Abstract:
An inductor (30,130) and method (100) of containing a magnetic field is provided. The inductor (30,130) includes a first set of layers (32,132) wound in a first predetermined direction, wherein each layer of the first set of layers (32,132) is electrically connected to one another, and a second set of layers (34,134) wound in a second predetermined direction, wherein each layer of the second set of layers (34,134) is electrically connected to one another and the first set of layers (32,132), and the second set of layers (34,134) is between a top layer (32A,132A) and a bottom layer (32B,132B), such that the top layer (32A,132A) forms a first pair with a first layer of the second set of layers (34,134), and the bottom layer (32B,132B) forms a second pair with a second layer of the second set of layers (34,134) so that the magnetic field is substantially contained, such as to remain substantially within a gap (35,135) defined between each layer of the pairs of layers.
Abstract:
A microwave communication package (10) is constructed on an electrically conducting base plate (12) having a first side (14) defining a base plate cavity (16), with an antenna apparatus (40) mounted on an opposite, second side (18). A dielectric substrate (20) on the first side of the base plate covers the base plate cavity; and sealing apparatus (72) contacting the dielectric substrate and the base plate completely around the base plate cavity hermetically seals the cavity. Circuitry (30, 32) mounted on a surface of the substrate within the base plate cavity includes one or more microstrip lines (54) communicating components (30) to one or more waveguides comprising openings (50) extending through the base plate; and the waveguides are coupled at their opposite ends to the antenna apparatus.
Abstract:
A circuit board assembly (40,50) having a laminate construction of multiple layers (12), such as a LTCC ceramic substrate (10), with conductor lines (30) between adjacent pairs of layers (12). A heat sink (22) is bonded to a first surface (26) of the substrate (10), and a cavity (24) is defined by and between the heat sink (22) and the substrate (10) such that a base wall (28) of the cavity (24) is defined by one of the layers (12) with conductor lines (30) thereof being present on the base wall (28). A surface-mount circuit device (14) is received within the cavity (24), mounted to the base wall (28), and electrically connected to the conductor lines (30) on the base wall (28). The device (14) is received within the cavity (24) such that a surface of the device (14) contacts a surface region of the heat sink (22). The surface of the device (14) is bonded to the surface region of the heat sink (22) to provide a substantially direct thermal path from the device (14) to the heat sink (22).
Abstract:
An electronic package (10) having enhanced heat dissipation is provided exhibiting dual conductive heat paths (40, 42) in opposing directions. The package (10) includes a substrate (18) and a semiconductor device (12) mounted to the substrate (18). The semiconductor device (12) has electrical circuitry a first surface, and a second surface oppositely disposed from the first surface. A thermally conductive heat sink (30) is assembled over the semiconductor device (12) such that a cavity (32) is formed between the semiconductor device (12) and the heat sink (30). A thermally conductive and electrically insulative material (36) is disposed in the cavity (32) between the semiconductor device (12) and the heat sink (30).
Abstract:
A surface mountable transition block (10) for perpendicular transitions between a microstrip (16) or stripline and a waveguide (20). The transition block (10) configuration allows for a reduction in the overall cost of a microwave circuit assembly (12) because the circuit board (14) to which the transition block (10) is attached can be an FR-4 type circuit board (14) as opposed to more expensive microwave circuit board (14) materials.
Abstract:
A vision system in a vehicle (10) and a method (600) for operating the system. The system displays a field of view that is a portion of an image (200) of an area (24) proximate to the vehicle (10). The system includes an object detection means that provides an indication of an object being present in the area (24) proximate to the vehicle (10). The field of view is selected at least in part based on the detection of the object, such as directing the field of view toward the object so the vehicle (10) driver (12) can more easily discern the presence of the object in a display (14).
Abstract:
An electronic package (10) having enhanced heat dissipation is provided exhibiting dual conductive heat paths (40, 42) in opposing directions. The package (10) includes a substrate (16) having electrical conductors thereon and a flip chip (12) mounted to the substrate (16). The flip chip (12) has a first surface, solder bumps (14) on the first surface, and a second surface oppositely disposed from the first surface. The flip chip (12) is mounted to the substrate (16) such that the solder bumps (14) are registered with the conductors on the substrate (16). The package (10) further includes a stamped metal heat sink (30) in heat transfer relationship with the second surface of the flip chip (12). The heat sink (30) includes a cavity (32) formed adjacent to the flip chip (12) containing a thermally conductive material (34).
Abstract:
A microwave communication package (10) is constructed on an electrically conducting base plate (12) having a first side (14) defining a base plate cavity (16), with an antenna apparatus (40) mounted on an opposite, second side (18). A dielectric substrate (20) on the first side of the base plate covers the base plate cavity; and sealing apparatus (72) contacting the dielectric substrate and the base plate completely around the base plate cavity hermetically seals the cavity. Circuitry (30, 32) mounted on a surface of the substrate within the base plate cavity includes one or more microstrip lines (54) communicating components (30) to one or more waveguides comprising openings (50) extending through the base plate; and the waveguides are coupled at their opposite ends to the antenna apparatus.
Abstract:
An electronic package (10) having enhanced heat dissipation is provided exhibiting dual conductive heat paths (40, 42) in opposing directions. The package (10) includes a substrate (16) having electrical conductors thereon and a flip chip (12) mounted to the substrate (16). The flip chip (12) has a first surface, solder bumps (14) on the first surface, and a second surface oppositely disposed from the first surface. The flip chip (12) is mounted to the substrate (16) such that the solder bumps (14) are registered with the conductors on the substrate (16). The package (10) further includes a stamped metal heat sink (30) in heat transfer relationship with the second surface of the flip chip (12). The heat sink (30) includes a cavity (32) formed adjacent to the flip chip (12) containing a thermally conductive material (34).