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公开(公告)号:US20120028448A1
公开(公告)日:2012-02-02
申请号:US13248394
申请日:2011-09-29
申请人: Aref Chowdhury , Hock Ng , Richart Elliot Slusher
发明人: Aref Chowdhury , Hock Ng , Richart Elliot Slusher
IPC分类号: H01L21/20
CPC分类号: B82Y20/00 , B81B1/00 , G02B6/1225 , G02B2006/12035 , H01J1/304 , H01J3/022 , H01J9/025 , H01L21/0254 , H01L21/02639 , H01L21/30612
摘要: A fabrication method produces a mechanically patterned layer of group III-nitride. The method includes providing a crystalline substrate and forming a first layer of a first group III-nitride on a planar surface of the substrate. The first layer has a single polarity and also has a pattern of holes or trenches that expose a portion of the substrate. The method includes then, epitaxially growing a second layer of a second group III-nitride over the first layer and the exposed portion of substrate. The first and second group III-nitrides have different alloy compositions. The method also includes subjecting the second layer to an aqueous solution of base to mechanically pattern the second layer.
摘要翻译: 制造方法产生III族氮化物的机械图案化层。 该方法包括提供晶体衬底并在衬底的平坦表面上形成第一III族氮化物的第一层。 第一层具有单一极性,并且还具有露出基板的一部分的孔或沟槽的图案。 该方法包括在第一层和衬底的暴露部分上外延生长第二III族氮化物层的第二层。 第一和第二III族氮化物具有不同的合金组成。 该方法还包括使第二层经受基底水溶液以机械地图形化第二层。