In stunning of slaughter animals by means of a box stunning apparatus with stunning atmosphere, boxes are conveyed around after one another to various stop positions by means of a transport system. In one embodiment, a gaming machine for playing a wagering game is presented. In addition, support is offered for the separation of operational concerns from business logic, allowing developers to control the operational aspects from a policy manager of the IDE user interface. For three different gate oxide thicknesses, selected second oxide growth regions are nitridated with a N2 plasma which increases the dielectric constant of a gate oxide and reduces the effective oxide thickness. A variety of device heads is suspended and lowered in the air space through the guide pipe, and mounted to the holding member of the mounting fixture.