FastCap and FastHenry, from MIT (Massachusetts Institute of Technology) are two free parasitics extractor tools for capacitance, and inductance and resistance. Quoted in many scientific articles, are considered golden references in their field.
FastCap is included as a compiled stand alone version in any LayoutEditor package and it can be used separate from the LayoutEditor by manual call. However the most convenient way to use is via the ExtractionCapacitance within the LayoutEditor. Any documentation and also the source code for it, you will find on this page.
Copyright (C) 2003 by the Board of Trustees of Massachusetts Institute of Technology, hereafter de signated as the Copyright Owners.
License to use, copy, modify, sell and/or distribute this software and its documentation for any purpose is hereby granted without royalty, subject to the following terms and conditions:
The above copyright notice and this permission notice must appear in all copies of the software and related documentation.
The names of the Copyright Owners may not be used in advertising or publicity pertaining to distribution of the software without the specific, prior written permission of the Copyright Owners.
THE SOFTWARE IS PROVIDED "AS-IS" AND THE COPYRIGHT OWNERS MAKE NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, BY WAY OF EXAMPLE, BUT NOT LIMITATION. THE COPYRIGHT OWNERS MAKE NO REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT INFRINGE ANY PATENTS, COPYRIGHTS TRADEMARKS OR OTHER RIGHTS. THE COPYRIGHT OWNERS SHALL NOT BE LIABLE FOR ANY LIABILITY OR DAMAGES WITH RESPECT TO ANY CLAIM BY LICENSEE OR ANY THIRD PARTY ON ACCOUNT OF, OR ARISING FROM THE LICENSE, OR ANY SUBLICENSE OR USE OF THE SOFTWARE OR ANY SERVICE OR SUPPORT.
LICENSEE shall indemnify, hold harmless and defend the Copyright Owners and their trustees, officers, employees, students and agents against any and all claims arising out of the exercise of any rights under this Agreement, including, without limiting the generality of the foregoing, against any damages, losses or liabilities whatsoever with respect to death or injury to person or damage to property arising from or out of the possession, use, or operation of Software or Licensed Program(s) by LICENSEE or its customers.