发明名称 Light emission device
摘要 The invention relates to a light emission device, comprising at least two light-emitting semiconductor chips and a substrate. At least one first semiconductor chip ( 12 ) is fitted on the substrate and a second semiconductor chip ( 14 ) is fitted on the first semiconductor chip ( 12 ).
申请公布号 US2008217630(A1) 申请公布日期 2008.09.11
申请号 US20080075474 申请日期 2008.03.11
申请人 IVOCLAR VIVADENT AG 发明人 PLANK WOLFGANG
分类号 H01L33/00 主分类号 H01L33/00
代理机构 代理人
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