摘要:
A semiconductor light emitting device includes a semiconductor structure, a transparent electrically-conducting layer, a dielectric film, and a metal reflecting layer. The semiconductor structure includes an active region. The transparent electrically-conducting layer is formed on the upper surface of the semiconductor structure. The dielectric film is formed on the upper surface of the transparent electrically-conducting layer. The metal reflecting layer is formed on the upper surface of the dielectric film. The dielectric film has at least one opening whereby partially exposing the transparent electrically-conducting layer. The transparent electrically-conducting layer is electrically connected to the metal reflecting layer through the opening. A barrier layer is partially formed and covers the opening so that the barrier layer is interposed between the transparent electrically-conducting layer and the metal reflecting layer.
摘要:
A methacrylic resin comprising 80 to 98.5 wt % of methyl methacrylate monomer unit and 1.5 to 20 wt % of at least one different vinyl monomer unit copolymerizable with methyl methacrylate, characterized in that the methacrylic resin has a weight average molecular weight measured by gel permeation chromatography (GPC) of 60,000 to 230,000 and comprises 7 to 30% of a component having a weight average molecular weight of ⅕ or less of a peak weight average molecular weight (Mp) obtained from a GPC elution curve based on the methacrylic resin component.
摘要:
The present invention provides a method of preparing frozen or lyophilized microbial cells which can inhibit damages or death of microbial cells and have high viabilities in freezing or lyophilizing process.A method of preparing frozen or lyophilized microbial cells having high viabilities, characterized by using a permeate which is obtained by filtering milk or whey with ultra-filtration (UF) membrane, as a protecting agent at the time of freezing or lyophilizing.
摘要:
Disclosed is a light-conducting plate which comprises a transparent resin containing a carbonic acid gas and which has a carbonic acid gas content of from 0.01 to 2% by weight based on the weight of the light-conducting plate. The plate used in a planar light emitting device exhibits increased luminance, improved luminance uniformity, and reduced color unevenness. Also disclosed is a method of producing the light-conducting plate.
摘要:
A methacrylic resin comprising 80 to 98.5 wt % of methyl methacrylate monomer unit and 1.5 to 20 wt % of at least one different vinyl monomer unit copolymerizable with methyl methacrylate, characterized in that the methacrylic resin has a weight average molecular weight measured by gel permeation chromatography (GPC) of 60,000 to 230,000 and comprises 7 to 30% of a component having a weight average molecular weight of ⅕ or less of a peak weight average molecular weight (Mp) obtained from a GPC elution curve based on the methacrylic resin component.
摘要:
A semiconductor light emitting device includes a semiconductor structure, a transparent electrically-conducting layer, a dielectric film, and a metal reflecting layer. The semiconductor structure includes an active region. The transparent electrically-conducting layer is formed on the upper surface of the semiconductor structure. The dielectric film is formed on the upper surface of the transparent electrically-conducting layer. The metal reflecting layer is formed on the upper surface of the dielectric film. The dielectric film has at least one opening whereby partially exposing the transparent electrically-conducting layer. The transparent electrically-conducting layer is electrically connected to the metal reflecting layer through the opening. A barrier layer is partially formed and covers the opening so that the barrier layer is interposed between the transparent electrically-conducting layer and the metal reflecting layer.