Hynix Semiconductor and SanDisk have agreed to jointly make and sell NAND flash memory, and develop four-bit-per-cell flash memory.
Both companies will invest in increased manufacturing capacity at Hynix, the world's number two producer of DRAM (dynamic RAM) memory chips, based in South Korea.
The four-bit-per-cell flash technology, called x4, allows for more storage on a flash memory chip for the same manufacturing cost. Hynix had been collaborating with Flash Disk pioneer M-Systems on x4 technology. SanDisk, however, bought M-Systems for $1.5bn in November 2006.
Neither company detailed what happened to the collaboration on x4 after SanDisk bought M-Systems. But the new agreement resolves intellectual-property issues between them and puts aside "distractions”, said O.C. Kwon, senior vice president of Hynix.
On Tuesday, Hynix reached an agreement with Toshiba to share semiconductor patents, ending patent-infringement suits in the US and Japan.
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