HOST SUBSTRATE FOR NITRIDE BASED LIGHT EMITTING DEVICES
    31.
    发明申请
    HOST SUBSTRATE FOR NITRIDE BASED LIGHT EMITTING DEVICES 审中-公开
    用于基于氮化物的发光装置的主体基板

    公开(公告)号:US20100244195A1

    公开(公告)日:2010-09-30

    申请号:US12412702

    申请日:2009-03-27

    CPC classification number: H01L33/0079

    Abstract: A host substrate and method of making a host substrate for nitride based thin-film semiconductor devices are provided. According to one embodiment, the method includes the steps of providing a silicon layer; etching a pattern of holes in the silicon layer; plating the silicon layer with copper to fill the holes etched in the silicon layer; bonding the silicon layer to a gallium nitride (GaN) layer, the GaN layer attached to a sapphire substrate; and removing the sapphire substrate. The host substrate is configured to address the coefficient of thermal expansion (CTE) mismatch problem and reduce the amount of stress resulting from such CTE mismatch. A combination of metal and semiconductor materials provide for the desired thermal and electrical conductivity while providing for subsequent dicing and incorporation of the finished semiconductor devices into other circuits.

    Abstract translation: 提供了一种主衬底和制造用于氮化物基薄膜半导体器件的主衬底的方法。 根据一个实施例,该方法包括提供硅层的步骤; 蚀刻硅层中的孔的图案; 用铜电镀硅层以填充蚀刻在硅层中的孔; 将所述硅层与氮化镓(GaN)层接合,所述GaN层附着在蓝宝石衬底上; 并去除蓝宝石衬底。 主机基板被配置为解决热膨胀系数(CTE)失配问题,并减少由这种CTE失配引起的应力的量。 金属和半导体材料的组合提供期望的热导电性和导电性,同时提供随后的切割和将成品半导体器件并入其它电路中。

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