An integrated circuit arrangement contains an insulating region, which is part of a planar insulating layer, and a capacitor which contains: near and far electrode regions near and remote from the insulating region and a dielectric region. When the firewall determines that a particular network connection has been idle for a predetermined period of time, the firewall does not automatically delete the connection’s state from its database. Each vacuum zone defines a recess in the upper surface of the platen that is fluidly coupled to the vacuum source through a port.