Intel Corporation

Camila Jaramillo

Aliasgar S Madraswala

Yogesh B Wakchaure

Trupti Bemalkhedkar

Ali Khakifirooz

Krishna Kumar Parat

Richard M Fastow

Uday Chandrasekhar

Purval Shyam Sule

Xin Sun

Netra Mahuli

John Egler

Renjie Chen

An apparatus comprises a plurality of memory cells; a plurality of sense circuits, a sense circuit comprising a sense node selectively coupled to a bitline coupled to a first cell of the plurality of memory cells; and a controller to transpose a value indicative of a voltage of the first cell to the sense node; isolate the sense node from the bitline; and calibrate a parameter for the sense circuit based on outputs of the sense circuit for each of a plurality of different applied values of the parameter.

Automatic read calibration operations

A disclosed example to use an erase-suspend feature on a memory device includes a host interface to receive a first erase command to perform an erase operation; and a control circuit to: based on the erase-suspend feature being enabled at the memory device, suspend the erase operation based on determining that a length of time equal to an erase segment duration value has elapsed, the length of time elapsed being relative to a start of an erase segment, and the erase segment duration value specified in a configuration parameter for the erase-suspend feature; perform a second memory operation when the erase operation is suspended; and after the second memory operation is complete, resume the erase operation based on receiving a second erase command from the memory host controller.

Methods and apparatus to perform erase-suspend operations in memory devices

A controller for a NAND memory array is presented. In embodiments, the controller may include circuitry to provide bias voltages to a NAND memory array that includes two or more decks of memory cells, and an output interface coupled to the circuitry and to wordlines (WLs) of the memory array. In embodiments, the circuitry, in a deck erase operation may: apply a first set of bias voltages via the output interface to active WLs of at least a first deck of the two or more decks of memory cells to be erased; and apply a second set of bias voltages via the output interface to active WLs of at least a second deck of the two or more decks of memory cells not to be erased, wherein the first set of bias voltages is lower than the second set of bias voltages.

Block by deck operations for NAND memory

A disclosed example to use an erase-suspend feature with a memory device includes sending, by a memory host controller, an erase-suspend enable setting and an erase segment duration value to the memory device. The erase-suspend enable setting is to cause the memory device to perform an erase operation as a plurality of erase segments and to suspend the erase operation between the erase segments. The erase segment duration value is to specify a length of time for the erase segments. The memory host controller initiates an erase operation to be performed at the memory device. When the erase operation is suspended, the memory host controller initiates a second memory operation to be performed at the memory device. After the memory host controller determines that the second memory operation is complete, the memory host controller initiates resumption of the erase operation.

Growing community of inventors

San Jose, CA, United States of America

Camila Jaramillo