[amp_mcq option1=”Physical lithography” option2=”Photolithography” option3=”Chemical lithography” option4=”Mechanical lithography” correct=”option2″]<\/p>\n
The correct answer is B. Photolithography.<\/p>\n
Photolithography is a process used to create patterns on a substrate by exposing it to light through a mask. The light causes a chemical reaction that changes the properties of the substrate, such as its solubility or electrical conductivity. This allows for the creation of precise patterns on the substrate, which can be used to create integrated circuits, microelectromechanical systems (MEMS), and other devices.<\/p>\n
Physical lithography is a process that uses a physical mask to transfer a pattern to a substrate. The mask is typically made of a material such as chrome or silicon dioxide, and it has the desired pattern etched into it. The substrate is then placed in contact with the mask, and a pressure is applied to transfer the pattern to the substrate.<\/p>\n
Chemical lithography is a process that uses a chemical reaction to transfer a pattern to a substrate. The substrate is typically coated with a photoresist, which is a material that is sensitive to light. The substrate is then exposed to light through a mask, which causes the photoresist to react in the exposed areas. The unexposed photoresist is then washed away, leaving behind the desired pattern on the substrate.<\/p>\n
Mechanical lithography is a process that uses a mechanical tool to transfer a pattern to a substrate. The tool is typically made of a material such as diamond or tungsten carbide, and it has the desired pattern etched into it. The substrate is then placed in contact with the tool, and the tool is used to scratch the pattern into the substrate.<\/p>\n
Photolithography is the most common type of lithography used in the semiconductor industry. It is a very precise process that can be used to create patterns with features as small as a few nanometers.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”Physical lithography” option2=”Photolithography” option3=”Chemical lithography” option4=”Mechanical lithography” correct=”option2″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[687],"tags":[],"class_list":["post-19791","post","type-post","status-publish","format-standard","hentry","category-vlsi-design-and-testing","no-featured-image-padding"],"yoast_head":"\n