Semiconductor device and method of manufacturing the same
First Claim
1. A semiconductor device comprising:
- a blue-violet laser emitting device emitting laser light having a wavelength between 400 and 415 nm;
a semiconductor substrate comprising a device element formed on a front surface thereof, the device element being configured to receive the laser light emitted from the blue-violet laser emitting device and to convert the received laser light into an electric signal;
a transparent substrate attached to the front surface of the semiconductor substrate so as to cover the device element; and
an adhesive layer comprising a transparent silicone and attaching the transparent substrate to the front surface of the semiconductor substrate, the adhesive layer covering the device element.
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Abstract
The invention is directed to providing a semiconductor device receiving a blue-violet laser, of which the reliability and yield are enhanced. A device element converting a blue-violet laser into an electric signal is formed on a front surface of a semiconductor substrate. An optically transparent substrate is attached to the front surface of the semiconductor substrate with an adhesive layer being interposed therebetween. The adhesive layer contains transparent silicone. Since the front surface of the device element is covered by the optically transparent substrate, foreign substances are prevented from adhering to the front surface of the device element. Furthermore, the adhesive layer is covered by the optically transparent substrate. This prevents the adhesive layer from being exposed to outside air, thereby preventing the degradation of the adhesive layer 6 due to a blue-violet laser.
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Citations
15 Claims
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1. A semiconductor device comprising:
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a blue-violet laser emitting device emitting laser light having a wavelength between 400 and 415 nm; a semiconductor substrate comprising a device element formed on a front surface thereof, the device element being configured to receive the laser light emitted from the blue-violet laser emitting device and to convert the received laser light into an electric signal; a transparent substrate attached to the front surface of the semiconductor substrate so as to cover the device element; and an adhesive layer comprising a transparent silicone and attaching the transparent substrate to the front surface of the semiconductor substrate, the adhesive layer covering the device element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification