Micron, the United States, said it will mass -produce the world’s first 232 -stage NAND flash later this year. The goal is to launch the largest single NAND before Samsung Electronics, which is the No. 1 memory market.
Micron held ‘Investor Day 2022’ on the 12th (local time) and released memory technology and roadmap.
The 232 -stage NANNANNN, released by Micron, can secure a 1TB (128GB) capacity with a 3D TLC type. The chip is based on Micron’s CMOS Under Array design and is made into a ‘double stack’ process that builds two NAND arrays. CUA design is a technology that can reduce the cost of production by significantly reducing the size of memory.
If Micron mass -produces 232 -stage NAND as planned, it will record the world’s largest NAND by singular. This is ahead of Samsung Electronics, the No. 1 NAND industry. Micron said in November 2020 that it succeeded in developing the world’s first 176 -stage NAND.
The latest NAND technology released by Samsung Electronics is 128 stages, and this year, the 176th V7 NAND is expected. However, there is a big difference in the laminated technology of both companies. Micron uses ‘double stack’ process technology, while Samsung Electronics uses ‘single stack’ technology.
NAND laminated technology is divided into a double stack that combines the cell at the bottom and a single stack made of one bundle (one hole) and two bundles. Single stacks are considered to be superior to double stacks because the less you tie the cells, the less data loss and the faster the transmission speed.
As if they were conscious of Micron, Samsung Electronics said in a newsroom article in June last year, “Samsung has already secured more than 200 -speed 8 -generation V -NAND motion chips.” “We are preparing to show you.”
At the time, Song Jae -hyuk, vice president of Samsung Electronics Flash Development Division (Samsung Electronics), said, “It is the only company with a ‘single stack etching’ technology that can accumulate more than 100 stages at a time and drill more than 1 billion holes.” “We are securing technical leadership that can overcome the limits and go to high terms.”
Meanwhile, SK Hynix announced that it had succeeded in developing 176 -stage NAND for the second time after Micron in December 2020. SK Hynix also plans to mass -produce 176 -level NAND within the year.
Since 2002, Samsung Electronics has maintained its No. 1 market share in the NAND memory market. According to market research firm Trend Force, Samsung Electronics ranked first with a 33.1% share in the global NAND market as of the fourth quarter of last year. It was followed by one after another, Kioxia (19.2%), Western Digital (14.2%), SK Hynix (14.1%) and Micron (10.2%).