Photolithography patent
The root words photo, litho, and graphy all have Greek origins, with the meanings 'light', 'stone' and 'writing' respectively. As suggested by the name compounded from them, photolithography is a printing method (originally based on the use of limestone printing plates) in which light plays an essential role. In the 1820s, Nicephore Niepce invented a photographic process that used Bitumen of Judea, a natural asphalt, as the first photoresist. A thin coating of the bitumen on a sheet of m… WebFeb 8, 1994 · 1. A photolithography test structure comprising: a substrate; a first curved insulating structure having a sloped sidewall deposited upon said substrate; an interconnect structure deposited upon said substrate a spaced distance from said sloped sidewall; and a pair of conductive pads deposited upon said substrate and connected at opposite ends of …
Photolithography patent
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WebJan 9, 2024 · ASML Holdings {{snapshot:ASML}} is the world’s largest supplier of extreme ultraviolet lithography (EUV) photolithography machines, which are used to produce … WebApr 8, 2024 · The photolithography process conditions, e.g., focus and exposure, are recorded or otherwise made available for subsequent computational operations such as optimization or tuning of a resist model. ... An example of such oxide or nitride material and its imaging is described in U.S. patent application Ser. No. 16/015,096, titled “Protective ...
Web1955: Photolithography Techniques Are Used to Make Silicon Devices Jules Andrus and Walter Bond adapt photoengraving techniques from printing technology to enable precise … WebA processing line (100), comprising: a photolithography tool (120) configured to process wafers in accordance with an operating recipe; an overlay metrology tool (130) configured to measure overlay errors associated with the processing of the wafers in the photolithography tool (120); and a controller (140) configured to receive a first overlay ...
WebPhotolithography represents the workhorse technology for device manufacture and has traditionally used a Hg or Hg–Xe discharge lamp as the radiation source. Resist systems … WebPatent Number: 11,424,135: Issued: 8/23/2024: Official Filing: View the Complete Patent: Application Number: 182,838/17: Government Interests: STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear …
WebAug 8, 2024 · 2024-07-06 Priority to US17/858,105 priority Critical patent/US20240344380A1/en 2024-03-21 Application granted granted Critical ... When the photolithography process is performed using a halftone mask in the non-display region, etching is performed by copper acid and oxalic acid to define a pattern. Then, the …
WebThe exposing process may be implemented by a lithography tool such as a scanner, a stepper, a wet lithography tool, or a cluster tool capable of photo exposing and applying a … fluxwood stemWebOct 4, 2024 · Patent No. 9,773,594 Continuous flow synthetic methods are used to make single phase magnetic metal alloy nanoparticles that do not contain rare earth metals. … green hill luxury rentalsWebJun 19, 2024 · A photolithography method is provided. The photolithography method includes forming a photoresist layer on a wafer, exposing a portion of the photoresist layer by using an exposure device and a mask, and forming a photoresist pattern by removing … green hill luxury apartments njWebEECS 598-002 Nanophotonics and Nanoscale Fabrication by P.C.Ku 17 Challenges in lens design Larger lens (required by better resolution) Æaberration Suitably rotating the lens in the step-and-scan system can minimize the aberration Finite linewidth of laser source Ædispersion Aspheric lens Æmore expensive Tighter spec on surface quality of lens flux workflowWebPUBLICATIONS, PATENTS, & PRESENTATIONS: (h-index=34) • Two book chapters and over 100 articles in refereed journals (a list is attached) ... • Thin film patterning using photolithography . PATENTS: 1. Inventor, “Transparent omniphobic thin film articles”, U.S. Patent No. 10,844,479; Nov. 24, 2024 greenhill lunch menuWebJun 25, 2002 · The present invention is a maskless photolithography system and method using a plasma display for creating two-dimensional and three-dimensional structures. Advantageously, the invention does not require masks, templates or stencils to create each of the planes or layers on a multi layer two-dimensional or three-dimensional structure. … flux wood round ascent tableWeboptical photolithography (Patent Literature 2). However, this method has an advantage of an edge remaining on the fine channel formed by optical photolithography (so that the edge and corner of the fine channel does not sag). However, the photolithography produces a high-cost microchip. [0005] One of the conventional methods (Patent Liter- flux wms 白皮书