Publication

Characterization and 3D TCAD simulation of NOR-type flash non-volatile memories with emphasis on corner effects

2011
Journal Articles

Abstract

The impact of 3D device architecture in aggressively scaled embedded non-volatile memories has been investigated by means of experiments and 3D TCAD simulations. A complete 3D calibration methodology covering DC and transient operating regimes has been introduced and validated against measurements for different technological options. This approach has been employed to determine the key features for device optimization. In particular, shallow trench isolation corners around the active area have been identified as critical regions of the memory cell for program and erase operations, as well as for gate coupling ratio optimization. © 2011 Elsevier Ltd. All rights reserved.

Official source

https://infoscience.epfl.ch/entities/publication/9a967944-0b46-48fd-bb08-51fa98cf9a17

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2011
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/9a967944-0b46-48fd-bb08-51fa98cf9a17

About this result

Related concepts (28)

Flash memory

Flash memory is an electronic non-volatile computer memory storage medium that can be electrically erased and reprogrammed. The two main types of flash memory, NOR flash and NAND flash, are named for the NOR and NAND logic gates. Both use the same cell design, consisting of floating gate MOSFETs. They differ at the circuit level depending on whether the state of the bit line or word lines is pulled high or low: in NAND flash, the relationship between the bit line and the word lines resembles a NAND gate; in NOR flash, it resembles a NOR gate.

Memory cell (computing)

The memory cell is the fundamental building block of computer memory. The memory cell is an electronic circuit that stores one bit of binary information and it must be set to store a logic 1 (high voltage level) and reset to store a logic 0 (low voltage level). Its value is maintained/stored until it is changed by the set/reset process. The value in the memory cell can be accessed by reading it. Over the history of computing, different memory cell architectures have been used, including core memory and bubble memory.

Computer memory

Computer memory stores information, such as data and programs for immediate use in the computer. The term memory is often synonymous with the term primary storage or main memory. An archaic synonym for memory is store. Computer memory operates at a high speed compared to storage which is slower but less expensive and higher in capacity. Besides storing opened programs, computer memory serves as disk cache and write buffer to improve both reading and writing performance.

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