====== Worst case analysis - spectre'a ======
<code>details: file:///$CDS/designKits/ams_v3.70/www/appnotes/analog/ana_rev.html</code> \\
On the icfb menu you choose // HIT-KIT Utilities // -> //Corner analysis//. \\
In the newly opened of corner analysis window we are making:
  * Simulator -- **spectre**.
  * In //Circuit name// field enter a simulating cell name.
  * In //Supply voltage name// field enter the variable name of power supply value (must be set in dc voltage field in vdc supplying the circuit)
  * Adding a // corner // through the //add corner// button and choose a right model section from combo-box:
     * wp - Worst Power
     * ws - Worst Speed
     * wo - Worst One
     * wz - Worst Zero.
\\ \\
Save settings pushing **OK** \\
Next, open a simulating cell and run //Virtuoso Analog Environment//. From //tools// menu choose //corners analysis//. If everything well was done, a window will appear with loaded analyses. The analyses types (dc, ac, tran) and variables are setting in //analog environment//. However outputs may be setting on //analog environment// or //corner analysys// tools.

===== Worst case setting =====
^  Case  ^  corner no.  ^  MOS  ^  RES  ^  CAP  ^  BJT  ^  Temp  ^  Supply  ^
|  Typ  |  1  |  TM  |  TM  |  TM  |  TM  |  typ  |  typ  |
|  WP  |  2  |  WP  |  WP  |  WP  |  HS  |  min  |  max  |
|  WS  |  3  |  WS  |  WS  |  WS  |  HB  |  max  |  min  |
|  WS  |  4  |  WS  |  WS  |  WS  |  LB  |  min  |  min  |
|  WOWP  |  5  |  WO  |  WP  |  WP  |  HS  |  min  |  max  |
|  WOWS  |  6  |  WO  |  WS  |  WS  |  HB  |  max  |  min  |
|  WZWP  |  7  |  WZ  |  WP  |  WP  |  HS  |  min  |  max  |
|  WZWS  |  8  |  WZ  |  WS  |  WS  |  HB  |  max  |  min  |