Samsung Electronics has developed and is sampling monolithic 4Gbit, LPDDR2 (low power DDR2) DRAM using 30nm technology for mobile applications such as smartphones and tablet PCs. The DRAM can transfer up to 1066Mbit/s, almost matching the performance of memory solutions for PC applications. It is greater than the performance of the mobile DRAM-MDDR, which operates between 333Mbit/s and 400Mbit/s. To meet consumer needs for mobile application features, advanced memory chips offering both high performance and high density are essential. The company will soon begin sampling 8Gbit LPDDR2 DRAM by stacking two 4Gbit chips in a single package. An 8Gbit solution uses four 2Gbit chips. With the Green 4Gbit LPDDR2, this DRAM offers package height reduction and will save power, according to the company. This development will enable thin, lightweight mobile devices to be produced with a long battery life.