18525988. HIGH PERFORMANCE MOSFETS HAVING VARYING CHANNEL STRUCTURES simplified abstract (TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.)

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HIGH PERFORMANCE MOSFETS HAVING VARYING CHANNEL STRUCTURES

Organization Name

TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

Inventor(s)

Tetsu Ohtou of Hsinchu (TW)

Ching-Wei Tsai of Hsinchu (TW)

Jiun-Jia Huang of Beigang Township (TW)

Kuan-Lun Cheng of Hsinchu (TW)

Chi-Hsing Hsu of New Taipei City (TW)

HIGH PERFORMANCE MOSFETS HAVING VARYING CHANNEL STRUCTURES - A simplified explanation of the abstract

This abstract first appeared for US patent application 18525988 titled 'HIGH PERFORMANCE MOSFETS HAVING VARYING CHANNEL STRUCTURES

Simplified Explanation

The present disclosure describes a method for the formation of gate-all-around nano-sheet FETs with tunable performance. The method involves creating vertical structures with multilayer nano-sheet stacks, disposing a sacrificial gate structure, depositing an isolation layer, etching the sacrificial gate structure, removing second nano-sheet layers, and forming a metal gate structure around the suspended first nano-sheet layers.

  • Vertical structures with multilayer nano-sheet stacks
  • Sacrificial gate structure
  • Isolation layer
  • Etching process
  • Formation of suspended first nano-sheet layers
  • Metal gate structure

Potential Applications

The technology described in this patent application could be applied in the semiconductor industry for the development of advanced field-effect transistors with improved performance and tunability.

Problems Solved

This technology solves the problem of enhancing the performance and tunability of gate-all-around nano-sheet FETs by utilizing a novel method for their formation.

Benefits

The benefits of this technology include increased efficiency, improved control over device performance, and the potential for developing next-generation electronic devices.

Potential Commercial Applications

  • Semiconductor manufacturing
  • Electronics industry
  • Research and development in nanotechnology

Possible Prior Art

One possible prior art for this technology could be the development of gate-all-around FETs with different structures and materials for improved performance and functionality.

Unanswered Questions

How does this technology compare to existing methods for forming nano-sheet FETs?

This article does not provide a direct comparison with existing methods for forming nano-sheet FETs.

What are the specific performance metrics that can be tuned in these gate-all-around nano-sheet FETs?

The article does not specify the exact performance metrics that can be tuned in these gate-all-around nano-sheet FETs.


Original Abstract Submitted

The present disclosure describes a method for the formation of gate-all-around nano-sheet FETs with tunable performance. The method includes disposing a first and a second vertical structure with different widths over a substrate, where the first and the second vertical structures have a top portion comprising a multilayer nano-sheet stack with alternating first and second nano-sheet layers. The method also includes disposing a sacrificial gate structure over the top portion of the first and second vertical structures; depositing an isolation layer over the first and second vertical structures so that the isolation layer surrounds a sidewall of the sacrificial gate structure; etching the sacrificial gate structure to expose each multilayer nano-sheet stack from the first and second vertical structures; removing the second nano-sheet layers from each exposed multilayer nano-sheet stack to form suspended first nano-sheet layers; forming a metal gate structure to surround the suspended first nano-sheet layers.