Abstract:
Provided herein is an integrated device that includes a substrate, a die, a heat-dissipation layer located between the substrate and the die, and a first interconnect configured to couple the die to the heat-dissipation layer. The heat-dissipation layer may be configured to provide an electrical path for a ground signal. The first interconnect may be further configured to conduct heat from the die to the heat-dissipation layer. The integrated device may also include a second interconnect configured to couple the die to the substrate. The second interconnect may be further configured to conduct a power signal between the die and the substrate. The integrated device may also include a dielectric layer located between the heat-dissipation layer and the substrate, and a solder-resist layer located between the die and the heat-dissipation layer.
Abstract:
A method and apparatus for testing near field magnetic fields of electronic devices. The method comprises measuring a magnetic field using a loop antenna that is oriented in a first direction. The loop antenna is swept through a desired range of azimuth angles while measuring the magnetic field. Once the first direction testing is completed, the loop antenna is changed to a second orientation direction. The magnetic field is then measured in the second orientation direction and is swept through a desired range of orientation angles in the second direction. The apparatus provides a loop antenna connected to a coaxial probe, with the coaxial cable serving as the center conductor, and two outer conductors. An axle is mounted to the loop antenna and connected to a step motor. A servo motor is also provided for moving the arm assembly.
Abstract:
Some novel features pertain to an integrated device that includes a substrate, a first interconnect coupled to the substrate, and a second interconnect surrounding the first interconnect. The second interconnect may be configured to provide an electrical connection to ground. In some implementations, the second interconnect includes a plate. In some implementations, the integrated device also includes a dielectric material between the first interconnect and the second interconnect. In some implementations, the integrated device also includes a mold surrounding the second interconnect. In some implementations, the first interconnect is configured to conduct a power signal in a first direction. In some implementations, the second interconnect is configured to conduct a grounding signal in a second direction. In some implementations, the second direction is different from the first direction. In some implementations, the integrated device may be a package-on-package (PoP) device.
Abstract:
Systems and methods for EMC, EMI and ESD testing are described. A probe comprises a center conductor extending along an axis of the probe, a probe tip, and a shield coaxially aligned with the center conductor and configured to provide electromagnetic screening for the probe tip. One or more actuators may change the relative positions of the probe tip and shield with respect to a device under test, thereby enabling control of sensitivity and resolution of the probe.
Abstract:
A method and apparatus for testing integrated circuit resistors includes applying a variable source current to a resistive device under test (DUT), measuring the resistance of the resistive DUT as a function of the source current, and fitting the measured resistance to parameters of a polynomial parametric equation, wherein the parametric equation comprises a constant resistance at zero current bias plus a second order current coefficient of resistance multiplied by the square of the current.
Abstract:
One feature pertains to a multi-chip package that includes a substrate and an electromagnetic interference (EMI) shield coupled to the substrate. At least one integrated circuit is coupled to a first surface of the substrate. The EMI shield includes a metal casing configured to shield the package from radio frequency radiation, a dielectric layer coupled to at least a portion of an inner surface of the metal casing, and a plurality of signal lines. The signal lines are coupled to the dielectric layer and electrically isolated from the metal casing by the dielectric layer. At least one other integrated circuit is coupled to an inner surface of the EMI shield, and at least a portion of the inner surface of the EMI shield faces the first surface of the substrate. The signal lines are configured to provide electrical signals to the second circuit component.
Abstract:
A passive discrete device may include a first asymmetric terminal and a second asymmetric terminal. The passive discrete device may further include first internal electrodes extended to electrically couple to a first side and a second side of the first asymmetric terminal. The passive discrete device may also include second internal electrodes extended to electrically couple to a first side and a second side of the second asymmetric terminal.
Abstract:
Some novel features pertain to a device that includes a first integrated device package and a second integrated device package. The first integrated device package includes a first package substrate, a first integrated device, and a first configurable optical transmitter. The first configurable optical transmitter is configured to be in communication with the first integrated device. The first configurable optical transmitter is configured to transmit an optical beam at a configurable angle. The first configurable optical transmitter includes an optical beam source, an optical beam splitter, and a set of phase shifters coupled to the optical beam splitter. The set of phase shifters is configured to enable the angle at which the optical beam is transmitted. The second integrated device package includes a second package substrate, a second integrated device, and a first optical receiver configured to receive the optical beam from the first configurable optical transmitter.
Abstract:
A package-on-package (PoP) structure includes a first die, a second die, and a memory device electrically coupled to the first die and the second die by an interposer between the first die and the second die. The interposer includes copper-filled vias formed within a mold.