Patent ID: 7725861
Filing Date: 2010-05-25
Classification: G06F

Abstract:
1. A method comprising: providing, by using a computer, a circuit design having an objective; providing, by using the computer, a first photolithography hot spot filter comprising a first set of hot spot conditions based on photolithography simulations, the first set of hot spot conditions configured to optimize the objective of the circuit design and configured to identify potential hot spots in a global route of the circuit design; applying, by using the computer, the first hot spot filter to the global route of the circuit design to identify potential global hot spots and modifying the global route based on any identified potential global hot spots to produce a detailed route; providing, by using the computer, a second photolithography hot spot filter having a second set of hot spot conditions, the second set of hot spot conditions being less pessimistic than the first set of hot spot conditions and configured to identify potential hot spots in the detailed route; applying, by using the computer, the second hot spot filter to the detailed route to identify potential detailed hot spots and modifying the detailed route to produce a post-detailed route based on any identified potential detailed hot spots; and performing a rip-up and reroute of the post-detailed route to produce a layout, wherein the performing a rip-up and reroute of the post-detailed route comprises: