Patent · US Expired

Semiconductor device and production thereof

US6187100A · kind A · utility

1Cited by
11References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 7, 1999
Grant dateFeb 13, 2001
Priority date
Expiry dateOct 7, 2019

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E10/546
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

A semiconductor device containing a polycrystalline silicon thin film wherein crystal grains of the silicon thin film have mainly a columnar structure and a crystal orientation of individual crystal grains is almost in a uniform direction can be produced by depositing a non-impurity-doped silicon thin film or an impurity layer on an interface of underlying film, followed by deposition of impurity-doped silicon thin film, if necessary, followed by heat treatment for polycrystallization.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.