Patents by Inventor Gustaaf Verhaegen

Gustaaf Verhaegen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8136078
    Abstract: A method for optimizing a design for a device is disclosed. Such an optimization is performed with respect to a predetermined metric, e.g. device speed, area, power consumption or yield. In one aspect, the method comprises obtaining a design for a device. The design comprises design components. The method also comprises determining from the design components at least one group of first design components that has a higher sensitivity to the predetermined metric than second design components. The first design components may be on the critical path in the design. The method further comprises tuning the first design components and the technology for manufacturing the first design components thus reducing the variability of the first design components and obtaining an optimized design with respect to the predetermined metric.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: March 13, 2012
    Assignee: IMEC
    Inventors: Axel Nackaerts, Gustaaf Verhaegen, Paul Marchal
  • Publication number: 20110084313
    Abstract: One inventive aspect relates to a method for forming integrated circuits and circuits obtained therewith. The method of forming a circuit pattern in a device layer of a semiconductor substrate comprises decomposing the circuit pattern in two constituent orthogonal subpatterns. The method further comprises transferring the pattern of a first subpattern to a hard mask layer overlying the device layer. The method further comprises transferring the pattern of the other subpattern to a photosensitive layer overlying the patterned hard mask layer. The method further comprises patterning the device layer using the patterned hard mask layer and the patterned photosensitive layer as a mask. The method further comprises removing the patterned hard mask layer and the patterned photosensitive layer. Furthermore memory or logic circuits obtained using the above technique are described.
    Type: Application
    Filed: December 15, 2010
    Publication date: April 14, 2011
    Applicant: IMEC
    Inventors: Liesbeth Witters, Axel Nackaerts, Gustaaf Verhaegen
  • Patent number: 7786477
    Abstract: A semiconductor device for determining an overlay error on a semiconductor substrate includes a first and a second transistor. Each transistor includes two diffusion regions associated with a gate, the diffusion regions of each transistor being arranged in a first direction. The second transistor is arranged adjacent to the first transistor in a second direction perpendicular to the first direction. The first and second gate each have a non-uniform shape, and the second gate is oriented with respect to an orientation of the first gate in such a way that an effect of an overlay error on a device parameter of the second transistor has an opposite sign in comparison to an effect of the overlay error on the device parameter of the first transistor.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: August 31, 2010
    Assignee: ASML Netherlands B.V.
    Inventors: Mircea Dusa, Axel Nackaerts, Gustaaf Verhaegen
  • Patent number: 7704850
    Abstract: A semiconductor device for determining an overlay error on a semiconductor substrate includes a first and a second transistor. Each transistor includes two diffusion regions associated with a gate, the diffusion regions of each transistor being arranged in a first direction. The second transistor is arranged adjacent to the first transistor in a second direction perpendicular to the first direction. The first and second gate each have a non-uniform shape, and the second gate is oriented with respect to an orientation of the first gate in such a way that an effect of an overlay error on a device parameter of the second transistor has an opposite sign in comparison to an effect of the overlay error on a corresponding device parameter of the first transistor.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: April 27, 2010
    Assignee: ASML Netherlands B.V.
    Inventors: Mircea Dusa, Axel Nackaerts, Gustaaf Verhaegen
  • Publication number: 20090217224
    Abstract: A method and system for setting up multiple patterning lithographic processing of a pattern in a single layer is disclosed. The multiple patterning lithographic processing comprises a first and second patterning step. In one aspect, a method includes, for at least one process condition, obtaining values for a metric expressing a splitting correlated process quality as function of design parameters of a pattern and/or split parameters for the multiple patterning lithographic processing. The method also includes evaluating the values of the metric and selecting based thereon design and split parameters considering the process condition. The method may further include deriving design and/or split guidelines for splitting patterns to be processed using multiple patterning lithographic processing based on the evaluation.
    Type: Application
    Filed: February 20, 2009
    Publication date: August 27, 2009
    Applicant: Interuniversitair Microelektronica Centrum vzw (IMEC)
    Inventors: Vincent Jean-Marie Pierre Paul Wiaux, Gustaaf Verhaegen
  • Publication number: 20090112344
    Abstract: A method for optimizing a design for a device is disclosed. Such an optimization is performed with respect to a predetermined metric, e.g. device speed, area, power consumption or yield. In one aspect, the method comprises obtaining a design for a device. The design comprises design components. The method also comprises determining from the design components at least one group of first design components that has a higher sensitivity to the predetermined metric than second design components. The first design components may be on the critical path in the design. The method further comprises tuning the first design components and the technology for manufacturing the first design components thus reducing the variability of the first design components and obtaining an optimized design with respect to the predetermined metric.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Applicant: Interuniversitair Microelektronica Centrum vzw (IMEC)
    Inventors: Axel Nackaerts, Gustaaf Verhaegen, Paul Marchal
  • Publication number: 20080149925
    Abstract: A semiconductor device for determining an overlay error on a semiconductor substrate includes a first and a second transistor. Each transistor includes two diffusion regions associated with a gate, the diffusion regions of each transistor being arranged in a first direction. The second transistor is arranged adjacent to the first transistor in a second direction perpendicular to the first direction. The first and second gate each have a non-uniform shape, and the second gate is oriented with respect to an orientation of the first gate in such a way that an effect of an overlay error on a device parameter of the second transistor has an opposite sign in comparison to an effect of the overlay error on the device parameter of the first transistor.
    Type: Application
    Filed: July 19, 2007
    Publication date: June 26, 2008
    Applicant: ASML Netherlands B.V.
    Inventors: Mircea Dusa, Axel Nackaerts, Gustaaf Verhaegen
  • Publication number: 20080061291
    Abstract: A semiconductor device for determining an overlay error on a semiconductor substrate includes a first and a second transistor. Each transistor includes two diffusion regions associated with a gate, the diffusion regions of each transistor being arranged in a first direction. The second transistor is arranged adjacent to the first transistor in a second direction perpendicular to the first direction. The first and second gate each have a non-uniform shape, and the second gate is oriented with respect to an orientation of the first gate in such a way that an effect of an overlay error on a device parameter of the second transistor has an opposite sign in comparison to an effect of the overlay error on a corresponding device parameter of the first transistor.
    Type: Application
    Filed: September 8, 2006
    Publication date: March 13, 2008
    Applicant: ASML Netherlands B.V.
    Inventors: Mircea Dusa, Axel Nackaerts, Gustaaf Verhaegen
  • Publication number: 20070172770
    Abstract: One inventive aspect relates to a method for forming integrated circuits and circuits obtained therewith. The method of forming a circuit pattern in a device layer of a semiconductor substrate comprises decomposing the circuit pattern in two constituent orthogonal subpatterns. The method further comprises transferring the pattern of a first subpattern to a hard mask layer overlying the device layer. The method further comprises transferring the pattern of the other subpattern to a photosensitive layer overlying the patterned hard mask layer. The method further comprises patterning the device layer using the patterned hard mask layer and the patterned photosensitive layer as a mask. The method further comprises removing the patterned hard mask layer and the patterned photosensitive layer. Furthermore memory or logic circuits obtained using the above technique are described.
    Type: Application
    Filed: December 22, 2006
    Publication date: July 26, 2007
    Inventors: Liesbeth Witters, Axel Nackaerts, Gustaaf Verhaegen