| 摘要 |
In order to provide a semiconductor device which makes it possible to mount a semiconductor element on the substrate of the semiconductor device main body at the correct position with a higher degree of accuracy, a semiconductor element 2 is mounted at a circuit forming surface of a semiconductor substrate 1 at the periphery of which pad electrodes 5 are provided and a specific area in the semiconductor device containing the semiconductor element 2 is sealed with resin. At the circuit forming surface of the semiconductor substrate 1 , reference lines 3 are formed in correspondence to the positions of at least three corners of the semiconductor element 2 to be mounted.
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