US 11,837,279 B2
Single cycle read processing in RAM cell
Daniel Keith Van Ostrand, Leander, TX (US); Gerald Dale Morrison, Redmond, WA (US); Richard Stuart Seger, Jr., Belton, TX (US); and Timothy W. Markison, Mesa, AZ (US)
Assigned to SigmaSense, LLC., Wilmington, DE (US)
Filed by SigmaSense, LLC., Wilmington, DE (US)
Filed on Apr. 6, 2021, as Appl. No. 17/223,267.
Application 17/223,267 is a continuation of application No. 16/568,079, filed on Sep. 11, 2019, granted, now 11,017,845.
Prior Publication US 2021/0225428 A1, Jul. 22, 2021
Int. Cl. G11C 11/4094 (2006.01); G11C 11/406 (2006.01); G11C 11/4096 (2006.01); G11C 11/4091 (2006.01)
CPC G11C 11/4094 (2013.01) [G11C 11/406 (2013.01); G11C 11/4091 (2013.01); G11C 11/4096 (2013.01)] 20 Claims
OG exemplary drawing
 
10. A cell processing circuit of a Dynamic Random Access (DRAM) memory device, the cell processing circuit comprises:
a read-write circuit operably coupled to a bit-line of a DRAM memory device, wherein the read-write circuit is configured to drive the bit-line at a first voltage for pre-charging a parasitic capacitance between a ground and the bit-line to a second voltage, wherein the second voltage is between a logic 1 voltage and a logic 0 voltage, wherein the bit-line is operably coupled to a plurality of DRAM cells including a first DRAM cell of the DRAM memory device;
a drive sense circuit operably coupled to the bit line, wherein the drive sense circuit is operable to sense a voltage change on the bit-line when the parasitic capacitance is coupled in parallel to a DRAM cell capacitor of the first DRAM cell; and
an input selection circuit operably coupled to the drive sense circuit and operably coupled to the read-write circuit, wherein the read-write circuit is configured to receive an output from the input selection circuit and generate a read output voltage based on the output from the input selection circuit, wherein the read-write circuit is further configured to apply the read output voltage to the bit-line to refresh a voltage stored by the first DRAM cell.