Resources Contact Us Home
Method of delay calculation for variation in interconnect metal process

Image Number 3 for United States Patent #6880142.

A method of calculating delay for a process variation includes finding a value for each of exactly two independent variables that results in a maximum or minimum variation of estimated cell delay plus net delay, calculating a variation of resistance from the value found for each of the exactly two independent variables, calculating a variation of capacitance from the value found for each of the exactly two independent variables, adding the calculated variation of resistance to a net resistance to generate a modified net resistance for a selected net, adding the calculated variation of capacitance to a net capacitance to generate a modified net capacitance for the selected net, and calculating the cell delay plus net delay from the modified net resistance and the modified net capacitance.

  Recently Added Patents
Electromagnetic shield for a passive electronic component in an active medical device implantable lead
System and method for creating, managing and trading hedge portfolios
Header rail for a shower screen or the like
Software self-checking systems and methods
Method and system for streaming digital video content to a client in a digital video network
Lightning-protective explosion-preventive fastener
Method and apparatus for increasing query traffic to a web site
  Randomly Featured Patents
Radio frequency resonator
Method of bolt hole strengthening in a fibrous composite laminate
Computer enclosure rack mounting system
Method of making an encapsulated microelectronic package having fluid carrying encapsulant channels
Substituted aniline derivatives
Ventilating and heating assembly
Stabilizer bushing for vehicle
Facsimile apparatus
Multi function torque converter with turbine engine idle disconnect and method of controlling a multi function torque converter for engine idle disconnect
Unsymmetrical 1:2-chromium complexes containing an azo compound and an azomethine compound