Sir/Ma'am,
I am new to cadence and PCB design software so please bear with me if this is something simple.
How do I get rid of the following errors:
**** EXPANSION OF SUBCIRCUIT X_D35 ****
X_D35.D1 N17008 N02077 X_D35.default
.model X_D35.default diode
---------------------$
ERROR -- Invalid model type
**** EXPANSION OF SUBCIRCUIT X_D37 ****
X_D37.D1 N17008 N02895 X_D37.default
.model X_D37.default diode
---------------------$
ERROR -- Invalid model type
**** EXPANSION OF SUBCIRCUIT X_D40 ****
X_D40.D1 N02882 N17184 X_D40.default
.model X_D40.default diode
---------------------$
ERROR -- Invalid model type
**** EXPANSION OF SUBCIRCUIT X_D42 ****
X_D42.D1 N02872 N17184 X_D42.default
.model X_D42.default diode
---------------------$
ERROR -- Invalid model type
ERROR -- Model default used by X_D35.D1 is undefined
ERROR -- Model default used by X_D37.D1 is undefined
ERROR -- Model default used by X_D40.D1 is undefined
ERROR -- Model default used by X_D42.D1 is undefined
I got a spice model for the diode in question from the company's website and ran it through model editor to change the voltage values to match the diode I specifically needed. (the spice file they had online was a "cure-all" for a number of diodes and had the values of a 'weaker' diode). I also changed it so I only had 2 pins (anode and cathode) in the model editor text file. I then output a .olb file and changed the shape of it in the designer. Then added the library file to my design to add the model. I did change the shape to resemble a zener diode. I deleted the "area and 't'" values because I only want 1 input and 1 output. I also edited my simulation settings>configuration files to include the .lib file to the profile.
This is the ORIGINAL text file:
.SUBCKT SMAJ4739A J S area=1 t=25
D1 J S default area=area t=t
.model default diode level = 1
+ IS=5p
+ N=1.0
+ RS=0
+ EG=.70
+ CJO=900p
+ M=.50
+ VJ=1.0
+ IBV=0.028
+ BV=9.0
+ TT=270n
.ENDS SMAJ4739A
This is what I changed it to:
.SUBCKT SMAJ4744A J S
D1 J S
.model default diode level = 1
+ IS=5p
+ N=1.0
+ RS=0
+ EG=.70
+ CJO=900p
+ M=.50
+ VJ=1.0
+ IBV=0.028
+ BV=15.0
+ TT=270n
.ENDS SMAJ4744A
I have tried looking for solutions but can't seem to get anywhere. Any advice/ideas are greatly appreciated.
Thank-you in advance.