نتایج جستجو برای: حسگر تصویر cmos

تعداد نتایج: 38990  

2015
T. Chitra

Abstract: In this paper, CMOS digitally controlled oscillator (DCO) design is analyzed for 4-16 bits. The CMOS DCO is designed based on a ring oscillator. Simulations of the analyzed DCO using 250nm CMOS technology achieve controllable different frequency range with a wide linearity. A 4-bit digitally controlled CMOS oscillator (DCO) design is best by adjusting the width of p-MOS and n-MOS devi...

2012
Yngvar Berg

In this paper we ultra low-voltage and high speed CMOS domino logic. For supply voltages below 500mV the delay for a ultra low-voltage NAND2 gate is aproximately 10% of a complementary CMOS inverter. Furthermore, the delay variations due to mismatch is much less than for conventional CMOS. Differential domino gates for AND/NAND and OR/NOR operation are presented. Keywords—Low-Voltage, High-Spee...

1997
Massoud Pedram Xunwei Wu

After analyzing the limitations of the traditional description of CMOS circuits at the gate level, this paper introduces the notions of switching and signal variables for describing the switching states of MOS transistors and signals in CMOS circuits, respectively. Two connection operations for describing the interaction between MOS transistors and signals and a new description for CMOS circuit...

2010
Fazal Noorbasha Ashish Verma A. M. Mahajan

This paper describes the parameter and characteristic analysis of Low power and High speed CMOS Logic Circuits in 90nm Technology. The proposed CMOS logic circuits consists only logic gates. CMOS circuit is fabricated in 0.12μm and 90nm CMOS technology. The supply voltage is 1.20V. The temperature was 27oC. We observed Inverter (NOT gate) properties MOS, Capacitance, Resistance, Inductance and ...

1998
Jonathan T.-Y. Chang Edward J. McCluskey

We investigate defects in CMOS domino gates and derive the test conditions for them. Very-Low-Voltage Testing can improve the defect coverage, which we define as the maximum detectable resistance, of intra-gate and inter-gate resistive shorts. We also propose a new keeper design for CMOS domino circuits. The new keeper design has low performance impact and is best useful for small CMOS domino g...

Journal: :IEICE Transactions 2006
Christian Jesús B. Fayomi Mohamad Sawan Gordon W. Roberts

This paper concerns the design, implementation and subsequent experimental validation of a low-voltage analog CMOS switch based on a gate-bootstrapped method. The main part of the proposed circuit is a new low-voltage and low-stress CMOS clock voltage doubler. Through the use of a dummy switch, the charge injection induced by the bootstrapped switch is greatly reduced resulting in improved samp...

Journal: :Nanotechnology 2008
M S Haque K B K Teo N L Rupensinghe S Z Ali I Haneef Sunglyul Maeng J Park F Udrea W I Milne

The direct deposition of carbon nanotubes on CMOS microhotplates is demonstrated in this paper. Tungsten microhotplates, fabricated on thin SOI membranes aside CMOS control circuitry, are used to locally grow carbon nanotubes by chemical vapour deposition. Unlike bulk heating of the entire chip, which could cause degradation to CMOS devices and interconnects due to high growth temperatures in e...

ژورنال: :علوم و فناوری های پدافند نوین 0
مصطفی نجفی m. najafi imam hossein universityدانشگاه جامع امام حسین(ع) سید حیدر موسوی s. h. musavi imam hossein universityدانشگاه جامع امام حسین(ع) تیمور نظام الاسلام t. nezamoleslam imam hossein universityدانشگاه جامع امام حسین(ع)

در این تحقیق از یک روش ساده برای تثبیت کووالانسی آنزیمروی الکترود کربن شیشه ای اصلاح شده با نانولوله کربنی استفاده گردید و یک بیوحسگر حساس برای تعیین سریع تری اتیل تیو فسفات (شبه عامل اعصاب (vx)) تهیه شد. نانولوله کربنی، واکنش هیدرولیز آنزیمی را در سطح الکترود بهبود بخشید و پاسخ حسگر ولتامتری را افزایش داد. تحت شرایط بهینه، بازداری تری اتیل تیو فسفات روی آنزیم استیل کولین استراز با افزایش غلظت ...

2017
Jen-Kuang Lee I-Shun Wang Chi-Hsien Huang Yih-Fan Chen Nien-Tsu Huang Chih-Ting Lin

Coronary artery disease and its related complications pose great threats to human health. In this work, we aim to clinically evaluate a CMOS field-effect biomolecular sensor for cardiac biomarkers, cardiac-specific troponin-I (cTnI), N-terminal prohormone brain natriuretic peptide (NT-proBNP), and interleukin-6 (IL-6). The CMOS biosensor is implemented via a standard commercialized 0.35 μm CMOS...

2011
Mohd Haris M. Khir Peng Qu Hongwei Qu

This paper reports a low-cost, high-sensitivity CMOS-MEMS piezoresistive accelerometer with large proof mass. In the device fabricated using ON Semiconductor 0.5 μm CMOS technology, an inherent CMOS polysilicon thin film is utilized as the piezoresistive sensing material. A full Wheatstone bridge was constructed through easy wiring allowed by the three metal layers in the 0.5 μm CMOS technology...

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