Projection Mask Aligners

Projection mask aligners are critical in precision lithography, enabling the transfer of circuit patterns onto wafers. They support high-resolution and reliable outcomes in semiconductor manufacturing.

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Common Applications

integrated circuit manufacturing

micro-electromechanical systems (MEMS)

nano-imprint lithography

optoelectronics

advanced packaging

Buying Guide

Projection Mask Aligners Buying Guide

When selecting a projection mask aligner, consider the specific requirements of your lithography process to ensure optimal results.

Here are essential factors to evaluate:

  • Verify the alignment system's compatibility with your wafer sizes and materials.
  • Check for available exposure modes and advanced features like multi-exposure or step-and-repeat capabilities.
  • Assess the condition of optical components and ensure their capability to deliver high-resolution images.
  • Confirm the availability of manuals and service records to facilitate maintenance and support.

Frequently Asked Questions

What is a projection mask aligner?
A projection mask aligner is a lithography tool used to transfer intricate patterns onto semiconductor wafers with high precision.
How do projection mask aligners differ from contact aligners?
Projection mask aligners use an optical system to project the pattern, reducing potential damage and achieving higher resolution compared to contact aligners.
What are the key benefits of using surplus projection mask aligners?
Surplus projection mask aligners offer cost savings while maintaining the capability to perform precise lithographic processes.
Can projection mask aligners handle different wafer sizes?
Yes, many projection mask aligners are designed to accommodate various wafer sizes, though compatibility should be verified for specific models.