Deep ultraviolet step-and-scan lithography machine
DUV stepper
Operating
Model: 3030EX6
Function: 180nm semiconductor process node lithography process
Engineer: Xu / +86-21-34206126-6018 / xu.jian@1
Location: East Area,Lithography Zone II(Canon)
Equipment ID: :ELT2DUV01
  • Basic Equipment Information
  • Operating Principle
  • Typical Application Case
Main Applicatio

It is used to transfer the chip circuit patterns on the photomask to the silicon wafer, serving as a core step in IC manufacturing. The basic working principle of a photolithography machine is to project patterns onto the silicon wafer by utilizing optical principles. It mainly consists of a light source, convex lenses, photoresist, a control system, and other components. This equipment is mainly used to achieve fully automatic alignment lithography at the 0.18 μm semiconductor process technology node.

 

Process/Testing Capabilities
  • CD: 180nm
  • wafer size: 6/8
  • overlay accuracy: 25nm

 

Technical Specification
  • Resolution ≦ 150 nm
  • NA (Numerical Aperture): 0.65~0.50 (Variable) 
  • Reduction Ratio: 1:5
  • Field Size: 22 mm x 22 mm 
  • Exposure Wavelength: KrF 248 nm
  • Reticle Size: 6 inch 
  • Wafer Size: 150 mm (6 inch), 200 mm (8 inch) (Selection) 
  • Overlay Accuracy ≦ 25 nm

Optical path structure diagram

This device adopts a 248 nm excimer laser as the light source, raising the minimum process node to the 180 nm level. It employs step-and-repeat projection lithography for the exposure process. The light source passes through a reticle, and after adjustment by optical lenses and compensation for various imaging errors, the circuit information on the reticle is projected onto the wafer in the form of reduced imaging. Meanwhile, a high-precision stage carries the silicon wafer in a step-and-repeat manner to achieve continuous exposure die by die until the entire wafer is covered with reticle patterns. The equipment features high precision and extremely fast exposure speed, and the entire exposure process is fully automated without manual intervention.

Carry out fully automatic gluing, exposure and development for 8-inch, 6-inch, 4-inch and 3-inch specifications respectively in different time periods according to demand.

The list below shows FAQs (click a question to view the answer). If your question is not listed, you can leave a message using the link.
FAQs
  • 01
    What type of photoresist is used for exposure?

    Currently using UV135g with a thickness of 400nm. 

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