> Wafer memory... "Wafer Scale Integration" I believe he referred to it as at the time. An ambitious project back then (maybe even today) because it requires flawless wafer sized pieces of silicon. Even though silicon is the earth's most abundant (or second or whatever) element, the cost of fabrication of silicon integrated circuits is related to the yield of working chips from each wafer. Even some of those that fail to make the grade can sometimes pass at lower clock rates and can be marked and sold as lower spec. With wafer scale, it's all or nothing. The rejection rate must be huge, and that is probably what ate most of his investment in plant - the production of flawless silicon wafers.
Ian. > -----Original Message----- > From: wlenerz > Sent: 19 October 2001 14:29 > To: ql-users > Cc: wlenerz > Subject: Re: [ql-users] Clive Sinclair > > > On 17 Oct 2001, at 20:07, Malcolm Cadman wrote: > > > Also, do not forget that the first microdrives were > intended to be only > > the start of a whole range of innovative new ways for mass storage. > > Clive subsequently 'lost' a lot of his 'millions' investing > in plant and > > research to produce new devices that would have developed > and owned, and > > sold to the world. > Wafer memory... > > wolfgang > ----------------- > www.wlenerz.com > Visit our website at http://www.ubswarburg.com This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments.
