| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical semiconductor device which prevents unnecessary incident light and reflection light from an end face of a transparent member to an optical element part, which easily achieves downsizing and high functionality, and which has stable optical characteristics. <P>SOLUTION: An optical semiconductor device comprises: a first semiconductor chip 1; a second semiconductor chip 2 which is held on the first semiconductor ship 1 and whose upper part has an optical element 3; and a transparent member 6 fastened on the second semiconductor chip 2 so as to cover the optical element 3. An outer edge of the transparent member 6 lies inside an edge of the first semiconductor chip 1 and outside an edge of the second semiconductor chip 2. <P>COPYRIGHT: (C)2013,JPO&INPIT |
