A layer structure for producing a planar insulation laminate, including the following sequence of planar individual layers arranged one on the other: a B-stage resin, a glass fabric, a core layer made of polyester film, a glass fabric, and a B-stage resin. The system includes a plurality of variable light sources that can project light onto the surface of the web. Applications operating on the storage clients can conveniently access the information using IO interface commands and need not have access to some or all of the software or functionality that virtualizes the storage. The retaining device is sized so as to permit the passage of the body but not the head of a fastening device. A CMOS process with an epitaxial layer as bulk and p-type substrate is used to implement the circuit in this example. The interface between the oxide-containing member and the aluminum surface is heated with a laser.