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- Sinclair to Transform Computing (January 89)
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- Electronics guru Sir Clive Sinclair outlined his plans to transform"
- computing through a revolutionary new device which could put memory
- and processor chips together on the same unit.
- Sinclair owns 20 per cent of Cambridge based Anamartic, which is
- preparing to launch the first waferscale integration (WFI) memory
- device. Sir Clive claimed that the new chip would "completely
- transform computing". "You'll be able to use the waferscale instead of
- a hard disk," he said. "It will mean a one thousand times increase in
- the speed of memory access compared to currant hard disk standards".
- He added "this has been seen as the holy grail of computing for the
- last twenty years. We at Sinclair Research have solved the problems
- through Anamartic".
- Sinclair has been working on this project for sometime. For the
- past two years he has been seeking funding for research and
- development. Anamartic itself is refusing to comment on developments,
- and on the suggestion that its gadgetry would be shown for time at the
- International Solid State circuit conference in New York on February
- 15th. The firm is expected to show off a six inch diameter wafer than
- can store the equivalent of several hard disks.
- Anamartic is currently in negotiation with high end hardware
- manufacturers. If successful this technology will be scooped up by the
- makers of very expensive super computers and prices are likely to be
- high, just as transputer technology is available currently in machines
- such as the Atari Transputer Workstation. These cost a few thousand
- pounds but deliver performances equal to a machine ten times more
- expensive. Sinclair said that the home and small business ends of the
- market would be the last to benefit from such a development but
- acknowledged nonetheless that cheap computers would be able to use WFI
- in the near future.
- When asked if WFI would make him very rich he replied "I should
- very much expect so".
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- The Waferscale Explained.
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- Conventional chips are manufactured by setting layers on top of a
- wafer of silicon, slicing them up and throwing away the inevitable
- number which don't work. This is costly and wasteful but until now
- there has been no other reasonable alternative, because the more you
- try to cram onto a chip, the more certain it becomes that some part of
- it is going to fail, making the whole chip useless.
- With WFI all the chips can be kept on one wafer, effectively
- making one big chip. What makes WFI different is that most parts are
- built so they can work in more than one way. Special circuitry built
- into the wafer then tests the chip and can devise alternative routes
- round parts that don't work, increasing the proportion of working
- chips per batch. Testing the chip now involves just testing the
- special circuitry, saving the time taken to test each part of the
- wafer individually.
- The intentional redundancy built into the wafer mimics the way
- the human brain can work through different pathways, as when a stroke
- victim who has lost the power to speak can re-learn the skill using
- slightly different parts of the brain.
- Extra speed and performance is attained because all the workings
- are on one chip, so the different chips don't need to spend time
- communicating with each other.
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