Advantest slid 440 yen, or 4.2%, to 8050 yen, Tokyo Electron descended 490 yen, or 5.6%, to 7890 yen, and Fujitsu dropped 30 yen, or 4.6%, to 626. Among the exporters, consumer products group Sony fell 80 yen, or 2%, to 3920 yen, while rival Matsushita Electric Industrial dropped 42 yen, or 2.8%, to 1465 yen.