Printed Circuits with Embedded Resistive Thermal Devices

    公开(公告)号:US20250036176A1

    公开(公告)日:2025-01-30

    申请号:US18903894

    申请日:2024-10-01

    Applicant: Apple Inc.

    Inventor: Anne M. Mason

    Abstract: An electronic device may include a printed circuit with a surface-mounted component. The component may produce resistive heating within the printed circuit. Resistive thermal devices (RTDs) may be embedded within the printed circuit. An RTD may at least partially overlap the electrical component. The RTD may include contact pads on a flexible substrate and a meandering conductive trace between the contact pads. The trace may have a resistance varying linearly as a function of temperature. A data acquisition system (DAQ) may measure the resistance of the RTD. Control circuitry may identify the temperature of the printed circuit based on the resistance of the RTD measured by the DAQ and may reduce power consumption by the component when the temperature exceeds a threshold. This may serve to prevent overheating in the printed circuit over time, thereby maximizing the operating life of the printed circuit.

    Chassis cut-out to improve reliability and performance for cameras including bearing structures

    公开(公告)号:US12212834B1

    公开(公告)日:2025-01-28

    申请号:US17929295

    申请日:2022-09-01

    Applicant: Apple Inc.

    Abstract: A device may have a multi-camera system including one or more camera modules. At least one camera module may include one or more lenses, an image sensor, and a chassis structure. The camera module may include a bearing structure including one or more stages moving on a plurality of rolling elements to allow the lenses and/or the image sensor to move in one or more directions. The chassis structure may form a limit for a span distance or length of a group of rolling elements. A portion of the chassis structure may include an opening to provide extra space to allow the span distance or length of the group of rolling elements to be extended, so as to reduce effects of raceway indentations on the rolling elements to the camera module performance.

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