Abstract:
Electronic devices including a layer of polymeric material and solid semiconductor dies partially embedded in the layer are provided. The dies have first ends projecting away from the first major surface of the layer. The electronic devices can be formed by sinking the first ends of the dies into a major surface of a liner. A flowable polymeric material is filled into the space between the dies and solidified to form the layer of polymeric material. The first ends of the dies are exposed by delaminating the liner from the first ends of the dies. Electrical conductors are provided on the layer to connect the first ends of the dies.
Abstract:
Electronic devices including a layer of polymeric material and solid semiconductor dies partially embedded in the layer are provided. The dies have first ends projecting away from the first major surface of the layer. The electronic devices can be formed by sinking the first ends of the dies into a major surface of a liner. A flowable polymeric material is filled into the space between the dies and solidified to form the layer of polymeric material. The first ends of the dies are exposed by delaminating the liner from the first ends of the dies. Electrical conductors are provided on the layer to connect the first ends of the dies.
Abstract:
At least some aspects of the present disclosure direct to a thermoelectric tape. The thermoelectric tape comprises a substrate having a plurality of vias, a series of flexible thermoelectric modules connected in parallel, and two conductive buses running longitudinally along the thermoelectric tape. Each flexible thermoelectric module includes a plurality of p-type thermoelectric elements and a plurality of n-type thermoelectric elements. The series of flexible thermoelectric modules are electrically connected to the conductive buses.
Abstract:
A blower/filtration unit for a powered air purifying respirator (PAPR) includes a motor configured to operate according to a motor control algorithm. The blower/filtration unit also includes a first pressure sensor positioned at an inlet of the blower/filtration unit. The blower/filtration unit also includes a second pressure sensor positioned at an outlet of the blower/filtration unit. The blower/filtration unit also includes a motor controller that executes the motor control algorithm. The motor control algorithm determines a motor speed required to maintain an airflow rate based on signals from the first and second pressure sensors.
Abstract:
A solid state light having a shell forming an interior volume and with surface texture for redirecting light. A light section is coupled to the shell, and a light source board in the light section includes at least one solid state light source such as an LED. The shell, light section, and light source board have apertures for providing an air cooling channel through the light. The solid state light source transmits light into the interior volume, and the light exits from the shell and is redirected by the surface texture, providing for various light distribution curves of the light.
Abstract:
Systems and methods for monitoring the status of air filters are provided. One or more thermoelectric sensors are provided to have an upstream sensing surface positioned adjacent the inlet surface of the air filter, and a downstream sensing surface positioned adjacent the outlet surface of the air filter. Sensing circuitry are connected to the thermoelectric sensors, configured to receive signals from the thermoelectric sensors and process the signals to obtain status information of the air filter.
Abstract:
Systems and methods for monitoring the status of air filters are provided. One or more thermoelectric sensors are provided to have an upstream sensing surface positioned adjacent the inlet surface of the air filter, and a downstream sensing surface positioned adjacent the outlet surface of the air filter. Sensing circuitry are connected to the thermoelectric sensors, configured to receive signals from the thermoelectric sensors and process the signals to obtain status information of the air filter.
Abstract:
At least some aspects of the present disclosure direct to a flexible thermoelectric module. The thermoelectric module includes a flexible substrate, a plurality of p-type thermoelectric elements and a plurality of n-type thermoelectric elements, a first set of connectors, and a second set of connectors. The substrate includes a plurality of vias filled with an electrically conductive material or thermoelectric elements. In some cases, the plurality of p-type thermoelectric elements and the plurality of n-type thermoelectric elements are disposed on the flexible substrate.
Abstract:
A blower/filtration unit for a powered air purifying respirator (PAPR) is presented that includes a motor configured to operate in a standard mode and in a high magnetic field (HMF) mode. The unit also includes a magnetic field sensor. The unit also includes a controller comprising a control mode switching function. The controller executes the control function upon detection of a magnetic field strength that exceeds a reference threshold magnetic field strength. The control function switches the motor operation from the standard mode to the HMF mode.