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via.h

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// SuperMix version 1.0  C++ source file
//
// Copyright (c) 1999 California Institute of Technology.
// All rights reserved.
//
// Redistribution and use in source and binary forms for noncommercial
// purposes are permitted provided that the above copyright notice and
// this paragraph are duplicated in all such forms and that any
// documentation and other materials related to such distribution and
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// Institute of Technology. Redistribution and/or use in source or
// binary forms is not permitted for any commercial purpose. Use of
// this software does not include a permitted use of the Institute's
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//
// DISCLAIMER:
// THIS SOFTWARE AND/OR RELATED MATERIALS ARE PROVIDED "AS-IS" WITHOUT
// WARRANTY OF ANY KIND INCLUDING ANY WARRANTIES OF PERFORMANCE OR
// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE (AS SET
// FORTH IN UCC 23212-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE
// LICENSED PRODUCT, HOWEVER USED.  IN NO EVENT SHALL CALTECH/JPL BE
// LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING BUT NOT LIMITED TO
// INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, INCLUDING ECONOMIC
// DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, REGARDLESS OF
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// RELATING TO QUALITY AND PERFORMANCE OF THE SOFTWARE AND/OR RELATED
// MATERIALS.
//

#ifndef VIA_H
#define VIA_H 1

#include "parameter.h"

class L_via : public abstract_real_parameter
{
public:
  parameter D;

  parameter H;

  L_via() : abstract_real_parameter(), D(0.0), H(0.0), coeff(muVacuum/(2.0*Pi))
  { }

  double get() const
  {
    if (D/H < 0.2)
      error::warning("Via hole D/H ratio should be > 0.2 in class L_via");

    if (D/H > 1.5)
      error::warning("Via hole D/H ratio should be < 1.5  in class L_via");

    if (H < 100.*Micro*Meter)
      error::warning("Via hole height should be > 100 microns in class L_via");

    if (H > 635.*Micro*Meter)
      error::warning("Via hole height should be < 635 microns in class L_via");

    double r = 0.5*D;
    double hypot = sqrt(r*r + H*H);
    return coeff * (H * log((H + hypot)/r) + 1.5 * (r - hypot));
  }

private:
  double coeff;
};

#endif /* VIA_H */

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