WDC/Sandisk Corporation Message Board

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Technology Stocks : WDC/Sandisk Corporation

WDC 157.75

+0.4%

Nov 14 9:30 AM EST

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To: scott who wrote (1720)	11/20/1997 11:54:00 AM
From: Mike Winn	Read Replies (1) of 60323

It looks like Hitachi is pre-announcing a higher density flash chip (256 Mbit) from Sandisk than the 80 Mbit flash chip that was already announced: sandisk.com I don't think there is any company besides Sandisk that has the technology to make better than 64 Mbit flash chip. Intel just got the 64Mbit flash chip so far but it's still not in production. I notice that Hitachi said the 45 MBytes CompactFlash card contains 6 64Mbit flash chips. A 64Mbit flash chip should give me 8MBytes, so 6 64Mbit flash chips should give me 6 X 8 = 48 MBytes. The 3 MBytes that "disappear", I think, is for taking care of bad chips that give out less than 64Mbit. This is the ATA technology patented by Sandisk that allows bad memory locations to be formatted out just like a hard disk. This technology allows the manufacturers to get better yield because they can keep the semi bad chips. See Rex's writeup on ATA at: techstocks.com

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