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Based on the new finding on switching behavior, for the first time a new memory operation principle is proposed to control the switching and to achieve improved performance of oxide-based RRAM including device-to-device and cycle-to-cycle uniformity, RESET current, and window of RHRS/RLRS ratio. Furthermore, a numerical simulation method is developed to evaluate the validity of the new operation principle...
A new current sweep measurement method is introduced to investigate the details of the set process. The electrode-dependent current compliance failure phenomenon is investigated in oxide-based resistive switching memory. The results indicate that the amount of conductive filaments formed in the oxide layer is the critical factor that influences the set behavior (sudden or slowly) and causes the compliance...
The Fermi-level pinning (FLP) at the metal/high-k interface and its dependence on the electron state density of the metal gate are investigated. It is found that the FLP is largely determined by the distortion of the vacuum level of the metal which is quantitatively ruled by the electron state density of the metal. The physical origin of the vacuum level distortion of the metal is attributed to an...
This paper presents a computer vision algorithm for visually detecting the contact between an end-effector and a target surface under an optical microscope. Without using additional sensors (e.g., proximity or force/touch sensors), this algorithm provides robustness and a sub-micrometer detection resolution. Fundamentally, after the establishment of a contact in the world frame, further vertical motion...
Autofocusing is a fundamental procedure towards automated microscopic evaluation of blood smear and pap smear samples for clinical diagnosis. This paper presents comparison results of 16 focus algorithms based on a total of 8000 bright-field images from 10 blood smear and pap smear samples. A ranking methodology adapted from our previously proposed ranking system is used for thoroughly evaluating...
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