Abstract: A multi-stage interconnection network includes the use of switches in the first stage that have parallel path seeking capabilities. With these switches, a directed flash-flood can be instigated from any one node wherein multiple paths through the network to a designated destination node are tried in parallel in an attempt to find a connection path therebetween. The switches in the first and second stages are interconnected such that each switch in the first stage is connected with every possible priority level to the switches of the second stage. The parallel path seeking switches and network are further configured to test for rejection of the flash-flood by monitoring all connections in combination.

Abstract: Disclosed is a method for encapsulating selected areas of solid state integrated circuits. The areas which are to remain uncoated are covered with a water and/or alcohol soluble polymer of sufficient viscosity to form stable droplets. The encapsulant is then applied, usually by flow coating, and cured. The polymer mask is removed by applying a material such as water or alcohol which does not affect the encapsulant. The method thus allows relatively small areas to be masked without any significant residue left on the circuit.