OPTICAL PROXIMITY SENSOR AND MANUFACTURING METHOD THEREOF
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United States of America Patent
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May 4, 2016
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Mar 30, 2016
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Abstract
A complex optical proximity sensor includes a substrate, a light emitter coupled to the substrate, an application-specific integrated circuit chip coupled to the substrate with a proximity sensor thereon, a barrier disposed between the application-specific integrated circuit chip and the light emitter, and an ambient light detection chip manufactured in advance and then coupled to the application-specific integrated circuit chip thereon with a pre-determined height. Also, with the manufacturing method of the complex optical proximity sensor, the detection angle of the ambient light is thereby maximized and the one of the proximity sensor is thereby minimized.
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