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"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 7772607 | GaN-series light emitting diode with high light efficiency A GaN-series light emitting diode with high light efficiency utilizes a p-type semiconductor layer having a textured surface structure. The optical waveguide effect can be interrupted and formation of hexagonal shaped pits defect can be reduced due to the textured s... | 08/10/2010 |
| 7473570 | Method for forming epitaxial layers of gallium nitride-based compound semiconductors The present invention relates to a structure and a manufacturing method of epitaxial layers of gallium nitride-based compound semiconductors with less dislocation densities. Surface treatment is carried out first on the surface of a substrate using reaction precurso... | 01/06/2009 |
| 7453098 | Vertical electrode structure of gallium nitride based light emitting diode A vertical electrode structure of GaN-based light emitting diode discloses an oxide window layer constructing the GaN-based light emitting diode of vertical electrode structure, which effectively decreases the Fresnel reflection loss and total reflection, and furthe... | 11/18/2008 |
| 7285800 | Light-emitting gallium nitride-based III-V group compound semiconductor device with high light extraction efficiency A light-emitting gallium nitride-based III-V group compound semiconductor device with high light extraction efficiency that features on a substrate with concave and/or convex surface, a texturing surface layer, and a transparent conductive window layer. Therefore, t... | 10/23/2007 |
| 7208752 | Structure and manufacturing of gallium nitride light emitting diode A structure of a gallium nitride light emitting diode has a transparent conductive window layer including a diffusion barrier layer, an ohmic contact layer, and a window layer. By using the added domain contact layer, the diffusion barrier layer and the P-type semic... | 04/24/2007 |
