Today, many designers are not using simulation early enough or often enough in the design process. This opens the door for defect escapes that may not be uncovered until late in the design process when correction costs are highest. Whether you’re creating a new circuit design or trying to determine whether a substitute for an out-of-stock component will function properly in your existing design, simulation can be a vital, time and money saving tool. In fact, the cost of fixing flaws grows exponentially as you progress through the design cycle, so being able to spot errors early on is critical.