Apple Inc.

Kevin R Richardson

Connor Raymond Duke

Benjamin A Bard

Zhong-Qing Gong

Ethan Larry Huwe

Michael B Nussbaum

Paul Aurelio Martinez

Kirill Kalinichev

Yanchu Xu

Curtis C Mead

Kieran Poulain

Jason Brinsfield

Mei Zhang

Gemin Li

Charles L Greenlee

Sung Woo Yoo

Kyle Tse

Shawn G Fink

Nelson J Kottke

Susheel Teja Gogineni

Katherine I Pregler

Samantha K Young

Connor R Duke

The disclosed technology relates to a battery utilizing an indicator to orient an unopposed portion of a cathode or anode with respect to a battery can, and a tag to generate an electromagnetic field to mitigate or eliminate an electromagnetic field generated by the unopposed portion of the cathode or anode. The battery includes a wound set of layers including a cathode, an anode, and a separator; a can housing the wound set of layers; a lid disposed atop of the can to enclose the wound set of layers within the can; and a tag coupled to the lid. An unopposed portion of the cathode or anode generates a first electromagnetic field. The tag generates a second electromagnetic field to oppose the first electromagnetic field.

System and method for reducing electrical interference of a battery cell

A printed circuit board (PCB) assembly having several electronic components mounted on a PCB and a damping layer covering the electronic components, is disclosed. Embodiments of the PCB assembly include an overmold layer constraining the damping layer against the PCB. Embodiments of the PCB assembly include an interposer between a capacitor of the electronic components and the PCB. Other embodiments are also described and claimed.

Printed circuit board assembly having a damping layer

A Non-Uniform Dielectric Layer, Multi-Layer-Ceramic-Capacitor (MLCC) has upper and lower dielectric layers separating upper and lower electrode layers, where the lower dielectric layers have a greater vertical thickness than the upper dielectric layers to reduce piezoelectric effect driven capacitor reaction forces on a printed circuit board (PCB) on which the capacitor is mounted. Such an MLCC may include an upper set of dielectric layers that separate adjacent pairs of upper electrode layers in a top portion of the MLCC, and a lower set of dielectric layers that separate adjacent pairs of lower electrode layers in a bottom portion of the MLCC. A bottom portion of the MLCC may be mounted on a PCB. The thickness of the lower dielectric layers may be between 1.5 and 3.5 times greater than the upper dielectric layers to reduce piezoelectric effect driven capacitor reaction forces in the audio range of human hearing.

Non-uniform dielectric layer capacitor for vibration and acoustics improvement

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Sunnyvale, CA, United States of America

Kevin R Richardson