Innovation Infosheet Downloaded September 23, 2021

High Density 3D Stacked RRAM Cache Designs

Track Code: 2014-VADI-66681

Categories: - Computer Technology - Electrical Engineering

Keywords: - Big Data - Circuits - Computer Hardware - Computer Technology - Digital Storage - Electrical Engineering

A memistor, or memory , is one of the basic elements of electronic circuits because it can't be replaced by either a resistor, , or . In 3D memory integration of , layers of crossbars are stacked upon one another on a substrate with each layer separated by a layer of insulator. Each crossbar layer has row and column bars with layers in-between. Inefficiencies exist in footprint and storage capacity as a result of this design.

Purdue University researchers have designed a memristor that stacks more crossbars for the same amount of space, allowing its density to be nearly doubled. This design sets the next generation in energy density and proves itself as an interesting design alternative because of its higher energy density and the dynamic insulator's thickness equivalent to three memristor layers. Since the number of crossbars is fewer for the new, extrapolated design, the power dissipation on the crossbars is expected to be reduced compared to conventional design. Field- programmable gate arrays (FPGAs) would greatly benefit from this design due to their need for large amounts of programmed data.

Advantages: -Reduced footprint and increased storage capacity

Potential Applications: -Computers -Electric Circuits -High density -Implantable devices -Field-programmable gate arrays (FPGAs)

Downloaded September 23, 2021 Page 1 / 2 People: - Vadivel Murugan, Selva Kumaran (Project leader)

Intellectual Property:

Application Date: September 25, 2017 Type: CON-Patent Country of Filing: United States Patent Number: 10,497,750 Issue Date: December 3, 2019

Application Date: May 22, 2015 Type: Utility Patent Country of Filing: United States Patent Number: 9,773,843 Issue Date: September 26, 2017

Application Date: May 22, 2014 Type: Provisional-Patent Country of Filing: United States Patent Number: (None) Issue Date: (None)

Contact OTC: Purdue Office of Technology Commercialization The Convergence Center 101 Foundry Drive, Suite 2500 West Lafayette, IN 47906

Phone: (765) 588-3475 Fax: (765) 463-3486 Email: [email protected]

Downloaded September 23, 2021 Page 2 / 2