17945408. Substrate Bombardment with Ions having Targeted Mass using Pulsed Bias Phase Control simplified abstract (TOKYO ELECTRON LIMITED)

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Substrate Bombardment with Ions having Targeted Mass using Pulsed Bias Phase Control

Organization Name

TOKYO ELECTRON LIMITED

Inventor(s)

Sergey Voronin of Albany NY (US)

Qi Wang of Albany NY (US)

Hamed Hajibabaeinajafabadi of Albany NY (US)

Substrate Bombardment with Ions having Targeted Mass using Pulsed Bias Phase Control - A simplified explanation of the abstract

This abstract first appeared for US patent application 17945408 titled 'Substrate Bombardment with Ions having Targeted Mass using Pulsed Bias Phase Control

Simplified Explanation

The method described in the abstract involves plasma processing by generating plasma with specific ion densities and delivering an energetic ion flux to a substrate at a precise timing.

  • Plasma is generated by coupling a source power pulse to a plasma processing chamber.
  • The plasma contains first ions with a certain mass and second ions with a greater mass.
  • An energetic ion flux is delivered to the substrate by applying a delayed bias power pulse after a specific delay.
  • The delay is chosen based on the diffusion time constants of the ions to achieve a desired ion density ratio.

Potential Applications

This technology can be applied in:

  • Semiconductor manufacturing
  • Thin film deposition
  • Surface modification processes

Problems Solved

This technology addresses:

  • Controlling ion densities in plasma processing
  • Improving substrate surface quality
  • Enhancing process efficiency

Benefits

The benefits of this technology include:

  • Enhanced control over ion flux
  • Improved substrate processing quality
  • Increased process efficiency

Potential Commercial Applications

This technology can be utilized in:

  • Semiconductor industry for advanced processing techniques
  • Solar panel manufacturing for improved efficiency
  • Display technology for enhanced performance

Possible Prior Art

One potential prior art for this technology could be:

  • Research on plasma processing techniques with ion density control

Unanswered Questions

How does this technology compare to existing plasma processing methods?

This article does not provide a direct comparison with existing plasma processing methods. Further research or comparative studies would be needed to determine the advantages and limitations of this technology in comparison to existing methods.

What are the specific industries that could benefit the most from this technology?

While the potential applications are mentioned, a more detailed analysis of the specific industries that could benefit the most from this technology is not provided in the article. Further market research and industry collaborations would be necessary to identify the key sectors where this technology could have the most significant impact.


Original Abstract Submitted

A method of plasma processing includes generating plasma by coupling a source power pulse to a plasma processing chamber containing a substrate holder configured to support a substrate. The plasma includes first ions having a first mass and second ions having a second mass greater than the first mass. The ion density ratio of the second ions to the first ions is a first ratio. The method further includes delivering an energetic ion flux of second ions to the substrate by applying a delayed bias power pulse to the substrate holder after a delay between the source power pulse and the delayed bias power pulse. The delay is chosen based on the diffusion time constants of the first ions and the second ions so that the ion density ratio of the second ions to the first ions is a second ratio that is greater than the first ratio.