The current memory chip processing technology has entered the nanometer level, the most common hard disk and flash chip processing technology has been able to reach 20 nm or less, and even some high-end memory chip processing technology has reached 10 nm or less.
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Specifically, the current mainstream memory chip processes are as follows:
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1. SLC flash memory chip: The latest SLC flash memory chip processing process has reached 15 nm.
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2. MLC (multi-layer unit) flash memory chip: MLC flash memory chip processing process is generally between 19 nm and 14 nm.
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3. TLC (three-layer unit) flash memory chip: TLC flash memory chip processing process is generally between 15 nm and 10 nm.
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4. QLC (four-layer unit) flash memory chip: QLC flash memory chip processing process is mostly between 15 nm and 9 nm.
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5. Vertical magnetic recording hard disk: The latest vertical magnetic recording hard disk processing technology has reached 14 nm.
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It should be noted that the processing technology of memory chips is constantly developing towards the finer nano level to improve the storage capacity and read and write speed. Therefore, the future memory chip processing technology is likely to be further improved.
Currently on the market is generally more than 28 nanometers