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41.25 Information Sensing Technologies(IST)
Displaying 1-6 of 6 articles from this issue
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Pages Cover1-
Published: 2017
Released on J-STAGE: July 21, 2021
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (111K) -
Pages Cover2-
Published: 2017
Released on J-STAGE: July 21, 2021
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (222K) -
Sayuri YOKOYAMA, Masayuki IKEBE, Sokuzinn NA, Shinya TAKAMAEDA, Masato ...Session ID: IST2017-42
Published: 2017
Released on J-STAGE: July 21, 2021
CONFERENCE PROCEEDINGS FREE ACCESSWe propose a Single-Slope ADC with a time to digital converter(TDC) that uses a quadrature-phase-detection instead of a multi-phase clock. The TDC that uses a multi-phase clock is often used in previous studies. We designed and fabricated a 12-bit ADC which consists of the 3-bit TDC and the 9-bit Single-Slope ADC, by using a 0.18-μm CMOS process. Specifically, it consists of an amp, latched comparators, an encoder, a 9-bit counter, and a data buffer for Correlated Double Sampling(CDS). In a previous study, 3-bit TDC has 4 stages. However, in this study, the TDC has 2 stages. We also confirmed time variation reduction of shoot-through current by Spectre simulation.View full abstractDownload PDF (537K) -
SOI image sensor for ion flight time measurement using thermal noise suppressing sample hold circuitSeokjin NA, Masayuki IKEBE, ｓayuri YOKOYAMA, ｓhinya TAKAMAEDA, masato ...Session ID: IST2017-44
Published: 2017
Released on J-STAGE: July 21, 2021
CONFERENCE PROCEEDINGS FREE ACCESSIn the biotechnology / medical field, simultaneous measurement technology of spatial distribution for each mass of various substances has been expected to be applied to rapid pathological diagnosis. In imaging mass spectrometry, it is important to develop a time of flight sensor that can simultaneously detect ion position with high spatial resolution and high temporal resolution at high framerate. In this research, we develop a pixel that acquires the voltage level according to the ion arrival time using ramp signal. In this circuit, holding of thermal noise becomes a problem. Therefore, we propose a method for suppressing thermal noise by interlocking the ramp signal with the soft reset mechanism. The proposed pixel circuit size was 20 μm x 20 μm.View full abstractDownload PDF (946K) -
Shota HIRAMATSU, Kosuke WAKITA, Seokjin NA, Sayuri YOKOYAMA, Masayuki ...Session ID: IST2017-48
Published: 2017
Released on J-STAGE: July 21, 2021
CONFERENCE PROCEEDINGS FREE ACCESSWe propose a Si–CMOS terahertz image sensor to resolve the lack of low-cost and small-size detectors. The imager chip consists of an imaging pixel array and column ADCs. The imaging pixel consists of an on-chip antenna and an amplifier acting as envelope detector. The pixel used a microstrip patch antenna for receiving THz waves. However, these antennas’ narrow bandwidth and large ground-plane size cause major problems. We introduce an on-chip folded-slot antenna to reduce the pixel size, while keeping the gain. As a result, we successfully reduced the size of the imaging pixel, while keeping an antenna gain of 0 dBi over a broader bandwidth than the microstrip patch antenna. In this paper, we report it in detail.View full abstractDownload PDF (697K) -
Pages 95-
Published: 2017
Released on J-STAGE: July 21, 2021
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (131K)
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