Patent · US Active

Techniques for current-sensing circuit design for compute-in-memory

US10877752B2 · kind B2 · utility

2Cited by

1References

18Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Gregory K. Chen · Ann Arbor, US
Raghavan Kumar · Hillsboro, US
Huseyin Ekin Sumbul · Portland, US
Phil Knag · Portland, US
Ram Krishnamurthy · Portland, US
Sasikanth Manipatruni · Ithaca, US
Amrita Mathuriya · Portland, US
Abhishek A. Sharma · Hillsboro, US
Ian A. Young · Portland, US

Key dates

Filing date	Sep 28, 2018
Grant date	Dec 29, 2020
Priority date	—
Expiry date	Nov 18, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06F2207/4814
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A compute-in-memory (CIM) circuit that enables a multiply-accumulate (MAC) operation based on a current-sensing readout technique. An operational amplifier coupled with a bitline of a column of bitcells included in a memory array of the CIM circuit to cause the bitcells to act like ideal current sources for use in determining an analog voltage value outputted from the operational amplifier for given states stored in the bitcells and for given input activations for the bitcells. The analog voltage value sensed by processing circuitry of the CIM circuit and converted to a digital value to compute a multiply-accumulate (MAC) value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.