Samsung Electronics said it has developed <A HREF="http://news.zdnet.com/2100-1035_22-6146000.html?tag=nl.r23660">a new mobile memory chip</A> that is thinner and uses less power than previous generations of chips, a development that could affect a wide range of portable consumer electronic devices. Samsung claims it has developed the first 1-gigabit DRAM (dynamic random access memory) chip for mobile products, using 80-nanometer process technology. The new chip is at least 20 percent thinner than existing chipsets that use up to two 512-megabit chips, and it uses about 30 percent less power, the company said in a press release.