<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>"An IBM researcher says Moore's Law is running out of gas.
<DIV>IBM Fellow Carl Anderson, who oversees physical design and tools in its server division, predicted the end of continued exponential scaling down of the size and cost of semiconductors...
<DIV>"There was exponential growth in the railroad industry in the 1800s; there was exponential growth in the automobile industry in the 1930s and 1940s; and there was exponential growth in the performance of aircraft until [test pilots reached] the speed of sound. But eventually exponential growth always comes to an end," said Anderson.
<DIV>A generation or two of continued exponential growth will likely continue only for leading-edge chips such as <A href="http://www.eetimes.com/showArticle.jhtml;jsessionid=FDJGJ5E0XV4H0QSNDLRSKHSCJUNN2JVN?articleID=206105179">multicore microprocessors,</A> but more designers are finding that everyday applications do not require the latest physical designs, Anderson said.
<DIV>Consequently, <A href="http://www.eetimes.com/showArticle.jhtml;jsessionid=FDJGJ5E0XV4H0QSNDLRSKHSCJUNN2JVN?articleID=208402624">Moore's Law</A>--halving of the dimensions and doubling of speed of chips every 18 months--will run out of steam very soon. Only a few high-end chip makers today can even afford the exorbitant cost of next-generation research and design, much less the fabs to build them.
<DIV>Anderson cited three next-generation technologies that were still on the fast track for exponential growth: optical interconnects, 3-D chips and accelerator-based processing. He predicted that rack-to-rack optical interconnects will become commonplace, with chip-to-chip optical connections on the same board coming soon. But Anderson said on-chip optical signaling remains years away. He also predicted that stacked DRAM dies would be the first to go 3-D.</DIV></td></tr></table>