摘要:
Various embodiments of a miniaturized optical proximity sensor are disclosed. In one embodiment, an ambient light sensor and a light detector are mounted on first and second spacers, which in turn are mounted to a top surface of an integrated circuit die-attached to a substrate. An optically-transmissive infrared pass compound is molded over the ambient light sensor, the light detector, the integrated circuit, a light emitter and peripheral portions of the substrate. Next, an optically non-transmissive infrared cut compound is molded over the optically-transmissive infrared pass compound to provide a miniaturized optical proximity sensor having no metal shield but exhibiting very low crosstalk characteristics.
摘要:
Various embodiments of a compact optical proximity sensor with a ball grid array and windowed or apertured substrate are disclosed. In one embodiment, the optical proximity sensor comprises a printed circuit board (“PCB”) substrate comprising an aperture and a lower surface having electrical contacts disposed thereon, an infrared light emitter and an infrared light detector mounted on an upper surface of the substrate, an integrated circuit located at least partially within the aperture, a molding compound being disposed between portions of the integrated circuit and substrate, an ambient light detector mounted on an upper surface of the integrated circuit, first and second molded infrared light pass components disposed over and covering the infrared light emitter and the infrared light detector, respectively, and a molded infrared light cut component disposed between and over portions of the first and second infrared light pass components.
摘要:
Various embodiments of a compact optical proximity sensor with a ball grid array and windowed or apertured substrate are disclosed. In one embodiment, the optical proximity sensor comprises a printed circuit board (“PCB”) substrate comprising an aperture and a lower surface having electrical contacts disposed thereon, an infrared light emitter and an infrared light detector mounted on an upper surface of the substrate, an integrated circuit located at least partially within the aperture, a molding compound being disposed between portions of the integrated circuit and substrate, an ambient light detector mounted on an upper surface of the integrated circuit, first and second molded infrared light pass components disposed over and covering the infrared light emitter and the infrared light detector, respectively, and a molded infrared light cut component disposed between and over portions of the first and second infrared light pass components.
摘要:
Various embodiments of a miniaturized optical proximity sensor are disclosed. In one embodiment, an ambient light sensor and a light detector are mounted on first and second spacers, which in turn are mounted to a top surface of an integrated circuit die-attached to a substrate. An optically-transmissive infrared pass compound is molded over the ambient light sensor, the light detector, the integrated circuit, alight emitter and peripheral portions of the substrate. Next, an optically non-transmissive infrared cut compound is molded to over the optically-transmissive infrared pass compound to provide a miniaturized optical proximity sensor having no metal shield but exhibiting very low crosstalk characteristics.
摘要:
Various embodiments of an optical proximity sensor having a lead frame and no overlying metal shield are disclosed. In one embodiment, a light emitter and a light detector are mounted on a lead frame comprising a plurality of discrete electrically conductive elements having upper and lower surfaces, at least some of the elements not being electrically connected to one another. An integrated circuit is die-attached to an underside of the lead frame. An optically-transmissive infrared pass compound is molded over the light detector and the light emitter and portions of the lead frame. Next, an optically non-transmissive infrared cut compound is molded over the optically-transmissive infrared pass compound to provide an optical proximity sensor having no metal shield but exhibiting very low crosstalk characteristics.
摘要:
Various embodiments of an optical proximity sensor having a lead frame and no overlying metal shield are disclosed. In one embodiment, a light emitter and a light detector are mounted on a lead frame comprising a plurality of discrete electrically conductive elements having upper and lower surfaces, at least some of the elements not being electrically connected to one another. An integrated circuit is die-attached to an underside of the lead frame. An optically-transmissive infrared pass compound is molded over the light detector and the light emitter and portions of the lead frame. Next, an optically non-transmissive infrared cut compound is molded over the optically-transmissive infrared pass compound to provide an optical proximity sensor having no metal shield but exhibiting very low crosstalk characteristics.
摘要:
A proximity sensor includes a printed circuit board (PCB); a first cup and a second cup embedded in the PCB; an electromagnetic radiation transmitter operably mounted in the first cup; and an electromagnetic radiation receiver operably mounted in the second cup.
摘要:
A proximity sensor device is provided in compact unit that has the ability to sense or monitor in different directions, such as sensing or monitoring in both the vertical and horizontal directions. Methods are also provided. In an illustrative embodiment, the proximity sensor device includes a first transmitting/receiving pair and a second transmitting/receiving pair on a printed circuit board along with an IC to control the transmitters and receivers, as well as, in some embodiments, to provide signal filtering, amplification or other desired features.
摘要:
A proximity sensor device is provided in compact unit that has the ability to sense or monitor in different directions, such as sensing or monitoring in both the vertical and horizontal directions. Methods are also provided. In an illustrative embodiment, the proximity sensor device includes a first transmitting/receiving pair and a second transmitting/receiving pair on a printed circuit board along with an IC to control the transmitters and receivers, as well as, in some embodiments, to provide signal filtering, amplification or other desired features.
摘要:
A proximity sensor includes a printed circuit board (PCB); a first cup and a second cup embedded in the PCB; an electromagnetic radiation transmitter operably mounted in the first cup; and an electromagnetic radiation receiver operably mounted in the second cup.