Nanya Technology saw revenues decrease 11.6% sequentially to NT$3.92 billion (US$137 million) in May 2011 while Inotera Memories' grew 14.7% on month to NT$3.67 billion.
Nanya attributed the sequential drop to lower chip prices. The company also warned that DRAM contract prices for June are likely to fall by up to 5%.
Nanya said it has been reluctant to sell chips since the latter half of May, due to falling prices. The company has therefore lengthened its inventory from 13 days to 17-18 days.
Inotera's May revenues were buoyed by the company's smooth shift to 40nm-class process technology, according to the company, adding that it is set to start manufacturing mobile DRAM and server memory chips using 3Xnm in the second half of 2011.
On an annual basis, Nanya and Inotera experienced revenue declines of 25.6% and 6.2%, respectively, compared to May 2010.
Nanya accumulated NT$19.09 billion in revenues from January through May, down 22% from the same period of 2010. Inotera's cumulative 2011 revenues through May totaled NT$16.45 billion.
Nanya and Inotera are Taiwan's major DRAM chipmakers, producing chips using Micron Technology's process designs.
Article translated by Jessie Shen
