Superhydrophobic property enhancement on guard ring micro-patterned PDMS with simple flame treatment

2020 ◽  
Vol 59 (SI) ◽  
pp. SIIJ05 ◽  
Author(s):  
Nithi Atthi ◽  
Witsaroot Sripumkhai ◽  
Pattaraluck Pattamang ◽  
Oraphan Thongsook ◽  
Rattanawan Meananeatra ◽  
...  
Keyword(s):  
Guard Ring ◽  
Superhydrophobic Property

Erratum: High-gain GaInP/GaAs heterojunction phototransistor utilising guard-ring structure

1989 ◽  
Vol 25 (4) ◽  
pp. 296
Author(s):  
J.K. Twynam ◽  
P.A. Claxton ◽  
R.C. Woods ◽  
D.R. Wight
Keyword(s):  
High Gain ◽  
Ring Structure ◽  
Guard Ring

scholarly journals Novel Stable Capacitive Electrocardiogram Measurement System

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3668
Author(s):  
Chi-Chun Chen ◽  
Shu-Yu Lin ◽  
Wen-Ying Chang
Keyword(s):  
Measurement System ◽  
Input Resistance ◽  
Voltage Divider ◽  
Motion Artifact ◽  
Guard Ring ◽  
Capacitive Sensing ◽  
Ecg Signals ◽  
Optimal Input ◽  
Electrocardiogram Ecg ◽  
Mode Interference

This study presents a noncontact electrocardiogram (ECG) measurement system to replace conventional ECG electrode pads during ECG measurement. The proposed noncontact electrode design comprises a surface guard ring, the optimal input resistance, a ground guard ring, and an optimal voltage divider feedback. The surface and ground guard rings are used to reduce environmental noise. The optimal input resistor mitigates distortion caused by the input bias current, and the optimal voltage divider feedback increases the gain. Simulated gain analysis was subsequently performed to determine the most suitable parameters for the design, and the system was combined with a capacitive driven right leg circuit to reduce common-mode interference. The present study simulated actual environments in which interference is present in capacitive ECG signal measurement. Both in the case of environmental interference and motion artifact interference, relative to capacitive ECG electrodes, the proposed electrodes measured ECG signals with greater stability. In terms of R–R intervals, the measured ECG signals exhibited a 98.6% similarity to ECGs measured using contact ECG systems. The proposed noncontact ECG measurement system based on capacitive sensing is applicable for use in everyday life.

Characterization of Thermal Oxides of Laser Annealed Polysilicon

1981 ◽  
Vol 4 ◽  
Author(s):  
Rajiv R. Shah ◽  
Robert Mays ◽  
D. Lloyd Crosthwait
Keyword(s):  
Laser Processing ◽  
Single Crystal Silicon ◽  
Electrical Characterization ◽  
Device Fabrication ◽  
Breakdown Field ◽  
Guard Ring ◽  
Crystal Silicon ◽  
Process Sequence ◽  
Thermal Oxide

ABSTRACTWe report an investigation of the effects of laser processing on the thermal oxides of polysilicon. LPCVD polysilicon, 500 nm thick, deposited on 500 nm thermal oxide of single crystal silicon was laser processed at various stages in the process sequence for device fabrication. Effects of CW Ar+ and pulsed 1.06 and 0.53 μm laser processing were investigated. Laser annealed polysilicon was oxidized in a steam ambient. Using a second level of polysilicon, guard ring diode and capacitors were fabricated. Electrical characterization revealed an improvement in breakdown field strengths of these oxides without deleterious effects on any of the associated interfaces.

Qualitative evaluation of uterine contractions recorded by a double guard-ring tocodynamometer

1991 ◽  
Vol 165 (5) ◽  
pp. 1282-1286 ◽  
Author(s):  
Masahiro Shinmoto ◽  
Tatsuhiko Kawarabayashi ◽  
Masahiko Ikeda ◽  
Hajime Sugimori
Keyword(s):  
Qualitative Evaluation ◽  
Guard Ring ◽  
Uterine Contractions

Surface barrier lithium drifted silicon detector with evaporated guard ring

1970 ◽  
Vol 77 (1) ◽  
pp. 21-28 ◽  
Author(s):  
E. Belcarz ◽  
J. Chwaszczewska ◽  
M. Słapa ◽  
M. Szymczak ◽  
J. Tys
Keyword(s):  
Silicon Detector ◽  
Surface Barrier ◽  
Guard Ring

Superhydrophobic and superoleophobic property enhancement on guard ring micro-patterned PDMS with simple flame treatment

2021 ◽  
Author(s):  
NITHI ATTHI ◽  
Witsaroot Sripumkhai ◽  
Pattaraluck Pattamang ◽  
Oraphan Thongsook ◽  
Rattanawan Meananeatra ◽  
...  
Keyword(s):  
Guard Ring

A CAD investigation of metal-overhang on multiple guard ring design for high voltage operation of Si sensors

2002 ◽  
Vol 17 (12) ◽  
pp. 1226-1237 ◽  
Author(s):  
Ashutosh Bhardwaj ◽  
Kirti Ranjan ◽  
Namrata ◽  
Sudeep Chatterji ◽  
Ajay K Srivastava ◽  
...  
Keyword(s):  
High Voltage ◽  
Guard Ring

High photon detection efficiency single photon avalanche diode in 0.18 μm standard CMOS process

2017 ◽  
Vol 31 (17) ◽  
pp. 1750193 ◽  
Author(s):  
Wei Wang ◽  
Xiaoyuan Bao ◽  
Li Chen ◽  
Ting Chen ◽  
Guanyu Wang ◽  
...  
Keyword(s):  
Breakdown Voltage ◽  
Bias Voltage ◽  
Detection Efficiency ◽  
Single Photon ◽  
Cmos Process ◽  
Guard Ring ◽  
Reverse Bias Voltage ◽  
Photon Detection ◽  
Standard Cmos Process ◽  
Photon Detection Efficiency

This paper proposed a single photon avalanche diodes (SPADs) designed with 0.18 [Formula: see text] standard CMOS process. One of the major challenges in CMOS SPADs is how to raise the low photon detection efficiency (PDE). In this paper, the device structure and process parameters of the CMOS SPAD are optimized so as to improve PDE properties which have been investigated in detail. The CMOS SPADs are designed in p+/n-well/deep n-well (DNW) structure with the p-sub and the p-well guard ring (GR). The simulation results show that with the p-well GR, the quantum efficiency (QE) is about 80% with the breakdown voltage of 12.7 V, the unit responsivity is as high as 0.38 A/W and the PDE of 51% and 53% is obtained when the excess bias is at 1 V and 2 V, respectively. The dark count rate (DCR) is 6.2 kHz when bias voltage is 14 V. With the p-sub GR, the breakdown voltage is 13 V, the unit responsivity is up to 0.26 A/W, the QE is 58%, the PDE is 33% and 37% at excess bias of 1 V and 2 V, respectively. The DCR is 3.4 kHz at reverse bias voltage of 14 V.

Influence of Guard-Ring Structure on the Dark Count Rates of Silicon Photomultipliers

2013 ◽  
Vol 34 (3) ◽  
pp. 336-338 ◽  
Author(s):  
Woo-Suk Sul ◽  
Chae-Hun Lee ◽  
Gyu-Seong Cho
Keyword(s):  
Ring Structure ◽  
Guard Ring ◽  
Dark Count ◽  
Silicon Photomultipliers
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