Computer Chip
construction _—
__speeds up

CANADIAN™ ENGINEERS have
developed 4° process” which — can
speed up; by more than 50 times, a
- crucial _ step in computer circuit
production. ns
— oe Dres. Albert ‘Leung, of - the
Department of Engineering Science
at Simon Fraser University, has .
developed ‘a.’process -which “ uses
“.. computer arid laser technology :to
«build integrated ‘circuit (IC) chips,
‘tiny electronic components that are
~ the heart of computer ‘systems.

_.-Each IC-‘contains hundreds of .
microscopic electrical - circuits:

‘which allow. the computer to -pro-

~ are useful for- extremely specialized
programs, especially if these in-
‘volve:a lot of data: for instance in---

terpreting: and. displaying pictures _
tellite ss

to “build up”’ a standard chip into
a semi-custom prototype. At pres-
ent, the design process takes six to
twelve weeks. Modifications are

, usually required before the chip
can be produced for use.

Dr. Leung says his process can
reduce the ‘time required to con-
struct the“prototype to only one
. day. This: ‘Saves the designer’ 's time,
shortens © the - ’ design cycle, and
reduces costs, he says.

“Conventional techniques rely on
the construction ofa model, or.

‘mask’, of the chip anywhere from

20 to 100 times as large : as the ace.

‘tual chip.
AL ‘step-and-repeat? ‘machine is
“used -to scale’ this: model.down to

the: fi ye ‘malig procedure is’

prototype: pte te
‘directly. '

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