Yasushi Gohou’s scientific contributions

... In the field of emerging memories, the Resistive Random-Access-Memory (ReRAM) [6] constitutes an alternative for the development of high-density and ultra-low-power applications [7][8]. One of the most promising properties of the ReRAM devices is the capability of exhibiting multiple resistance states [9], enabling them to operate in a Multi-Level-Cell (MLC) regime [10], which is a property required for the development of in-memory computing systems [11][12][13]. Transition Metal Oxide (TMO) based resistive memories (OxRAMs) are considered one of the most viable solutions to implement artificial synapses for neuromorphic computing systems [14]. Typically, during a pulse set operation, the conductance of the device varies based on the pulse height, width, and number of pulses. ...

Reference:

Characterization of Switching Properties in ReRAM Devices by the Capacitance of the MIM Structure

... Many researchers have focused on exploiting the capabilities of emerging NVM (non-volatile memory) devices for analog computation in order to realize latency and energy benefits of 1000× 1 with respect to conventional graphics processing unit (GPU) and central processing unit (CPU) based computing for implementing largescale networks. [2][3][4] The key limitations of such methods are (i) the need for a reliable multi-state capability of the device in the optimal sensing range, 5 (ii) the requirement of selector devices to reduce the impact of sneak paths, and (iii) the need for linearity in multi-level cell (MLC) states along the sensing range. However, selector devices lead to increased on-chip area utilization and control signal routing complexities. ...

Reference:

Analysis of VMM computation strategies to implement BNN applications on RRAM arrays

... Tsing Hua University reported a fully integrated analog ReRAM-based chip with fully parallel multiplication accumulation (MAC) computing capabilities [ 192 ]. Panasonic Corporation reported a neural network processor using analog ReRAM [ 193 ]. International Business Machines (IBM) Corporation demonstrated a HERMES core based on PCRAM [ 194 ]. ...

Reference:

Recent Progress in Neuromorphic Computing from Memristive Devices to Neuromorphic Chips