MEMORY DEVICE and operation method thereof

Abstract

The invention discloses a circuit of a memory device, and a method comprises the steps: writing a plurality of data words, each of which has a plurality of data bits, into respective bit cells of a memory device; in response to determining that not all the data bits of the plurality of data words are correctly written into the respective bit cells of the memory device, grouping the plurality of data words as a plurality of data word sets; and simultaneously rewriting a subset of data bits that were not correctly written into the respective bit cells of the memory device, wherein the subset ofthe data bits are contained in a respective one of the plurality of data word sets.

Description

technical field [0001] Embodiments of the present invention generally relate to the field of semiconductor technologies, and more particularly, to memory devices and methods of operating the same. Background technique [0002] Memory devices are commonly used in many types of electronic devices such as computers, cell phones, tablet computers, data loggers and navigation devices, to name a few. Typically, in such memory devices, write operations are used to store information as bits of data. In some cases, there may be multiple data words, each data word including multiple data bits, where the data bits are configured to be written to corresponding memory bit cells of the memory device. Occasionally, the corresponding write operation may fail. For example, one or more data bits in multiple data words may not be correctly written to configured memory bit cells. Such data bits are often referred to as fault data bits. [0003] To remedy such faulty data bits, techniques us...

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Problems solved by technology

For example, faulty data bits contained in the first word are rewritten into correspondingly configured memory bit cells, faulty data bits contained in the second word are rewritten into correspondingly configured memory bit cells, and so on, It's a waste of time and power

Therefore, existing memory devices and methods of storing data bits are not entirely satisfactory

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