Lateral Single Gate Silicon Transistor (epo) Patents (Class 257/E21.424)
  • Publication number: 20080203489
    Abstract: Mechanisms for ensuring the migratability of circuits into future technologies while minimizing fabrication costs and maintaining or improving power efficiency are provided. A mask layer is introduced to portions of the integrated circuit prior to a stress inducing layer being applied to the integrated circuit. In an exemplary embodiment, a tensile or compressive film is applied to the devices on the integrated circuit chip but is removed from those devices whose operation is to be modified. Thereafter, a tensile or compressive strain layer is applied to the devices whose film was removed. An additional mask layer may then be used to effect a halo or well implant to relax the strain on the devices not being protected by the mask layer. In this way, the current of the non-protected devices is reduced back to its original target design point.
    Type: Application
    Filed: May 5, 2008
    Publication date: August 28, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen L. Runyon, Scott Stiffler
  • Patent number: 7378318
    Abstract: A system and method for ensuring the migratability of circuits into future technologies while minimizing fabrication costs and maintaining or improving power efficiency are provided. A mask layer is introduced to portions of the integrated circuit prior to a stress inducing layer being applied to the integrated circuit. In an exemplary embodiment of the present invention, a tensile or compressive film is applied to the devices on the integrated circuit chip but is removed from those devices whose operation is to be modified. Thereafter, a tensile or compressive strain layer is applied to the devices whose film was removed. An additional mask layer may then be used to effect a halo or well implant to relax the strain on the devices not being protected by the mask layer. In this way, the current of the non-protected devices is reduced back to its original target design point.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: May 27, 2008
    Assignee: International Business Machines Corporation
    Inventors: Stephen L. Runyon, Scott Stiffler