Samsung Electronics is touting a NAND chip that it says will drive high-density memory beyond memory cards. Samsung also said it won't work with Apple on developing A7 application processors, another sign that Apple has decided to move on from Samsung in its chip-tech process, Kim Yoo-chul writes. "Apple has been paying billions of dollars to Samsung to use the latter's application processors in its i-devices. ... Apple's orders were a big help in lifting Samsung's semiconductor business," Yoo-chul writes.

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