AMD-Fujitsu venture plans 'mega' Japanese chip plant

Spansion, the joint venture memory-chip maker formed by Advanced Micro Devices and Fujitsu, plans a major expansion of its chip-making capacity in Japan as part of its drive to overtake Intel and Samsung Electronics in the competitive flash memory market.

The company will convert its plant in Aizu-Wakamatsu, Japan, into a mega-site for advanced flash memory chip production as part of a strategy that was announced at an AMD analyst briefing in the US.

Spansion was banking on increasing demand for higher-capacity flash memory chips from the cell phone, consumer electronics and automotive electronics markets to make its NOR-type flash memory chips more attractive, president of Spansion, Bertrand Cambou, said.

AMD holds a 60 per cent stake in the company and Fujitsu holds the remaining share.

NOR-type flash, which is also produced by Intel, usually trails NAND-type flash in capacity terms but Cambou hopes a new technology that enables four bits of data to be stored in each memory cell will provide the technology with an edge. The technology effectively gives each chip four times the capacity of those made by NAND-type flash chip makers such as Samsung and Toshiba.

That extra capacity was expected to be more important in the coming years, he said.

Spansion estimates that the average cell phone currently contains about 180Mbits of memory but that by the second-half of 2006 the average handset will contain around 560Mbits.

High-end handsets would contain 5Gbits of memory at the same time, Cambou said.

To prepare for the anticipated increase in demand for its chips, Spansion was planning to divert money that had been earmarked for expanding its processing capacity of 200mm wafers to the purchase of more advanced equipment that could handle 300mm wafers, he said.

The larger wafers are regarded as a more advanced production technology as each can produce several times more chips for a small increase in processing cost.

The new equipment will be housed in a factory, called SP1, that will be built alongside an existing 200-millimeter fab, called JV3, in Aizu-Wakamatsu. The SP1 factory will be the first factory to be jointly built by the two partners since they created Spansion in 2003.

"Essentially, the plan is to install SP1 and then convert JV3 to make that a mega-site [for] 300mm [production]," Cambou said. "This is 65-nanometer and capable of going to 45-, 30- and perhaps 20-nanometer after that."

"This is a huge investment here," he said without specifying the amount involved.

The first stage of the mega-fab, the SP1 plant, would be ready for production in 2007 according to current plans although that date could shift either earlier or later depending on the state of the chip industry and demand, Cambou said.

On Tuesday, South Korea's Hynix Semiconductor and Switzerland-based STMicroelectronics signed a joint-venture agreement to construct two memory chip manufacturing lines in China.

The two companies said they would invest about $US2 billion in the factory, which would turn out flash and dynamic RAM (DRAM) memory chips.

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Martyn Williams

IDG News Service
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