Description
Imprint the electronic circuit design onto the wafers through a process known as photolithography. First, wafers are coated with photosensitive chemicals that harden when exposed to UV light. In sealed dark rooms light is shone through the image of the design through a miniaturising lens and on to the coated wafer. When the chemical is washed off the design remains. The wafers are built up layer by layer, repeating the photo etching process in each new layer. Some layers are cooked, some layers ionised by plasma, and some are baked in metal. Each treatment changes the properties for that layer.
Alternative labels
use photolithography
carrying out photolithography
carry out photolithography
imprinting wafers with circuit design
imprinting of wafers with circuit design
circuit design imprinting onto wafers
using photolithography
imprinting circuit design onto wafers
Skill type
skill/competence
Skill reusability level
occupation-specific
Relationships with occupations
Essential skill
Imprint circuit design onto wafers is an essential skill of the following occupations:
Semiconductor processor: Semiconductor processors manufacture electronic semiconductors as well as semiconductor devices, such as microchips or integrated circuits (IC’s). They may also repair, test, and review the products. Semiconductor processors work in cleanrooms and therefore need to wear a special lightweight outfit that fits over their clothing to prevent particles from contaminating their worksite.
Optional skill
Imprint circuit design onto wafers is optional for these occupations. This means knowing this skill may be an asset for career advancement if you are in one of these occupations.
References
