**There have been over** 150 aftershocks following the catastrophic earthquake and tsunami a week ago and that means Japanese fabs have little chance of re-starting until these cease, aside from other problems the country faces.

According to IHS iSuppli, earthquakes over magnitude five cause fabrication plants to automatically shut down.

The research firm says there are 130 fab lines in 53 locations in Japan. And OEMs appear to be engaging in panic buying of both chips and components, with distributors reporting a surge in orders.

But IHS iSuppli said that given the disruptions are bad enough, a buildup in inventories could help mitigate reduced supplies. It’s not just semiconductor fabs that are affected. Japan is the world’s leading producer of silicon and makes many chemicals used to produce chips.

IHS iSuppli said that some of the chemicals are dangerous and warns continuing power outages could cause explosions or the release of toxic chemicals. Factories won’t carry on producing material until there’s a stable power supply. The following table, courtesy of IHS iSuppli, demonstrates the extent of the problems in Japan.

Company | Product Technology | Location |
---|---|---|

Elpida Memory Incorporated | Memory | Hiroshima |

Freescale | Logic | Sendai |

Fujitsu | Memory, Analog, Discrete | Aizu Wakamatsu |

Fujitsu | Logic | Akiruno |

Fujitsu | Memory, Microcomponent | Iwate |

Fujitsu | Microcomponent, Logic | Mie |

Fujitsu | Microcomponent, Logic | Mie |

Matsushita / Panasonic | Microcomponent, Logic, Analog, Discrete | Arai |

Matsushita / Panasonic | Discrete | Bizen |

Matsushita / Panasonic | Discrete | Hioki |

Matsushita / Panasonic | Discrete | Kyoto |

Matsushita / Panasonic | Analog, Discrete | Nagaokakyoushi |

Matsushita / Panasonic | Microcomponent, Logic | Tonami |

Matsushita / Panasonic | Logic, Analog | Uozu |

Matsushita / Panasonic | Discrete | Utsunomiya |

Micron Technologies | Optical | Nishiwaki |

Mitsubishi | Analog | Kumamoto |

Mitsumi | Analog | Kita-Nihon |

ON Semiconductor | Logic | Aizu |

ON Semiconductor | Logic, Discrete | Gifu |

ON Semiconductor | Logic, Discrete | Gunma |

ON Semiconductor | Logic, Analog | Ojyia |

Renesas Electronics | Logic | Goshogawara, Aomori |

Renesas Electronics | Memory, Microcomponent, Logic | Hitachinaka, Ibaragi |

Renesas Electronics | Logic, Analog, Discrete | Kansai |

Renesas Electronics | Microcomponents | Kita-Nihon |

Renesas Electronics | Microcomponents | Kochi |

Renesas Electronics | Microcomponent, Logic, Analog, Discrete | Koufu |

Renesas Electronics | Memory, Microcomponent, Logic, Analog | Kyuhu |

Renesas Electronics | Memory, Microcomponent, Logic | Saijo |

Renesas Electronics | Analog, Discrete | Takasaki |

Renesas Electronics | Logic | Tsuruoka |

Rohm | Memory, Analog, Discrete | Chikugo |

Rohm | Logic | Hamamatsu |

Rohm | Memory, Logic, Discrete | Kyoto |

Rohm | Logic, Discrete | Miyagi |

Rohm | Discrete | Miyazaki |

Rohm | Logic | Tsukuba |

Sieko-Epson | Logic, Optical | Yasu |

Sony Semiconductor | Logic, Analog | Kyushu Kagoshima |

Sony Semiconductor | Logic | Kyushu Kumamoto |

Sony Semiconductor | Memory, Microcomponent, Logic | Kyushu Nagasaki |

Sony Semiconductor | Logic | Shiraishi |

Texas Instruments | Analog | Hiji |

Texas Instruments | Analog | Inashiki |

Toshiba | Discrete | Hyogo (Himeji) |

Toshiba | Discrete | Ishikawa (Nomi) |

Toshiba | Discrete | Iwate |

Toshiba | Memory, Analog | Mie (Yokkaichi) |

Toshiba | Logic | Nagasaki |

Toshiba | Logic | Oita |

Phenitec | Foundry | Ibara, Japan |

UMCJ | Foundry | Tateyama, Japan |