ch13.c.htm

介绍asci设计的一本书

); and (2) without parameter names (<A HREF="CH13.c.htm#23166" CLASS="XRef">
Table&nbsp;13.20</A>
). MOSIS uses format (2). The first 58 parameters starting with <SPAN CLASS="BodyComputer">
VFB</SPAN>
 (19 rows of 3 parameters plus one, <SPAN CLASS="BodyComputer">
XPART</SPAN>
) are the same order in format (1) and (2). Format (2) uses two dummy parameters (zero) following <SPAN CLASS="BodyComputer">
XPART</SPAN>
. The final nine parameters (<SPAN CLASS="BodyComputer">
N0</SPAN>
 to <SPAN CLASS="BodyComputer">
WND</SPAN>
) are the same order in both formats. There are 10 additional parameters that follow the <SPAN CLASS="EmphasisPrefix">
n</SPAN>
- and <SPAN CLASS="EmphasisPrefix">
p</SPAN>
-channel transistor parameters that model the <SPAN CLASS="EmphasisPrefix">
n</SPAN>
- and <SPAN CLASS="EmphasisPrefix">
p</SPAN>
-diffusion, respectively (in the same order in both formats). To complicate things further: (i) HSPICE, SPICE, and PSpice use different names for some parameters (for example PSpice uses <SPAN CLASS="BodyComputer">
VFB</SPAN>
, HSPICE uses <SPAN CLASS="BodyComputer">
VFB0</SPAN>
); (ii) HSPICE accepts names for the <A NAME="marker=107763">
 </A>
dummy parameters (<SPAN CLASS="BodyComputer">
DUM1</SPAN>
<A NAME="marker=107768">
 </A>
 and <SPAN CLASS="BodyComputer">
DUM2</SPAN>
), but PSpice does not; (iii) HSPICE accepts the final parameter <SPAN CLASS="BodyComputer">
DS</SPAN>
 (though it is ignored), but PSpice does not (<SPAN CLASS="BodyComputer">
DS</SPAN>
<A NAME="marker=107767">
 </A>
 models mask bias and can be neglected without too much fear). </P>
<P CLASS="ExerciseNoIndent">
<A NAME="pgfId=107578">
 </A>
Convert the models shown in <A HREF="CH13.c.htm#23166" CLASS="XRef">
Table&nbsp;13.20</A>
 to format (2) for your chosen simulator (PSpice <SPAN CLASS="BodyComputer">
LEVEL  =  4</SPAN>
<A NAME="marker=107766">
 </A>
, HSPICE <SPAN CLASS="BodyComputer">
LEVEL  =  13</SPAN>
<A NAME="marker=107765">
 </A>
). Compare the resulting <SPAN CLASS="EquationVariables">
I</SPAN>
<SUB CLASS="SubscriptVariable">
DS </SUB>
&#8211;<SPAN CLASS="EquationVariables">
V</SPAN>
<SUB CLASS="SubscriptVariable">
DS</SUB>
 characteristics with the <SPAN CLASS="BodyComputer">
LEVEL  =  3</SPAN>
 parameters (<A HREF="CH13.a.htm#25633" CLASS="XRef">
Table&nbsp;13.14</A>
) and the (PSpice) <SPAN CLASS="BodyComputer">
LEVEL  =  4</SPAN>
 parameters (<A HREF="CH13.a.htm#31851" CLASS="XRef">
Table&nbsp;13.15</A>
) for the G5 process. MOSIS has stored the results of its process runs in the format shown in <A HREF="CH13.c.htm#23166" CLASS="XRef">
Table&nbsp;13.20</A>
.</P>
<TABLE>
<TR>
<TD ROWSPAN="1" COLSPAN="2">
<P CLASS="TableTitle">
<A NAME="pgfId=119859">
 </A>
TABLE&nbsp;13.20&nbsp;<A NAME="23166">
 </A>
MOSIS SPICE parameters (Problem <A HREF="CH13.c.htm#23701" CLASS="XRef">
13.30</A>
).<A HREF="#pgfId=119858" CLASS="footnote">
1</A>
</P>
</TD>
</TR>
<TR>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="Computer">
<A NAME="pgfId=119863">
 </A>
*NMOS PARAMETERS</P>
<P CLASS="Computer">
<A NAME="pgfId=119864">
 </A>
-7.05628E-01,-3.86432E-02, 4.98790E-02</P>
<P CLASS="Computer">
<A NAME="pgfId=119865">
 </A>
 8.41845E-01, 0.00000E+00, 0.00000E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119866">
 </A>
 7.76570E-01,-7.65089E-04,-4.83494E-02</P>
<P CLASS="Computer">
<A NAME="pgfId=119867">
 </A>
 2.66993E-02, 4.57480E-02,-2.58917E-02</P>
<P CLASS="Computer">
<A NAME="pgfId=119868">
 </A>
-1.94480E-03, 1.74351E-02,-5.08914E-03</P>
<P CLASS="Computer">
<A NAME="pgfId=119869">
 </A>
 5.75297E+02,1.70587E-001,4.75746E-001</P>
<P CLASS="Computer">
<A NAME="pgfId=119870">
 </A>
 3.30513E-01, 9.75110E-02,-8.58678E-02</P>
<P CLASS="Computer">
<A NAME="pgfId=119871">
 </A>
 3.26384E-02, 2.94349E-02,-1.38002E-02</P>
<P CLASS="Computer">
<A NAME="pgfId=119872">
 </A>
 9.73293E+00,-5.62944E+00, 6.55955E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119873">
 </A>
 4.37180E-04,-3.07010E-03, 8.94355E-04</P>
<P CLASS="Computer">
<A NAME="pgfId=119874">
 </A>
-5.05012E-05,-1.68530E-03,-1.42701E-03</P>
<P CLASS="Computer">
<A NAME="pgfId=119875">
 </A>
-1.11542E-02,-9.58423E-04, 4.61645E-03</P>
<P CLASS="Computer">
<A NAME="pgfId=119876">
 </A>
-1.04401E-03, 1.29001E-03,-7.10095E-04</P>
<P CLASS="Computer">
<A NAME="pgfId=119877">
 </A>
 6.92716E+02,-5.21760E+01, 7.00912E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119878">
 </A>
-6.41307E-02, 1.37809E+00, 4.15455E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119879">
 </A>
 8.86387E+00, 2.06021E+00,-6.19817E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119880">
 </A>
 9.02467E-03, 2.06380E-04,-5.20218E-03</P>
<P CLASS="Computer">
<A NAME="pgfId=119881">
 </A>
9.60000E-003, 2.70000E+01, 5.00000E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119882">
 </A>
3.60204E-010,3.60204E-010,4.37925E-010</P>
<P CLASS="Computer">
<A NAME="pgfId=119883">
 </A>
1.00000E+000,0.00000E+000,0.00000E+000</P>
<P CLASS="Computer">
<A NAME="pgfId=119884">
 </A>
1.00000E+000,0.00000E+000,0.00000E+000</P>
<P CLASS="Computer">
<A NAME="pgfId=119885">
 </A>
0.00000E+000,0.00000E+000,0.00000E+000</P>
<P CLASS="Computer">
<A NAME="pgfId=119886">
 </A>
0.00000E+000,0.00000E+000,0.00000E+000</P>
<P CLASS="Computer">
<A NAME="pgfId=119887">
 </A>
*N+ diffusion:: </P>
<P CLASS="Computer">
<A NAME="pgfId=119888">
 </A>
2.1, 3.5e-04, 2.9e-10, 1e-08, 0.8</P>
<P CLASS="Computer">
<A NAME="pgfId=119889">
 </A>
0.8, 0.44, 0.26, 0, 0</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="Computer">
<A NAME="pgfId=119891">
 </A>
*PMOS PARAMETERS</P>
<P CLASS="Computer">
<A NAME="pgfId=119892">
 </A>
-2.02610E-01, 3.59493E-02,-1.10651E-01</P>
<P CLASS="Computer">
<A NAME="pgfId=119893">
 </A>
 8.25364E-01, 0.00000E+00, 0.00000E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119894">
 </A>
 3.54162E-01,-6.88193E-02, 1.52476E-01</P>
<P CLASS="Computer">
<A NAME="pgfId=119895">
 </A>
-4.51065E-02, 9.41324E-03, 3.52243E-02</P>
<P CLASS="Computer">
<A NAME="pgfId=119896">
 </A>
-1.07507E-02, 1.96344E-02,-3.51067E-04</P>
<P CLASS="Computer">
<A NAME="pgfId=119897">
 </A>
 1.37992E+02,1.92169E-001,4.68470E-001</P>
<P CLASS="Computer">
<A NAME="pgfId=119898">
 </A>
 1.89331E-01, 6.30898E-02,-6.38388E-02</P>
<P CLASS="Computer">
<A NAME="pgfId=119899">
 </A>
 1.31710E-02, 1.44096E-02, 6.92372E-04</P>
<P CLASS="Computer">
<A NAME="pgfId=119900">
 </A>
 6.57709E+00,-1.56096E+00, 1.13564E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119901">
 </A>
 4.68478E-05,-1.09352E-03,-1.53111E-04</P>
<P CLASS="Computer">
<A NAME="pgfId=119902">
 </A>
 7.76679E-04,-1.97213E-04,-1.12034E-03</P>
<P CLASS="Computer">
<A NAME="pgfId=119903">
 </A>
 8.71439E-03,-1.92306E-03, 1.86243E-03</P>
<P CLASS="Computer">
<A NAME="pgfId=119904">
 </A>
 5.98941E-04, 4.54922E-04, 3.11794E-04</P>
<P CLASS="Computer">
<A NAME="pgfId=119905">
 </A>
 1.49460E+02, 1.36152E+01, 3.55246E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119906">
 </A>
 6.37235E+00,-6.63305E-01, 2.25929E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119907">
 </A>
-1.21135E-02, 1.92973E+00, 1.00182E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119908">
 </A>
-1.16599E-03,-5.08278E-04, 9.56791E-04</P>
<P CLASS="Computer">
<A NAME="pgfId=119909">
 </A>
9.60000E-003, 2.70000E+01, 5.00000E+00</P>
<P CLASS="Computer">
<A NAME="pgfId=119910">
 </A>
4.18427E-010,4.18427E-010,4.33943E-010</P>
<P CLASS="Computer">
<A NAME="pgfId=119911">
 </A>
1.00000E+000,0.00000E+000,0.00000E+000</P>
<P CLASS="Computer">
<A NAME="pgfId=119912">
 </A>
1.00000E+000,0.00000E+000,0.00000E+000</P>
<P CLASS="Computer">
<A NAME="pgfId=119913">
 </A>
0.00000E+000,0.00000E+000,0.00000E+000</P>
<P CLASS="Computer">
<A NAME="pgfId=119914">
 </A>
0.00000E+000,0.00000E+000,0.00000E+000</P>
<P CLASS="Computer">
<A NAME="pgfId=119915">
 </A>
*P+ diffusion:: </P>
<P CLASS="Computer">
<A NAME="pgfId=119916">
 </A>
2, 9.4529e-04, 2.4583e-10, 1e-08, 0.85</P>
<P CLASS="Computer">
<A NAME="pgfId=119917">
 </A>
0.85, 0.439735, 0.237251, 0, 0</P>
</TD>
</TR>
</TABLE>
<P CLASS="ExerciseHead">
<A NAME="pgfId=112808">
 </A>
13.31&nbsp;(**Nonreciprocal capacitance, 120  min.)</P>
<UL>
<LI CLASS="ExercisePartFirst">
<A NAME="pgfId=112843">
 </A>
a.&nbsp;Starting from the equation for transient current flowing into the gate,  </LI>
<TABLE>
<TR>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnRight">
<A NAME="pgfId=129223">
 </A>
<SUB CLASS="SubscriptVariable">
</SUB>
&nbsp;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129225">
 </A>
&nbsp;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129227">
 </A>
&#8706;<SPAN CLASS="EquationVariables">
Q</SPAN>
<SUB CLASS="SubscriptVariable">
G</SUB>
</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129229">
 </A>
d<SPAN CLASS="EquationVariables">
V</SPAN>
<SUB CLASS="SubscriptVariable">
D</SUB>
</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129231">
 </A>
&nbsp;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129233">
 </A>
&#8706;<SPAN CLASS="EquationVariables">
Q</SPAN>
<SUB CLASS="SubscriptVariable">
G</SUB>
</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129235">
 </A>
d<SPAN CLASS="EquationVariables">
V</SPAN>
<SUB CLASS="SubscriptVariable">
G</SUB>
</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnLeft">
<A NAME="pgfId=129237">
 </A>
&nbsp;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqn">
<A NAME="pgfId=129239">
 </A>
&nbsp;</P>
</TD>
</TR>
<TR>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnRight">
<A NAME="pgfId=129241">
 </A>
<SPAN CLASS="EquationVariables">
i</SPAN>
<SUB CLASS="SubscriptVariable">
G</SUB>
</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129243">
 </A>
=</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129245">
 </A>
&#8211;&#8211;&#8211;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129247">
 </A>
&#8211;&#8211;&#8211;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129249">
 </A>
+</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129251">
 </A>
&#8211;&#8211;&#8211;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129253">
 </A>
&#8211;&#8211;&#8211;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnLeft">
<A NAME="pgfId=129255">
 </A>
&nbsp;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqn">
<A NAME="pgfId=129257">
 </A>
&nbsp;</P>
</TD>
</TR>
<TR>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnRight">
<A NAME="pgfId=129259">
 </A>
&nbsp;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129261">
 </A>
&nbsp;</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129263">
 </A>
&#8706;<SPAN CLASS="EquationVariables">
V</SPAN>
<SUB CLASS="SubscriptVariable">
D</SUB>
</P>
</TD>
<TD ROWSPAN="1" COLSPAN="1">
<P CLASS="TableEqnCenter">
<A NAME="pgfId=129265">
 </A>
d<SPAN CLASS="EquationVariables">
t</SPAN>
</P>
</TD>
<TD R