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IBM technology installation for Cadence
The IBM cmos6sf technology, a 0.25um CMOS technology is available with a design kit developed originally at CERN. The kit is now maintained at RAL, which have implemented a script that sets up cadence and adds design flows etc.To install it, add the following lines in your .bashrc file in your login directory:
if [ -f /usr/local/cad/scripts/cmos6sf1.0.1rc
] ; then
. /usr/local/cad/scripts/cmos6sf1.0.1rc
fi
There may be newer versions of the design kit for IBM cmos6sf. Please contact the system adminstrator concerning this.
Make your .bashrc files sourced, e. g. by opening a new shell.
Invocation of cadence for IBM technology
Change into the directory you created for the technology you wanted to use, e. g. ~/libs/ibm/cmos6sf.Type
openDesignKit
(without ampersand).
This will invoke a script that starts cadence to be used with this technology and sets up all necessary files at the time of first invocation.
Special issues about IBM technology
The simulator used for analogue simulation is not spectre, the SPICE derivative that comes along with cadence, but Metasoft's HSPICE. You need to install this also if you want to do analogue circuit simulation with IBM cmos6sf.DRC is offered in two ways:
A reasonable DRC can be made with the Diva Design Rule Checker that is built into the Cadence Virtuoso Layout editor. This is rather fast, and hence can be used interactively, but does not cover all design rules that are necessary.
The final DRC must be performed with Dracula. This must also be
installed at latest when you are reaching a design state which looks similar
to what you want to submit.