The trick with capacitors such as these is that you are talking 1nm spacing between the layers. It doesn't take much to punch through a layer, and if that relea

The trick with capacitors such as these is that you are talking 1nm spacing between the layers. It doesn't take much to punch through a layer, and if that releases enough energy to get through the next, then you might have an exciting day. The thinnest metalized, plastic film capacitors have a plastic film 600nm thick.¹ ␄ ¹ https://en.wikipedia.org/wiki/Film_capacitor https://en.wikipedia.org/wiki/Film_capacitor wherein you will also learn that the process of making the ends of the metalized plastic conductive by a "schoopage" process, named after Max Schoop who invented combustion spray method for the application of tin and lead. And now I am lost down the internet wormhole, "Detonation thermal spraying" is a thing! Explode your contacts into place!