Historically, memory prices have been as volatile as the RAM they are used in but recently this has changed.  The demand for flash storage, volatile or not, has grown tremendously with the advent of SSDs, the ever increasing local flash storage provided on your phone and now even cars and other members of the IoT are devouring flash as quickly as it can be made.  This has lead to the new pricing trend we have been seeing, a slow increase in the price of flash memory.  Samsung is addressing this shortage, and looking to increase their revenue, by making a large investment in their existing infrastructure in South Korea.  All told these investments total $31.2 billion dollars and will enhance existing production lines as well as adding Extreme Ultra Violet machinery to a Fab which currently lacks that technology.  Drop by The Register for more detail.

"It says it will invest KRW 30 trillion ($26.1bn) by 2021 in its existing plant in Pyeongtaek, South Korea, to expand its semiconductor fabrication capacity. This fab, claimed to be the single largest in the industry, is now making 64-layer 4th generation V-NAND flash chips."

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