Title:
SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2014/115790
Kind Code:
A1
Abstract:
Provided is a highly reliable semiconductor device and a method for manufacturing same. The method for manufacturing the semiconductor device includes: a step for forming an interlayer insulating film on a semiconductor substrate; a step for forming a conductive plug in the interlayer insulating film, the conductive plug having a top surface for forming the same plane as the top surface of the interlayer insulating film; a step for forming a first titanium film on the interlayer insulating film and the conductive plug; a step for forming an aluminum diffusion-preventing film on the first titanium film; a step for forming a second titanium film on the aluminum diffusion-preventing film; a step for forming an aluminum film on the second titanium film; and a step for shaping the area from the aluminum film to the first titanium film by etching to form wiring.
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Inventors:
KANSAKU TAKASHI (JP)
Application Number:
PCT/JP2014/051329
Publication Date:
July 31, 2014
Filing Date:
January 23, 2014
Export Citation:
Assignee:
PS4 LUXCO SARL (LU)
KANSAKU TAKASHI (JP)
KANSAKU TAKASHI (JP)
International Classes:
H01L21/28; H01L21/3205; H01L21/3065; H01L21/3213; H01L21/768; H01L23/532
Foreign References:
JP2004207676A | 2004-07-22 | |||
JP2003332338A | 2003-11-21 | |||
JP2011233833A | 2011-11-17 | |||
JP2000306999A | 2000-11-02 | |||
JPH0855837A | 1996-02-27 | |||
JP2003092271A | 2003-03-28 | |||
JPS639954A | 1988-01-16 |
Attorney, Agent or Firm:
KATO, Asamichi (JP)
Asamichi Kato (JP)
Asamichi Kato (JP)
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