EMMC temp drift Was: Bipolar Coil

>I did a little experiment.  I measured my EMMC at 27.7nF at the room 
>temperature of 19.7 degrees C.  Then I took it outside and let it cool down 
>to arctic Colorado temperatures of 13.2C (it was 17C here on Christmas day, 
>Santa needed a short sleeve shirt ;-))  The capacitance still measured 
>27.7nF.  I have it in the refrigerator now...
>	Terry

At 4.8 Degrees C, my EMMC cap measures 27.8nF.  So that's very roughly
240ppm (0.024%) per degree C shift in value.  The poly caps appear to be
very stable temperature wise...