US 2025/0053313 A1 · METHOD FOR CONTROLLING FLASH MEMORY MODULE AND ASSOCIATED FLASH MEMORY CONTROLLER AND MEMORY DEVICE

Abstract

The present invention provides a method for controlling a flash memory module. The flash memory module includes a plurality of dies, each die includes a plurality of blocks, each block includes a plurality of pages, and the method includes the steps of: selecting a super block, wherein the super block includes a plurality of first blocks respectively located in the plurality of dies; for each first block in the super block, determining whether the first block is a full block or a blank block; and if the first block is not the full block or the blank block, writing dummy data to the first block so that the first block becomes the full block; and erasing the plurality of first blocks in the super block, so that the plurality of first blocks become a plurality of blank blocks.

Claims15

Dependent claims

A method for controlling a flash memory module, wherein the flash memory module comprises a plurality of dies, each die comprises a plurality of blocks, each block comprises a plurality of pages, and the method comprises:

selecting a super block, wherein the super block comprises a plurality of first blocks respectively located in the plurality of dies;
for each first block in the super block, determining whether the first block is a full block or a blank block;
and if the first block is not the full block or the blank block, writing dummy data to the first block so that the first block becomes the full block;
and
erasing the plurality of first blocks in the super block, so that the plurality of first blocks become a plurality of blank blocks.

2 more elements

A flash memory controller, wherein the flash memory controller is configured to access a flash memory module, the flash memory module comprises a plurality of dies, each die comprises a plurality of blocks, each block comprises a plurality of pages, and the flash memory controller comprises:

a read-only memory, configured to store a program code;
a microprocessor, configured to execute the program code to access the flash memory module;
wherein the microprocessor is configured to perform the steps of:
selecting a super block, wherein the super block comprises a plurality of first blocks respectively located in the plurality of dies;
for each first block in the super block, determining whether the first block is a full block or a blank block;
and if the first block is not the full block or the blank block, writing dummy data to the first block so that the first block becomes the full block;
and
erasing the plurality of first blocks in the super block, so that the plurality of first blocks become a plurality of blank blocks.

5 more elements

A memory device, comprising:

a flash memory module, wherein the flash memory module comprises a plurality of dies, each die comprises a plurality of blocks, each block comprises a plurality of pages;
and
a flash memory controller, configured to access the flash memory module;
wherein the flash memory controller is configured to perform the steps of:
selecting a super block, wherein the super block comprises a plurality of first blocks respectively located in the plurality of dies;
for each first block in the super block, determining whether the first block is a full block or a blank block;
and if the first block is not the full block or the blank block, writing dummy data to the first block so that the first block becomes the full block;
and
erasing the plurality of first blocks in the super block, so that the plurality of first blocks become a plurality of blank blocks.

6 more elements

Dependencies are inferred from the claim text.

Method for controlling flash memory module and associated flash memory controller and memory device

Life of this patent

Method for controlling flash memory module and associated flash memory controller and memory device

Life of this patent

Abstract

Claims15