High-Voltage Analog System for a Mobile NAND Flash

High-voltage analog circuits, including a novel high-voltage regulation scheme, are presented with emphasis on low supply voltage, low power consumption, low area overhead, and low noise, which are key design metrics for implementing NAND Flash memory in a mobile handset. Regulated high voltage gene...

Full description

Saved in:
Bibliographic Details
Published in:IEEE journal of solid-state circuits 2008-02, Vol.43 (2), p.507-517
Main Authors: YONG HOON KANG, KIM, Jin-Kook, SU CHANG JEON, JANG, Pyungmoon, SANG HOON LEE, LEE, You-Sang, KIM, Min-Seok, LEE, Jin-Yub, YUN HO CHOI, SANG WON HWANG, JOON YOUNG KWAK, PARK, Jun-Yong, KIM, Daeyong, CHAN HO KIM, JONG YEOL PARK, JEONG, Yong-Taek, JONG NAM BAEK
Format: Article
Language:English
Subjects:
Analog circuit
Analog circuits
Analytical models
Applied sciences
charge pump
Charge pumps
Circuit noise
Circuit properties
Circuit simulation
Circuits
Design engineering
Electric potential
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Energy consumption
Exact sciences and technology
high-voltage analog circuit
high-voltage charge pump
high-voltage generator
high-voltage regulator
Integrated circuits
Integrated circuits by function (including memories and processors)
low ripple regulator
Low voltage
low-power NAND Flash
low-voltage NAND Flash
low-voltage oscillator
mixed-signal system on a chip
mobile NAND Flash
NAND Flash
oscillator
Oscillators
Oscillators, resonators, synthetizers
Power supplies
Regulators
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Signal convertors
Simulation
system on a chip
Voltage
voltage regulator
Voltage-controlled oscillators
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:High-voltage analog circuits, including a novel high-voltage regulation scheme, are presented with emphasis on low supply voltage, low power consumption, low area overhead, and low noise, which are key design metrics for implementing NAND Flash memory in a mobile handset. Regulated high voltage generation at low supply voltage is achieved with optimized oscillator, high-voltage charge pump, and voltage regulator circuits. We developed a design methodology for a high-voltage charge pump to minimize silicon area, noise, and power consumption of the circuit without degrading the high-voltage output drive capability. Novel circuit techniques are proposed for low supply voltage operation. Both the oscillator and the regulator circuits achieve 1.5 V operation, while the regulator includes a ripple suppression circuit that is simple and robust. Through the paper, theoretical analysis of the proposed circuits is provided along with Spice simulations. A mobile NAND Flash device is realized with an advanced 63 nm technology to verify the operation of the proposed circuits. Extensive measurements show agreement with the results predicted by both analysis and simulation.
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2007.914327