Apple is considering buying some of the flash memory chips destined for use in the iPhone from Chinese manfacturer Yangtze Memory Technologies, according to Nikkei Asian Review. The little-known chipmaker is set to begin producing NAND flash memory chips this year, but sources close to the discussions with Apple said it will likely be 2020 or later before Yangtze can produce enough parts to meet Apple’s standards. The sources said the chips…