Philip Green Educational - Slide Set S44 - Computers
4 - This man is baking wafers of silicon in an oven to a temperature of about 1,000 degrees celsius. The silicon must be about 99.9999% pure before it can be made into chips. Elements are introduced to alter the way electricity will flow through the chips. The cleanest of manufacturing conditions are essential because the tiniest speck of dust can cause the chip to be useless.
*Taken from the Teachers' Notes for this set.
Even after a 'boil wash' Neville handled his undies with the utmost caution...