U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Process of fabrication planarized metallurgy structure for a semiconductor device

Patent 5441915 Issued on August 15, 1995. Estimated Expiration Date: Icon_subject March 18, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Method for connecting electronic components with dummy patterns
Patent #: 4972580
Issued on: 11/27/1990
Inventor: Nakamura

Semiconductor integrated circuit device in which a semiconductor chip is mounted with solder bumps for mounting to a wiring substrate
Patent #: 5027188
Issued on: 06/25/1991
Inventor: Owada, et al.

Semiconductor integrated circuit with dummy patterns
Patent #: 5032890
Issued on: 07/16/1991
Inventor: Ushiku, et al.

Semiconductor device
Patent #: 5066997
Issued on: 11/19/1991
Inventor: Sakurai, et al.

Planarization process utilizing three resist layers
Patent #: 5077234
Issued on: 12/31/1991
Inventor: Scoopo, et al.

Semiconductor integrated circuit device having a gate array with a RAM and by-pass signal lines which interconnect a logic section and I/O unit circuit of the gate array
Patent #: 5103282
Issued on: 04/07/1992
Inventor: Isomura, et al.

Manufacturing method for a semiconductor device having a bias sputtered insulating film Patent #: 5182235
Issued on: 01/26/1993
Inventor: Eguchi

Inventor

Application

No. 214852 filed on 03/18/1994

US Classes:

438/631, Having planarization step257/211, Multi-level metallization257/E21.244, Involving dielectric removal step (EPO)257/E21.58, Planarizing dielectric (EPO)438/926DUMMY METALLIZATION

Examiners

Primary: Quach, T. N.

Attorney, Agent or Firm

Foreign Patent References

  • 1-196141 JP. 08/25/1989

International Class

H01L 021/283

Abstract

A method for fabricating a metallurgy system is described wherein a first level of metallurgy is formed, having a plurality of close uniformly spaced conductive line of a predetermined width, and wherein there are included larger gaps between the conductive lines. The areas in the larger gaps are filled with dummy lines, where the gap is equal to or greater than three times the feature size or alternatively the width of the conductive lines.

Other References

  • Korczynski, E., et al., "Improved Submicron Inter-Metal . . . " Microelectronics Manufacturing Technology, Jan. 1992, pp. 22-2
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