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- LREF, WREF
In HSPICE these are ``channel length reference'' and ``channel width
reference''. There are no WRspice equivalents.
- XW, XL
In HSPICE these account for masking and etching effects. In release
3.1.5 and later, the XW and XL parameters are handled by
the BSIM3 bulk-mos models (levels 7, 8, 9, 47, 49, and 53)
implementing the formula below. With earlier releases, one must
modify WINT and LINT.
Stephen R. Whiteley