CONTINUOUS PROGRAMMING OF NON-VOLATILE MEMORY

• US 20120287734A1
• Filed: 06/28/2012
• Published: 11/15/2012
• Est. Priority Date: 10/06/2008
• Status: Active Grant

• Current Assignee: SanDisk Technologies LLC (Western Digital Corporation)
• Original Assignee: SanDisk 3D LLC (Western Digital Corporation)
• Inventors: Yan, Tianhong, Fasoli, Luca
• Granted Patent: US 8,780,651 B2
• Time in Patent Office: Days
• US Class Current: 365/189.16
• CPC Class Codes: G11C 13/0007 comprising metal oxide memory material, e.g. perovskites
• CPC Class Codes: G11C 13/0026 Bit-line or column circuits
• CPC Class Codes: G11C 13/0064 Verifying circuits or methods
• CPC Class Codes: G11C 13/0069 Writing or programming circuits or methods
• CPC Class Codes: G11C 2013/009 Write using potential difference applied between cell electrodes
• CPC Class Codes: G11C 2213/32 Material having simple binary metal oxide structure
• CPC Class Codes: G11C 2213/34 Material includes an oxide or a nitride
• CPC Class Codes: G11C 2213/71 Three dimensional array
• CPC Class Codes: G11C 2213/72 Array wherein the access device being a diode
• CPC Class Codes: G11C 7/1078 Data input circuits, e.g. write amplifiers, data input buffers, data input registers, data input level conversion circuits
• CPC Class Codes: G11C 7/12 Bit line control circuits, e.g. drivers, boosters, pull-up circuits, pull-down circuits, precharging circuits, equalising circuits, for bit lines

Abstract

A system connects a signal driver to a first control line that is connected to a first non-volatile storage element, charges the first control line while the signal driver is connected to the first control line, disconnects the signal driver from the first control line while the first control line remains charged from the signal driver, connects the signal driver to a second control line that is connected to a second non-volatile storage element, charges the second control line using the signal driver while the signal driver is connected to the second control line, and disconnects the signal driver from the second control line. The disconnecting of the signal driver from the first control line, the connecting the signal driver to the second control line and the charging of the second control line are performed without waiting for the first non-volatile storage element'"'"'s program operation to complete.

Claims

1. A non-volatile storage apparatus, comprising:

a first non-volatile storage element;

a second non-volatile storage element; and

a selection circuit in connected to the first non-volatile storage element and the second non-volatile storage element, the selection circuit selects the first non-volatile storage element and a program operation for the first non-volatile storage element starts and completes, the selection circuit unselects the first non-volatile storage element and selects the second non-volatile storage element after the program operation for the first non-volatile storage element starts and without waiting for completion of the program operation for the first non-volatile storage element, a program operation for the second non-volatile storage element starts without waiting for completion of the program operation for the first non-volatile storage element.