Toshiba and SanDisk introduce 90nm 4Gbit and 8Gbit NAND flash
Toshiba America Electronic Components, Inc. (TAEC) and the parental Toshiba introduced 4Gbit NAND flash chip (TC58NVG2D4BFT00) made using the MLC technology alongside the 8Gbit (2x4, stacked) chip, TH58NVG3D4BFT00, in TSOP package.
The new 0.09µm 4Gbit chips will be sampling in April for $113/unit, while the volume production is to be launched in Q3 2004 with a rate of 300,000 per month.
It seems the next step will be to release 16Gbit NAND flash (4x4). At least Toshiba promises to launch the volume production in Q3 this year.
Toshiba developed 4Gbit NAND flash chips together with SanDisk, according to the agreement of 1999. Besides, the chips are produced at Flash Vision Japan fab, a joint venture of Toshiba and SanDisk.
| |
4Gbit, TC58NVG2D4BFT00 |
8Gbit, TH58NVG3D4BFT00 |
| Sampling |
April 2004 |
May 2004 |
| Cost |
$113 |
$226 |
| Volume production |
Q3 2004 |
| Voltage |
Vcc 2.7~3.6V |
| Page size |
2048+64 bytes |
| Write |
600 µs/page |
| Erase |
2 ms/block |
| Access |
50 ms initial (max.), 50ms consequent (min.) |
| Package |
48-pin TSOP (12x20x1.2) |
As the aforementioned 4Gbit chips are the product of joint venture, I must mention that SanDisk also introduced both 4Gbit, and 8Gbit chips identical to Toshiba´s. The company is also launching volume production in Q3 2004, yet it doesn´t plan to make "pure" NAND flash, but is going to use all chips in flash cards also to be shipped in Q3.
And, Samsung, the market leader, outran its rivals, having introduced 70nm 4Gbit NAND flash chips late in September 2003.
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