On 08/08/2016 12:51 PM, Eric Smith wrote:
  From a photomicrograph of the FDC9216 I've
discerned that the PLA
 contents in the production part don't exactly match the patent. 
"... includes a logic function array which implements a predetermined
algorithm".
Ah, yes, the magic in the mixture.  Thanks for the link to the patent.
--Chuck