18432923. METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE simplified abstract (Mitsubishi Electric Corporation)

From WikiPatents
Jump to navigation Jump to search

METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE

Organization Name

Mitsubishi Electric Corporation

Inventor(s)

Katsumi Nakamura of Tokyo (JP)

METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18432923 titled 'METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE

Simplified Explanation

The semiconductor device described in the abstract includes an N drift layer, a P base layer, and an N buffer layer with specific trap levels.

  • N drift layer of a first conductivity type in the semiconductor substrate
  • P base layer on top of the N drift layer
  • N buffer layer of the first conductivity type under the N drift layer with higher impurity concentration
  • N buffer layer consists of a first buffer layer without trap levels from lattice defects and a second buffer layer with two trap levels from lattice defects

Potential Applications

The technology described in this patent application could be applied in:

  • Power electronics
  • Semiconductor devices
  • Solar cells

Problems Solved

This technology helps in:

  • Improving the performance of semiconductor devices
  • Reducing defects in the semiconductor substrate
  • Enhancing the efficiency of power electronics

Benefits

The benefits of this technology include:

  • Higher efficiency in power conversion
  • Improved reliability of semiconductor devices
  • Enhanced performance of solar cells

Potential Commercial Applications

The potential commercial applications of this technology could be in:

  • Semiconductor manufacturing companies
  • Power electronics industry
  • Solar energy companies

Possible Prior Art

One possible prior art for this technology could be:

  • Previous patents related to semiconductor device structures with buffer layers

Unanswered Questions

How does this technology compare to existing semiconductor device structures in terms of performance and efficiency?

This article does not provide a direct comparison with existing semiconductor device structures in terms of performance and efficiency. Further research or testing may be needed to determine the advantages of this technology over existing ones.

What are the specific manufacturing processes involved in creating the N buffer layer with trap levels in this semiconductor device?

The article does not delve into the specific manufacturing processes involved in creating the N buffer layer with trap levels. Additional information or documentation from the patent application may be required to understand the manufacturing techniques used in this technology.


Original Abstract Submitted

A semiconductor device includes: an N drift layer of a first conductivity type formed in the semiconductor substrate; a P base layer formed on the N drift layer; and an N buffer layer of the first conductivity type formed under the N drift layer and higher in peak impurity concentration than the N drift layer. The N buffer layer includes: a first buffer layer in which a trap level derived from lattice defect is not detected by a photoluminescence method; and a second buffer layer provided between the first buffer layer and the N drift layer and in which two types of trap levels derived from lattice defect are detected by the photoluminescence method.