Photolithography: Difference between revisions

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A process used in the manufacturing of integrated circuits. It involves using light to transfer a pattern onto a substrate. It plays a crucial role in the publishing world and is similar to developing film in the sense that they both use light processes when transferring. It is also referred to as Semiconductor Lithography, Semiconductor Manufacturing Processes, Optical Lithography, or UV Lithography.
Photolithography is a process used in the publishing industry, involving light to transfer patterns onto substrates when manufacturing integrated circuits. The process dates back to 1796 when lithography was used as a low-cost method to publish theatrical works by Alois Senefelder. It was later developed in 1959 by Mohamed M. Atalla which is the process that is currently used. Photolithography is a more convenient process than typographers. In his book, Robinson writes, “The original purpose of type was simply copying. The job of the typographer was to imitate the scribal hand in a form that permitted exact and fast replication. Dozens, then hundreds, then thousands of copies were printed in less time than a scribe would need to finish one. This excuse for setting texts in type has disappeared. In the age of photolithography, digital scanning and offset printing, it is as easy to print directly from handwritten copy as from text that is typographically composed” (Robinson 18). <ref> Robinson, Solveig C. The Book in Society : An Introduction to Print Culture. Broadview Press, 2014. </ref>
 
== History ==
 
It can be traced back to 1796 when lithography was created by Alois Senefelder as a low-cost method of publishing theatrical works. In 1959, it was developed into the modern-day process by Mohamed M. Atalla.  
 
<ref> Ems. “Photolithography Technology – the Most Useful Introduction.” EMS, 13 Nov. 2024, electronicmanufacturingservice.org/photolithography-technology-the-most-useful-introduction/. Accessed 09 Sept. 2025. </ref>
 
=== In Context ===
 
"The original purpose of type was simply copying. The job of the typographer was to imitate the scribal hand in a form that permitted exact and fast replication. Dozens, then hundreds, then thousands of copies were printed in less time than a scribe would need to finish one. This excuse for setting texts in type has disappeared. In the age of photolithography, digital scanning and offset printing, it is as easy to print directly from handwritten copy as from text that is typographically composed" (Bringhurst 18).
 
<ref> Bringhurst, Robert. “The Grand Design.” Hartley and Marks, pp. 17–24, drive.google.com/file/d/1JwwxPhXwpuN1R8VAiwtVQLQ2cG1NsC_L/view. Accessed 09 Sept. 2025. </ref>
 
"Photolithography is the standard way of providing etch masks for pattern delineation. Many issues related to photolithography are independent of whether a wet or dry etch process is to be used" (Baca and Ashby 118).
 
<ref> Baca, A. G., Ashby, C. I. H., & Institution of Electrical Engineers. (2005). Fabrication of GaAs devices. Institution of Electrical Engineers. </ref>


== Notes ==
== Notes ==

Revision as of 08:32, 7 November 2025

Photolithography is a process used in the publishing industry, involving light to transfer patterns onto substrates when manufacturing integrated circuits. The process dates back to 1796 when lithography was used as a low-cost method to publish theatrical works by Alois Senefelder. It was later developed in 1959 by Mohamed M. Atalla which is the process that is currently used. Photolithography is a more convenient process than typographers. In his book, Robinson writes, “The original purpose of type was simply copying. The job of the typographer was to imitate the scribal hand in a form that permitted exact and fast replication. Dozens, then hundreds, then thousands of copies were printed in less time than a scribe would need to finish one. This excuse for setting texts in type has disappeared. In the age of photolithography, digital scanning and offset printing, it is as easy to print directly from handwritten copy as from text that is typographically composed” (Robinson 18). [1]

Notes

  1. ↑ Robinson, Solveig C. The Book in Society : An Introduction to Print Culture. Broadview Press, 2014.
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