MOTIS-An MOS timing simulator

Modelling and Discretization of Circuit Problems

“…ITA -iterated timing analysis. Historically, timing simulation was the first attempt to compute approximate waveforms for very large digital MOS circuits [36]. Here the nonlinear systems were completely decomposed into single equations, which were approximately solved by performing one single Gauss-Jacobi or Gauss-Seidel step.…”

A Novel Table-Based Approach for Design of FinFET Circuits

“…The use of LUTs to simulate circuits was first proposed by Chawla et al [1], where the goal was to obtain timing information in digital circuits. Shima et al [2] developed a 3-D LUT approach for simulating analog circuits.…”

“…From the point of computational efficiency, it is best to precompute the coefficients a p,j k [see (1)] and store them for I D as well as for the terminal charges. This would save substantial amount of run time in circuit simulation.…”

“…Furthermore, for some of the technologies under development, satisfactory device models are not available. The lookup-table (LUT) approach [1]- [12] provides an alternative to analytical models and is particularly useful for evaluating circuit performance for emerging technologies.…”

An improved relaxation approach for mixed system analysis with several simulation tools

“…Relaxation techniques are known to be successfully used for the electrical analysis of some types of circuits, mostly digital, and they were implemented in several programs as MOTIS [1], SPLICE [2], RELAX [3], etc. The main reasons that compel to choose relaxation iterations are: 1) Very high circuit size and complexity.…”