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    • 2. 发明专利
    • Optical semiconductor device, manufacturing method of the same, base substrate and reflector mold used for manufacturing the same
    • 光学半导体器件,其制造方法,用于制造它们的基底和反射器模具
    • JP2014022651A
    • 2014-02-03
    • JP2012161790
    • 2012-07-20
    • Hitachi Chemical Co Ltd日立化成株式会社
    • TONAI TOMOKOTAKANE NOBUAKIYAMAURA ITARUINADA MAKI
    • H01L33/60
    • H01L2224/48091H01L2224/73265H01L2224/8592H01L2924/00014
    • PROBLEM TO BE SOLVED: To provide an optical semiconductor device which can inhibit sulfidation of a silver plating layer, and provide a manufacturing method of the optical semiconductor device, a base substrate and a reflector mold used of manufacturing of the optical semiconductor device.SOLUTION: An optical semiconductor device 1A comprises: a substrate 10 on which a silver plating layer 14 is formed on a surface; a blue LED 30 bonded on the silver plating layer 14; a reflector 20 arranged on the substrate 10 at a position to surround the blue LED 30; a transparent encapsulation resin 40 filled in the reflector 20 for encapsulating the blue LED 30; and a mica film 50 which covers the silver plating layer 10. A thickness of the mica film is not less than 0.005 μm and not more than 500 μm. Because in this optical semiconductor device 1A, the silver plating layer 14 is covered with the mica film 50 and the film thickness d of the mica film 50 is within a range of not less than 0.005 μm and not more than 500 μm, sulfidation of the silver plating layer 14 can be inhibited to a practically sufficient degree. Accordingly, decrease in illumination intensity of the optical semiconductor device 1A caused by blackening of the silver plating layer 14 is inhibited.
    • 要解决的问题:提供一种可以抑制镀银层的硫化的光半导体装置,并提供用于制造光半导体装置的光半导体装置,基底基板和反射器模具的制造方法。解决方案: 光学半导体装置1A包括:表面上形成有银镀层14的基板10; 结合在镀银层14上的蓝色LED30; 在围绕蓝色LED 30的位置处布置在基板10上的反射器20; 填充在用于封装蓝色LED 30的反射器20中的透明封装树脂40; 和覆盖镀银层10的云母膜50.云母膜的厚度为0.005μm以上500μm以下。 由于在该光半导体装置1A中,由云母膜50覆盖银镀层14,云母膜50的膜厚d在0.005μm以上且500μm以下的范围内,因此, 可以将镀银层14抑制到足够的程度。 因此,抑制了由镀银层14的黑化引起的光半导体装置1A的照明强度的降低。