US 12,406,726 B2
Suppressing random telegraph noise in crossbar circuits
Mingyi Rao, Fremont, CA (US); Mingche Wu, San Jose, CA (US); and Ning Ge, Danville, CA (US)
Assigned to TetraMem Inc., San Jose, CA (US)
Filed by TetraMem Inc., Fremont, CA (US)
Filed on Jul. 28, 2023, as Appl. No. 18/361,282.
Prior Publication US 2025/0037765 A1, Jan. 30, 2025
Int. Cl. G11C 7/10 (2006.01); G11C 13/00 (2006.01)
CPC G11C 13/0069 (2013.01) [G11C 2213/79 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for programming a crossbar circuit, comprising:
performing a first programming process to program a cross-point device of the crossbar circuit to a target conductance value, wherein at least one programming voltage is applied to the cross-point device during the first programming process, wherein the cross-point device comprises a resistive random-access memory (RRAM) device;
determining, by a processing device, a first random telegraph noise (RTN) value associated with the RRAM device; and
in view of a determination that the first RTN value associated with the RRAM device is not within a predetermined range of acceptable RTN values, applying a first noise-reduction voltage to the cross-point device, wherein the at least one programming voltage is higher than the first noise-reduction voltage.