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Industrial Research And Consultancy Centre
Patent
Method for Handling Logical Operation in Memory Device
Problem Statement

The von Neumann bottleneck in conventional computing creates inefficiencies in handling data-intensive tasks, particularly in AI applications, due to high communication overhead between the processing unit and memory unit. Existing RRAM solutions require multiple cycles and multiple devices, leading to inefficiencies in energy and speed.

Abstract

The patent describes a method for fabricating a three-terminal resistive random-access memory (3T-RRAM) device. This device aims to improve in-memory computing by integrating logical operations within the memory, addressing the von Neumann bottleneck, which limits conventional computing performance due to data transfer inefficiencies between the processor and memory.

Uniqueness of the Solution
  • Three contacts that serve as both input and output terminals. 
  • Fabrication involves multiple layers, including silicon, silicon dioxide, titanium, platinum, zirconium dioxide, and PCMO. 
  • Single write cycle for logical operations with voltage input and resistance output.
  • Reduces communication overhead between processor and memory. 
  • Increases energy efficiency and reduces latency in data-intensive tasks. 
  • Simplifies device architecture by reducing the number of required components and operations.
Prototype Details
  • A multi-layered structure with specific materials (Si, SiO2, Ti, Pt, ZrO2, PCMO, W). 
  • Uses buffered hydrogen fluoride (BHF) for etching to create the necessary patterns. 
  • The device demonstrates a 3T-RRAM configuration that integrates both storage and computational capabilities.
Current Status of Technology

The functionality of handling logic operation in a 3-terminal memory device has been demonstrated. The logic operation requires a single input and a single compute cycle. The optimization of the material composition of the memory device for low-power in-memory computing is ongoing.

Technology readiness level

4

Societal Impact
  • Enhances the performance and efficiency of AI and data-intensive applications, potentially accelerating advancements in these fields. 
  • Reduces energy consumption in data centers, contributing to greener technology solutions. 
  • Improves the capabilities of consumer electronics and IoT devices, leading to better user experiences and more advanced functionalities.
Relevant Industries, Domains and Applications
  • Artificial Intelligence (AI) 
  • Data centers and cloud computing 
  • High-performance computing (HPC) 
  • Consumer electronics 
  • IoT (Internet of Things) devices
Applications or Domain
  • AI and machine learning tasks 
  • Data storage and processing in data centers 
  • Real-time data analytics 
  • Embedded systems in consumer electronics 
  • IoT devices requiring efficient data processing and storage

Geography of IP

Type of IP

Application Number

202021018935

Filing Date
Grant Number

496652

Grant Date
Assignee(s)
Indian Institute of Technology Bombay
**This IP is owned by IIT Bombay**