of defects created in one or more layers in a recognizable pattern, such as a bar code, characters or symbols. In some embodiments, a single crystal CVD diamond is formed with layers of varying thickness to provide the encoding. A system includes a radiation source to provide short wavelength light. A holder positions a gemstone to receive the light. A detector is positioned to receive fluorescent light from the gemstone when the gemstone is a CVD grown gemstone, and a pattern identifier correlates a detected pattern of defects to unique identification information. | 03-04-2010 |
20100059034 | GEMSTONE PRODUCTION FROM CVD DIAMOND PLATE - A method of producing gemstones includes obtaining a plate of chemical vapor deposition formed diamond. The plate is cut into a plurality of geometrically optimized preforms. The preforms may be finished and cut into diamond gemstones. | 03-11-2010 |
20110054450 | DIAMOND MEDICAL DEVICES - Masked and controlled ion implants, coupled with annealing or etching are used in CVD formed single crystal diamond to create structures for both optical applications, nanoelectromechanical device formation, and medical device formation. Ion implantation is employed to deliver one or more atomic species into and beneath the diamond growth surface in order to form an implanted layer with a peak concentration of atoms at a predetermined depth beneath the diamond growth surface. The composition is heated in a non-oxidizing environment under suitable conditions to cause separation of the diamond proximate the implanted layer. Further ion implants may be used in released structures to straighten or curve them as desired. Boron doping may also be utilized to create conductive diamond structures. | 03-03-2011 |
20120058602 | METHOD OF FORMING A WAVEGUIDE IN DIAMOND - N-V centers in diamond are created in a controlled manner. In one embodiment, a single crystal diamond is formed using a CVD process, and then annealed to remove N-V centers. A thin layer of single crystal diamond is then formed with a controlled number of N-V centers. The N-V centers form Qubits for use in electronic circuits. Masked and controlled ion implants, coupled with annealing are used in CVD formed diamond to create structures for both optical applications and nanoelectromechanical device formation. Waveguides may be formed optically coupled to the N-V centers and further coupled to sources and detectors of light to interact with the N-V centers. | 03-08-2012 |
20120164786 | GALLIUM NITRIDE LIGHT EMITTING DEVICES ON DIAMOND - Wide bandgap devices are formed on a diamond substrate, such as for light emitting diodes as a replacement for incandescent light bulbs and fluorescent light bulbs. In one embodiment, diodes (or other devices) are formed on diamond in at least two methods. A first method comprises growing a wide bandgap material on diamond and building devices on that grown layer. The second method involves bonding a wide bandgap layer (device or film) onto diamond and building the device onto the bonded layer. These devices may provide significantly higher efficiency than incandescent or fluorescent lights, and provide significantly higher light or energy density than other technologies. Similar methods and structures result in other wide bandgap semiconductor devices. | 06-28-2012 |
20120170019 | DETECTION OF CHEMICAL VAPOR DEPOSITION GROWN DIAMOND - Diamonds may be identified as grown by the use of chemical vapor deposition. One or more diamonds may be placed on a surface and exposed to short wavelength light. Diamonds that fluoresce red may be identified as grown by the use of chemical vapor deposition. In some embodiments, the diamonds are cooled prior to exposure to the short wavelength light. | 07-05-2012 |
20120242977 | RETAIL COMPATIBLE DETECTION OF CVD GROWN DIAMOND - A system includes a radiation source to provide short wavelength light. A holder positions a table of a gemstone to receive the light. A detector is positioned to receive fluorescent light from the gemstone when the gemstone is a CVD grown gemstone. | 09-27-2012 |