×

Method of depositing conductors in high aspect ratio apertures under high temperature conditions

  • US 5,529,670 A
  • Filed: 12/22/1993
  • Issued: 06/25/1996
  • Est. Priority Date: 04/19/1991
  • Status: Expired due to Term
First Claim
Patent Images

1. In a process for depositing a titanium or titanium alloy from a deposition source onto an integrated circuit substrate, the substrate having a surface topography that includes at least one depression having an aspect ratio of approximately 1:

  • 1 or greater, the improvement comprising interposing a collimator and heating the substrate to at least approximately 450°

    to 500°

    C. during the deposition to enhance the thickness of said titanium or titanium alloy film as deposited at the bottom of said depression.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×