| 摘要 |
The invention provides a fingerprint input device with a small area and a compact structure, and being manufactured in a simple process, comprising an LED for emitting into a finger a light, an image pickup unit for receiving the light scattered inside the finger, a peripheral circuit unit connected to the image pickup unit 1a, a silicon chip 1 bearing image pickup elements constituting the image pickup unit and the peripheral circuit unit, and a fiber optics plate fixed on the silicon chip, having a surface on which the finger is placed and constituting light transmission means for transmitting the light, scattered inside the finger placed on the surface to the image pickup element along a direction inclined by a predetermined angle. At least a part of the peripheral circuit unit is formed on the silicon chip opposed to a non-light-transmitting area of the fiber optics plate.
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