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In order to overcome the limitations of conventional ultrasound endoscope, we propose to develop a capsule ultrasound (CUS) device: an ingestible and disposable pill to inspect the multiple layers of the entire gastrointestinal (GI) tract as well as its surrounding organs, and to provide a convenient method for diagnosing GI diseases, such as abdominal cancers and lesions. The CUS device is composed...
To overcome the limitations of conventional ultrasound endoscopy, we developed a capsule ultrasound (CUS) device: an ingestible and disposable pill to inspect the multiple layers of the entire gastrointestinal (GI) tract and to provide a convenient method for diagnosing GI diseases. The CUS device was composed of three building blocks: the cylindrical capacitive micromachined ultrasonic transducer...
We are developing a capsule ultrasound (CUS) device - a pill with the capability to scan the gastrointestinal (GI) tract through ultrasound. In this paper, we discuss the design and fabrication of the main components of the CUS device including the CMUT array, front-end electronics, and the wireless transmitter. We demonstrate a successfully fabricated 128-element CMUT array with polydimethylsiloxane...
We are developing a capsule ultrasound (CUS) device to serve as a wireless, portable, and ultrasonic pill for investigating the multiple layers of the complete gastrointestinal (GI) tract, in particular, the small intestine. This capsule will acquire ultrasound images with 360 degrees field-of-view (FOV) and a penetration depth of 5 cm using a 128-element and cylindrically-shaped capacitive micromachined...
We propose a robust hardware based methodology for efficient bias temperature instability recovery for SRAM designs. The methodology exploits existing memory infrastructure to enable fast and reliable cell data flipping. Most importantly, the proposed methodology allows for localized write back and inverted read operations thereby eliminating the need for explicit inversion. A detailed analysis illustrates...
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