A smart approach for process variation correlation modeling

Lin, Chung-Kai; Hsiao, Cheng; Chan, Weimin; Jeng, Min-Chie

doi:10.1109/sispad.2011.6034966

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…A pixel size of CMOS array detector should be comparable to its wavelength so that the width of the array detector for real-time imaging at sub-THz is usually bigger than single 6-inch wafer. The devices on the same wafer show the maximum 20% characteristic variation in MOSFET and the maximum 30% characteristic variation in resistors [ 8 ]. Therefore, the fabrication variation of pixels is inevitable.…”

Section: Introductionmentioning

confidence: 99%

Signal-Conditioning Block of a 1 × 200 CMOS Detector Array for a Terahertz Real-Time Imaging System

Yang

Lee²,

Han³

2016

Sensors

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A signal conditioning block of a 1 × 200 Complementary Metal-Oxide-Semiconductor (CMOS) detector array is proposed to be employed with a real-time 0.2 THz imaging system for inspecting large areas. The plasmonic CMOS detector array whose pixel size including an integrated antenna is comparable to the wavelength of the THz wave for the imaging system, inevitably carries wide pixel-to-pixel variation. To make the variant outputs from the array uniform, the proposed signal conditioning block calibrates the responsivity of each pixel by controlling the gate bias of each detector and the voltage gain of the lock-in amplifiers in the block. The gate bias of each detector is modulated to 1 MHz to improve the signal-to-noise ratio of the imaging system via the electrical modulation by the conditioning block. In addition, direct current (DC) offsets of the detectors in the array are cancelled by initializing the output voltage level from the block. Real-time imaging using the proposed signal conditioning block is demonstrated by obtaining images at the rate of 19.2 frame-per-sec of an object moving on the conveyor belt with a scan width of 20 cm and a scan speed of 25 cm/s.

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Section: Introductionmentioning

confidence: 99%

Signal-Conditioning Block of a 1 × 200 CMOS Detector Array for a Terahertz Real-Time Imaging System

Yang

Lee²,

Han³

2016

Sensors

View full text Add to dashboard Cite

show abstract

“…Accurate and appropriate variation modeling has become one of the critical issues for design enablement [1,2]. The detailed partition for different types of variation sources have been discussed and modeled, including local variation, global variation and variation correlation [3,4]. Traditionally, circuit designers use the corner model to define the worst-case design envelope.…”

Section: Introductionmentioning

confidence: 99%