Abstract: An apparatus is described for burn-in and/or functional testing of microelectronic circuits of unsingulated wafers. A large number of power, ground, and signal connections can be made to a large number of contacts on a wafer. The apparatus has a cartridge that allows for fanning-in of electric paths. A distribution board has a plurality of interfaces that are strategically positioned to provide a dense configuration. The interfaces are connected through flexible attachments to an array of first connector modules. Each one of the first connector modules can be independently connected to a respective one of a plurality of second connector modules, thereby reducing stresses on a frame of the apparatus. Further features include for example a piston that allows for tight control of forces exerted by terminals onto contacts of a wafer.

Abstract: Pre-configuration of a programmable device permits implementation and operation of the device using a first, dedicated operation usable upon power up of the programmable device without the need for programming the device using external configuration data. Configuration data can be provided in any suitable manner to re-configure the device to perform a second, programmable operation. The pre-configured design preferably uses programmable resources and leaves dedicated resources undisturbed during both first and second operations.

Abstract: Pre-configuration of a programmable device permits implementation and operation of the device using a first, dedicated operation usable upon power up of the programmable device without the need for programming the device using external configuration data. Configuration data can be provided in any suitable manner to re-configure the device to perform a second, programmable operation. The pre-configured design preferably uses programmable resources and leaves dedicated resources undisturbed during both first and second operations.

Abstract: A fence with hollow posts and rails uses a flexible plug that is placed in insect entry path blocking position by sliding the plug into a fence rail in a direction that is perpendicular to the longitudinal axis of the plug. A friction fit between shoulders on the plug and a rib and ledge inside of the rail is attained by the relative spacing of the shoulders to the spacing of the rib and ledge.