Abstract:
A miniature oxygen sensor makes use of paramagnetic properties of oxygen gas to provide a fast response time, low power consumption, improved accuracy and sensitivity, and superior durability. The miniature oxygen sensor disclosed maintains a sample of ambient air within a micro-channel formed in a semiconductor substrate. O2 molecules segregate in response to an applied magnetic field, thereby establishing a measurable Hall voltage. Oxygen present in the sample of ambient air can be deduced from a change in Hall voltage with variation in the applied magnetic field. The magnetic field can be applied either by an external magnet or by a thin film magnet integrated into a gas sensing cavity within the micro-channel. A differential sensor further includes a reference element containing an unmagnetized control sample. The miniature oxygen sensor is suitable for use as a real-time air quality monitor in consumer products such as smart phones.
Abstract:
One or more embodiments are directed to system in package (SiP) for optical devices, including proximity sensor packaging. One embodiment is directed to an optical sensor that includes a substrate and a sensor die. A through-hole extends through the substrate, and a trench is formed in a first surface of the substrate and is in fluid communication with the through-hole. The sensor die is attached to the first surface of the substrate and covers the first through-hole and a first portion of the trench. A second portion of the trench is left uncovered by the sensor die.
Abstract:
A method for making an optical proximity sensor includes forming a package top plate having an optical transmit opening and an optical receive opening extending therethrough, attaching an optical transmit element to the package top plate adjacent the optical transmit opening, and attaching an optical receive element to the package top plate adjacent the optical receive opening. A package body is formed onto the package top plate to define an optical transmit cavity receiving the optical transmit element and an optical receive cavity receiving the optical receive element.
Abstract:
A low-cost resin lens is disclosed for use in miniature cameras. The resin lens features a low profile that is particularly well-suited to consumer products such as smart phones. The resin lens is mounted to an integrated circuit die that is attached to a standard four-layer substrate. The integrated circuit die includes electronic and/or optoelectronic circuits to support digital image capture, transfer, and processing. Image correction software adjusts the image to correct for distortion introduced by the resin lens.
Abstract:
An integrated circuit (IC) device includes an IC and encapsulating material surrounding the IC. Leads are coupled to the IC and extend outwardly from sides of the encapsulating material, with each lead having three contiguous exposed segments with upper and lower bends defining a Z-shape. In another example, the leads include an upper horizontal segment, lower horizontal segment, and intermediate curved segment extending upwardly from the upper horizontal segment and downwardly to the lower horizontal segment.
Abstract:
The embodiments of the present disclosure provide a proximity sensor, an electronic apparatus and a method for manufacturing a proximity sensor. The proximity sensor comprises a substrate, a sensor chip, a light-emitting device, a non-transparent isolation structure and a non-transparent molding material, wherein the sensor chip is located on the substrate and electrically coupled to the substrate; the light-emitting device is located on the sensor chip and electrically coupled to the sensor chip; the non-transparent isolation structure is located on the sensor chip and isolates the light-emitting device from a sensor region of the sensor chip; and the non-transparent molding material at least partially covers the substrate, the sensor chip and the non-transparent isolation structure, such that a portion of the proximity sensor which is located right above the sensor region and the light-emitting device is not covered by the non-transparent molding material.
Abstract:
An electronic device is formed by depositing polyimide on a glass substrate. A conductive material is deposited on the polyimide and patterned to form electrodes and signal traces. Remaining portions of the electronic device are formed on the polyimide. A second polyimide layer is then formed on the first polyimide layer. The glass substrate is then removed, exposing the electrodes and the top surface of the electronic device.
Abstract:
An image sensor device includes a base having a rectangular shape and comprising first contacts and a reference voltage contact extending along a first side thereof, a housing carried by the base, and an image sensor integrated circuit (IC) carried by the base within the housing and having an image sensing surface. A focus cell is within the housing, aligned with the image sensing surface, and includes second contacts. An electromagnetic compatibility (EMC) shield is carried by the housing and includes a top panel having an opening therein aligned with the focus cell, and side panels extending downwardly from the top panel. Conductive leads extend between one of the first contacts and a corresponding one of the second contacts. A reference conductive lead extends between the reference voltage contact and the EMC shield.
Abstract:
A gas sensor device may include a gas sensor integrated circuit (IC) having a gas sensing surface, and bond pads adjacent to the gas sensing surface, and a frame having gas passageways extending therethrough adjacent the gas sensing surface. The gas sensor device may include leads, each having a proximal end spaced from the frame and bonded to a respective bond pad, and a distal end extending downwardly from the proximal end, and encapsulation material filling the space between the proximal ends of the leads and the frame.
Abstract:
A bio-fluid test strip includes a fluid receiving area and a contact pad area for interfacing with a fluid sensing device. The test strip includes a fluid sensing electrodes and a first temperature sensing resistor in the fluid receiving area. The test strip further includes a second temperature sensing resistor in the contact pad area. The first and second temperature sensing resistors together provide an indication of the temperature difference between the fluid sensing area and ambience.