Apple Inc.

Yun X Ma

Richard Yeh

Kuolung Lei

Krishna Prasad Vummidi Murali

Tongbi T Jiang

Wei Chen

Jun Zhai

Brad G Boozer

James G Horiuchi

Jie-Hua Zhao

David MacNeil

William Scott Lee

Ashwin Balasubramanian

Caleb C Han

Mark G Walsh

An electronic device, such as a smart watch, incorporating a fluid-based pressure-sensing device is disclosed. The fluid-based pressure-sensing device includes an enclosure, a pressure sensor, a diaphragm and a sensing medium. The enclosure includes an opening and the pressure sensor is disposed inside the enclosure. The diaphragm hermetically seals the opening, and the sensing medium transfers a pressure exerted on the diaphragm to the pressure sensor. The sensing medium can be liquid oil filling a space of the enclosure, and the diaphragm is a polymer material. The pressure-sensing device may sense an environmental pressure, which may be used by the electronic device to modify its operations, change information that is displayed, and so on.

Wearable electronic device with fluid-based pressure sensing

A waterproofed environmental sensing device with water detection provisions includes an environmental sensor to sense one or more environmental properties. The device further includes an electronic integrated circuit implemented on a substrate and coupled to the environmental sensor via a wire bonding. An air-permeable cap structure is formed over the environmental sensor, and a protective layer is formed over the wire bonding to protect the wire bonding against damage.

Water proofing and water detection schemes for MEMS-based environmental sensing devices

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Cupertino, CA, United States of America

Yun X Ma