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    • 2. 发明申请
    • SUBSTRATE FOR EPITAXY
    • EPITAXY的基础
    • WO2003035945A2
    • 2003-05-01
    • PCT/PL2002/000077
    • 2002-10-25
    • AMMONO SP. ZO.O.NICHIA CORPORATIONDWILINSKI, RobertDORADZINSKI, RomanGARCZYNSKI, JerzySIERZPUTOWSKI, Leszek, P.KANBARA, Yasuo
    • DWILINSKI, RobertDORADZINSKI, RomanGARCZYNSKI, JerzySIERZPUTOWSKI, Leszek, P.KANBARA, Yasuo
    • C30B
    • C30B29/403C30B7/00C30B7/10C30B29/40C30B29/406H01S5/0281H01S5/32341
    • The invention relates to a substrate for epitaxy, especially for preparation of nitride semiconductor layers. Invention covers a bulk nitride mono-crystal characterized in that it is a mono-crystal of gallium nitride and its cross-section in a plane perpendicular to c-axis of hexagonal lattice of gallium nitride has a surface area greater than 100 mm 2 , it is more than 1,0 μm thick and its C-plane surface dislocation density is less than 10 6 /cm 2 , while its volume is sufficient to produce at least one further-processable non-polar A-plane or M-plane plate having a surface area at least 100 mm 2 . More generally, the present invention covers a bulk nitride mono-crystal which is characterized in that it is a mono-crystal of gallium-containing nitride and its cross-section in a plane perpendicular to c-axis of hexagonal lattice of gallium-containing nitride has a surface area greater than 100 mm 2 , it is more 1,0 μm thick and its surface dislocation density is less than 10 6 /cm 2 . Mono-crystals according to the present invention are suitable for epitaxial growth of nitride semiconductor layers. Due to their good crystalline quality they are suitable for use in opto-electronics for manufacturing opto-electronic semiconductor devices based on nitrides, in particular for manufacturing semiconductor laser diodes and laser devices. The a.m bulk mono-crystals of gallium-containing nitride are crystallized on seed crystals. Various seed crystals may be used. The bulk mono-crystals of gallium-containing nitride are crystallized by a method involving dissolution of a gallium-containing feedstock in a supercritical solvent and crystallization of a gallium nitride on a surface of seed crystal, at temperature higher and/or pressure lower than in the dissolution process.
    • 本发明涉及用于外延的衬底,特别是用于制备氮化物半导体层的衬底。 本发明涵盖了一种块状氮化物单晶,其特征在于它是氮化镓的单晶,并且其在与氮化镓的六方晶格的c轴垂直的平面中的横截面具有大于100mm的表面积, 2时,其厚度大于1.0μm,并且其C平面表面位错密度小于10 6/2 / cm 2,而其体积为 足以产生至少一个具有至少100mm 2表面积的可进一步加工的非极性A面或M面板。 更一般地,本发明涵盖了一种块体氮化物单晶,其特征在于它是含镓氮化物的单晶,并且其在垂直于含镓氮化物的六方晶格的c轴的平面内的横截面 表面积大于100mm 2,厚度大于1.0μm,表面位错密度小于10 6 / cm 2 2, SUP>。 根据本发明的单晶适合于氮化物半导体层的外延生长。 由于它们良好的结晶质量,它们适合用于光电子器件来制造基于氮化物的光电半导体器件,特别是用于制造半导体激光二极管和激光器件。 含镓氮化物的a.m块体单晶在晶种上结晶。 可以使用各种晶种。 含镓氮化物的块体单晶通过这样的方法结晶,所述方法包括在超临界溶剂中溶解含镓原料并在比晶体表面上的晶种表面上晶化氮化镓更高和/或更低的温度 解散过程。
    • 8. 发明申请
    • LIGHT EMITTING DEVICE
    • 发光装置
    • WO2016139954A1
    • 2016-09-09
    • PCT/JP2016/001177
    • 2016-03-03
    • NICHIA CORPORATION
    • YAMADA, MotokazuOZAKI, Tomonori
    • H01L33/56H01L33/50H01L33/58
    • H01L33/56H01L33/50H01L33/502H01L2224/73204H01L2933/0091
    • The light emitting device comprising: a light-emitting element; a covering resin covering the light-emitting element; a wavelength converting material contained in the covering resin; and a light diffusing agent contained in the covering resin, wherein the light diffusing agent contains glass particles, a first refractive index n1 of the covering resin at a peak wavelength of the light-emitting element at 25 °C is in a range of 1.48 to 1.60, a second refractive index n2 of the covering resin at the peak wavelength at 100 °C is at least 0.0075 lower than the first refractive index n1, and a third refractive index n3 of the light diffusing agent at the peak wavelength of 25 °C is higher than the first refractive index n1.
    • 发光器件包括:发光元件; 覆盖发光元件的覆盖树脂; 包含在覆盖树脂中的波长转换材料; 和包含在覆盖树脂中的光漫射剂,其中光扩散剂含有玻璃颗粒,在25℃下发光元件的峰值波长处的覆盖树脂的第一折射率n1在1.48至 1.60时,覆盖树脂在100℃的峰值波长处的第二折射率n2比第一折射率n1低至少0.0075,在25℃的峰值波长处的光漫射剂的第三折射率n3 高于第一折射率n1。
    • 9. 发明申请
    • PROCESS FOR OBTAINING BULK MONOCRYSTALLINE GALLIUM-CONTAINING NITRIDE
    • 获得大容量单晶含氮氮化物的方法
    • WO2004053206A1
    • 2004-06-24
    • PCT/JP2003/015904
    • 2003-12-11
    • AMMONO SP. Z O.O.NICHIA CORPORATIONDWILINSKI, RobertDORADZINSKI, RomanGARCZYNSKI, JerzySIERZPUTOWSKI, LeszekKANBARA, Yasuo
    • DWILINSKI, RobertDORADZINSKI, RomanGARCZYNSKI, JerzySIERZPUTOWSKI, LeszekKANBARA, Yasuo
    • C30B9/00
    • C30B29/403C30B7/00C30B7/005C30B29/406
    • A process for obtaining bulk mono-crystalline gallium-containing nitride, eliminating impurities from the obtained crystal and manufacturing substrates made of bulk mono-crystalline gallium-containing nitride has been now proposed. According to the invention, the process for obtaining of mono-crystalline gallium-containing nitride from the gallium-containing feedstock in a supercritical ammonia-containing solvent with mineralizer addition is characterized in that the feedstock is in the form of metallic gallium and the mineralizer is in the form of elements of Group I and/or their mixtures, and/or their compounds, especially those containing nitrogen and/or hydrogen, whereas the ammonia-containing solvent is in the form of the mineralizer and ammonia, there are two temperature zones in each step of the process, and the feedstock is placed in the dissolution zone, and at least one mono-crystalline seed is deposited in the crystallization zone, and following the transition of the solvent to the supercritical state, the process comprises the first step of transition of the feedstock from the metallic form to the polycrystalline gallium-containing nitride, and the second step of crystallization of the gallium-containing nitride through gradual dissolution of the feedstock and selective crystallization of gallium-containing nitride on at least one mono-crystalline seed at the temperature higher than that of the dissolution of the feedstock, while all the vital components of the reaction system (including the feedstock, seeds and mineralizer) invariably remain within the system throughout the whole process, and consequently bulk mono-crystalline gallium-containing nitride is obtained. The invention relates also the the post-treatment (slicing, annealing and washing) of the thus obtained crystals.The improved process and the bulk monocrystals obtained thereby are intended mainly for use in the field of opto-electronics.
    • 现在提出了一种用于获得块状单晶含镓氮化物的方法,从所获得的晶体中消除杂质并制造由块状单晶含镓氮化物制成的衬底。 根据本发明,在具有矿化剂添加剂的超临界含氨溶剂中从含镓原料获得单晶含镓氮化物的方法的特征在于原料为金属镓的形式,矿化剂为 以I族元素和/或其混合物的形式,和/或其化合物,特别是含有氮和/或氢的化合物,而含氨的溶剂为矿化剂和氨的形式,则存在两个温度区 在该方法的每个步骤中,并且将原料置于溶解区中,并且至少一种单晶种子沉积在结晶区中,并且在溶剂转变为超临界状态之后,该方法包括第一步骤 原料从金属形式向多晶含镓氮化物的过渡,以及含镓镓的结晶的第二步骤 通过原料的逐渐溶解使氮化物和在至少一种单晶种子上的含镓氮化物在高于原料溶解温度的温度下选择性结晶,同时反应体系的所有重要组分(包括原料 ,种子和矿化剂)在整个过程中总是保持在系统内,因此获得了大量单晶含镓氮化物。 本发明还涉及由此获得的晶体的后处理(切片,退火和洗涤)。由此获得的改进的工艺和主体单晶主要用于光电子领域。