摘要:
This disclosure concerns memory cell sensing. One or more methods include determining a data state of a first memory cell coupled to a first data line, determining a data state of a third memory cell coupled to a third data line, transferring determined data of at least one of the first and the third memory cells to a data line control unit corresponding to a second data line to which a second memory cell is coupled, the second data line being adjacent to the first data line and the third data line, and determining a data state of the second memory cell based, at least partially, on the transferred determined data.
摘要:
This disclosure concerns memory cell sensing. One or more methods include determining a data state of a first memory cell coupled to a first data line, determining a data state of a third memory cell coupled to a third data line, transferring determined data of at least one of the first and the third memory cells to a data line control unit corresponding to a second data line to which a second memory cell is coupled, the second data line being adjacent to the first data line and the third data line, and determining a data state of the second memory cell based, at least partially, on the transferred determined data.
摘要:
An apparatus and/or system is described including a memory device or a controller to perform programming and verification operations including application of a shared voltage level to verify two program voltage levels of a multi-level cell device. For example, in embodiments, the control circuitry performs a program operation to program a memory cell and performs a verification operation by applying a single or shared verify voltage level to verify that the memory cell is programmed to a corresponding program voltage level. In embodiments, the program voltage level is one of two consecutive program voltage levels of a plurality of program voltage levels to be verified by application of the shared verify voltage. Other embodiments are disclosed and claimed.
摘要:
Memory devices, methods for programming sense flags, methods for sensing flags, and memory systems are disclosed. In one such memory device, the odd bit lines of a flag memory cell array are connected with a short circuit to a dynamic data cache. The even bit lines of the flag memory cell array are disconnected from the dynamic data cache. When an even page of a main memory cell array is read, the odd flag memory cells, comprising flag data, are read at the same time so that it can be determined whether the odd page of the main memory cell array has been programmed. If the flag data indicates that the odd page has not been programmed, threshold voltage windows can be adjusted to determine the states of the sensed even memory cell page.
摘要:
Memory devices, methods for programming sense flags, methods for sensing flags, and memory systems are disclosed. In one such memory device, the odd bit lines of a flag memory cell array are connected with a short circuit to a dynamic data cache. The even bit lines of the flag memory cell array are disconnected from the dynamic data cache. When an even page of a main memory cell array is read, the odd flag memory cells, comprising flag data, are read at the same time so that it can be determined whether the odd page of the main memory cell array has been programmed. If the flag data indicates that the odd page has not been programmed, threshold voltage windows can be adjusted to determine the states of the sensed even memory cell page.
摘要:
An apparatus may include a processor circuit a processor circuit to retrieve data from a non-volatile memory, and a multistrobe read module operable on the processor circuit to set a read operation to read a memory cell over a multiplicity of sense operations, where each sense operation is performed under a different sense condition. The multistrobe read module may be further operable to schedule a new sense operation to succeed a prior sense operation of the multiplicity of sense operations without recharge of the wordline when a value of one or more read condition is within a preset range. Other embodiments are disclosed and claimed.
摘要:
An apparatus may include a processor circuit a processor circuit to retrieve data from a non-volatile memory, and a multistrobe read module operable on the processor circuit to set a read operation to read a memory cell over a multiplicity of sense operations, where each sense operation is performed under a different sense condition. The multistrobe read module may be further operable to schedule a new sense operation to succeed a prior sense operation of the multiplicity of sense operations without recharge of the wordline when a value of one or more read condition is within a preset range. Other embodiments are disclosed and claimed.
摘要:
Embodiments of methods and systems disclosed herein provide a NAND cell programming technique that results in a substantially reduced Tprog to complete a programming operation. In particular, embodiments of the subject matter disclosed herein utilize two Vpgm programming pulses during each programming iteration, or loop. One of the two programming pulses corresponds to a conventional programming Vpgm pulse and the second pulse comprises a programming pulse that having a greater Vpgm that is greater than the conventional programming Vpgm so that the slow cells are programmed to PV in fewer pulses (iterations), thereby effectively simultaneously programming and verifying cells having different programming speeds.
摘要:
Apparatus, methods, and systems are disclosed, including those to improve program voltage distribution width using automatic selective slow program convergence (ASSPC). One such method may include determining whether a threshold voltage (Vt) associated with a memory cell has reached a particular pre-program verify voltage. In response to the determination, a voltage applied to a bit-line coupled to the memory cell may be automatically incremented at least twice as the program voltage is increased, until the cell is properly programmed. Additional embodiments are also described.
摘要:
The threshold voltage range of a multilevel memory cell may be increased without using a negative voltage pump. In one embodiment, an added positive voltage may be applied to the source of the selected cell. A boost voltage may be applied to the output of a sense amplifier. Non-ideal characteristics of a buffer that supplies the voltage to the selected cell may be compensated for in some embodiments.