Our aim is to make microelectronic engineering student, themselves fut
ure circuit designers, aware of circuit testing by stressing the impor
tance of: a. Automatic generation of test patterns by the way of simul
ation and design tools. b. Circuit characterisation through : function
al tests (searching for stuck at faults), parameter tests (consumption
, levels, latch-up), dynamic tests (maximum function frequence). The i
mplementation of this practical work involves : A SUN work station per
two students VLSI Test System GR115 with emulator The Hilo System sim
ulator The SOLO 1400 design tool The Preprocessor GRSpan from GenRad T
he software package span-format created at the IXL laboratory.