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FAN Algorithm
FAN algorithm is an algorithm for automatic test pattern generation (ATPG). It was invented in 1983 by Hideo Fujiwara and Shimono Takeshi at the Department of Electronic Engineering, Osaka University, Japan. It was the fastest ATPG algorithm at that time and was subsequently adopted by industry. The FAN algorithm succeeded in reducing the number of backtracks by adopting new heuristic A heuristic (; ), or heuristic technique, is any approach to problem solving or self-discovery that employs a practical method that is not guaranteed to be optimal, perfect, or rational, but is nevertheless sufficient for reaching an immediate, ...s such as unique sensitization and multiple back tracing. Unique sensitization is to determine as many signal values as possible that can be uniquely implied. Multiple backtracing is concurrent backtracing of more than one path, which is more efficient than backtracing along a single path. In order to reduce the number of backtracks, it is important to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Test Pattern Generation
ATPG (acronym for both Automatic Test Pattern Generation and Automatic Test Pattern Generator) is an electronic design automation method/technology used to find an input (or test) sequence that, when applied to a digital circuit, enables automatic test equipment to distinguish between the correct circuit behavior and the faulty circuit behavior caused by defects. The generated patterns are used to test semiconductor devices after manufacture, or to assist with determining the cause of failure (failure analysis). The effectiveness of ATPG is measured by the number of modeled defects, or fault models, detectable and by the number of generated patterns. These metrics generally indicate test quality (higher with more fault detections) and test application time (higher with more patterns). ATPG efficiency is another important consideration that is influenced by the fault model under consideration, the type of circuit under test (Scan chain, full scan, synchronous sequential, or asynchron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osaka University
, abbreviated as , is a public research university located in Osaka Prefecture, Japan. It is one of Japan's former Imperial Universities and a Designated National University listed as a "Top Type" university in the Top Global University Project. The university is often ranked among the top three public universities in Japan, along with the University of Tokyo and Kyoto University. It is ranked third overall among Japanese universities and 75th worldwide in the 2022 QS World University Rankings. Osaka University was one of the earliest modern universities in Japan at its founding in 1931. The history of the institution includes much older predecessors in Osaka such as the KaitokudÅ founded in 1724 and the Tekijuku founded in 1838. In 2007, it merged with Osaka University of Foreign Studies and became the largest national university in Japan. Osaka University is one of the most productive research institutions in Japan. Numerous prominent scholars and scientists have attended or w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heuristic
A heuristic (; ), or heuristic technique, is any approach to problem solving or self-discovery that employs a practical method that is not guaranteed to be optimal, perfect, or rational, but is nevertheless sufficient for reaching an immediate, short-term goal or approximation. Where finding an optimal solution is impossible or impractical, heuristic methods can be used to speed up the process of finding a satisfactory solution. Heuristics can be mental shortcuts that ease the cognitive load of making a decision. Examples that employ heuristics include using trial and error, a rule of thumb or an educated guess. Heuristics are the strategies derived from previous experiences with similar problems. These strategies depend on using readily accessible, though loosely applicable, information to control problem solving in human beings, machines and abstract issues. When an individual applies a heuristic in practice, it generally performs as expected. However it can alternatively cre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
