Abstract:
An assembly (10) for liquid cooling electronics by direct submersion into circulated engine coolant that includes an epoxy material (48) dispensed around leads (42,44) of electronics devices (combination of 34, 36, 38) in a manner effective to mechanically secure the electronics devices to the assembly (10) and prevent engine coolant leakage around the leads, and a Parylene™ coating layer (50) deposited in a manner effective to protect the electronic device (34) from electrically conductive engine coolant such as ethylene glycol. Such an assembly (10) is useful in hybrid electric vehicles that have engine coolant available from the vehicle's internal combustion engine.
Abstract:
An assembly (10) for liquid cooling electronics by direct submersion into circulated engine coolant that includes an epoxy material (48) dispensed around leads (42,44) of electronics devices (combination of 34, 36, 38) in a manner effective to mechanically secure the electronics devices to the assembly (10) and prevent engine coolant leakage around the leads, and a Parylene™ coating layer (50) deposited in a manner effective to protect the electronic device (34) from electrically conductive engine coolant such as ethylene glycol. Such an assembly (10) is useful in hybrid electric vehicles that have engine coolant available from the vehicle's internal combustion engine.
Abstract:
The laser (20) of a laser-generated windshield display (10) is controlled (22, 46) to initially deflect the laser beam in the direction of a reflective target (26) disposed outside a display region (24) of the windshield (12), and a sensor (28) disposed in a reflection path of the target (26) is sampled (22, 48) to detect the presence of a feedback signal that occurs when the laser beam impinges on the sensor (28). If the feedback signal is detected, the laser beam is deflected onto the display region (24) to generate a driver display (22, 48-52); but if the feedback signal is not detected, the laser (20) is automatically turned-off (22, 48, 58). Once the laser (22) is turned off for lack of a feedback signal, the control is repeated following a specified delay interval (22, 60, 62) so that the driver display will automatically resume the when the condition that prevented generation of the feedback signal is cured.
Abstract:
A liquid cooled power electronics assembly (10) configured to use electrically conductive coolant (16) to cool power electronic devices that uses dielectric plates sealed with a metal sleeve around the perimeter of the dielectric plates to form a device assembly (10). The configuration allows for more direct contact between the electronic device and the coolant (16), while protecting the electronic device from contact with potentially electrically conductive coolant (16). Material used to form the dielectric plates and the housing (18) are selected to have similar coefficients of thermal expansion (CTE) so that the reliability of the seals is maximized.
Abstract:
A volumetric display (10) that includes a dispersion block (12) defining a plurality of voxels (18) that are characterized as being visibly apparent when illuminated by impinging light, a projector (20) configured to project one or more light rays (16) for illuminating one or more of the plurality of voxels (18), and a plurality of arrays (22) of electrowetting mirrors (24) arranged about the dispersion block (12), wherein each electrowetting mirror is operable to reflect a light ray (16a) from the projector (20) toward a selected voxel (26). The arrays (22) of electrowetting mirrors (24a1) provide for a volumetric display (10) that is readily focused.
Abstract:
A system and method to display a plurality of different images at multiple distinct locations using a single image projector and an image propagation control means to control a propagation pathway from the projector to a display at each location.
Abstract:
An electronic assembly (200,400,400A) includes a bare IC die or a leadless electronic component (406A) having at least one electrically conductive contact formed on a surface of the die (106,406) or the component (406A) and a leadframe (102) or a substrate (402,402A) having at least one electrically conductive trace. The conductive contact of the component (406A) is electrically and mechanically coupled to the conductive trace with a solder joint (108,408). The solder joint (108,408) includes a plurality of solid electrically conductive metal particles (110,410) having a substantially spherical shape and a diameter ranging from about one mil to about ten mils.
Abstract:
An electronic assembly (100) and/or a mold is constructed to reduce deflection and resultant damage to components and/or an associated printed circuit board (102) of the electronic assembly (100) when the electronic assembly (100) is overmolded.