Equipment

Software

Device simulation as support in the modeling process

Sometimes in modeling work it is necessary to make technological verification with the help of device simulator. The program PISCES II of the Stanford University / USA offer following possibilities:

• Types of simulation:
  1. DC current - voltage relations
  2. Transient behavior
  3. AC analyze
• Technology- and Devices (Examples):
  1. Gate- Drain - characteristic of MOS devices (short channel effects)
  2. Bipolar elements with consideration of parasitic resistances
  3. Silicon on Insulator - structures
  4. CMOS - Latch Up
  5. Schottky - Diodes, PIN - Diodes

Following pictures are showing an simple NMOS (1.5um) example. After input of technological and process data we get an contour plot of doping and a doping profile.

With this entries the program computed the drain current component as a function of gate- and drain voltage with constant bulk bias.