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(Nikkei BP Group)



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New Year Special Features '99
















  • Toshiba to Make 128Mb DRAM with Smallest Chip Size
  • January 13, 1999 (TOKYO) — Toshiba Corp. said that it will produce 128Mb dynamic random access memory (DRAM) microchips with a die (chip) size of about 60 sq. mm, the industry’s smallest.
    The chip size is equivalent to or even smaller than that of 64Mb DRAM microchips.

    Toshiba said it adopted a 0.18-micron design rule as well as an improved memory cell structure to realize that chip size. The company has not provided details of the memory-cell structure of the microchips, but it confirmed that the structure had been verified using memory cells with a 0.25-micron design rule.

    Toshiba is studying the concept of using the same technology for 64Mb DRAM microchips to shrink the chip size to about 30 sq. mm to 35 sq. mm. However, it has not been decided whether the technology will be adopted for these microchips, company officials said.

    Related stories:
    ¥ Toshiba, Fujitsu Cooperate in 1Gb DRAM Development
    ¥ Hitachi to Mass Produce 40 mm2 64Mb DRAM in ’99

    (Nikkei Microdevices)



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