Browsing by Author "Li, Ling"

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Demonstration of 3D Vertical RRAM with Ultra Low-leakage, High-selectivity and Self-compliance Memory Cells
(2015)
Luo, Qing
;
Xu, Xiaoxin
;
Liu, Hongtao
;
Lv, Hangbing
;
Gong, Tiancheng
Developing high performance self-selective cell (SSC) is one of the most critical issues of the integration of 3D vertical RRAM (V-RRAM). In this work, a four-layer V-RRAM array, with high performance HfO2/mixed ionic and electronic conductor (MIEC) bilayer SSC, was demonstrated for the first time. Several salient features were achieved, including ultra-low half-select leakage (<0.1 pA), very high nonlinearity (>10(3)), low operation current (nA level), self-compliance, high endurance (>10(7)), and robust read/write disturbance immunity.
RGB LED Backlight of Color Sequential Display with Precise Current-Balance Control Technique
(2009)
Chiu, Chia-Lin
;
Lee, Yu-Huei
;
Hsieh, Chun-Yu
;
Ho, Ming-Tsung
;
Chen, Ke-Horng
This paper proposes a high efficiency and precise current balance circuit in parallel RGB Light Emitting Diodes (LED) channels for color filter-less panel display. The new technique not only enhances the current matching in each channel but also reduces the requirement of device numbers and external resistors. The error percentage of all channel LED currents can kept within 0.1% when the channel voltage has a voltage variation ((Delta) V(CH)) around 1.IV. Furthermore, the proposed load dependent minimum drain voltage can effectively reduce the voltage drop across the precise current balance circuit. As a result, the efficiency of the LED driver can be improved.