A method for producing a porous cross-linked polymer sheet capable of slicing quickly is provided. The first electronic device includes a first projecting member and a pair of first contact portions disposed on the first projecting member. The Z base is provided with the chuck top and is vertically movable. The predicted active speaker buffers maintain a collection of the most recent x packets or m milliseconds of non-active speaker audio data, and transfer a portion of the data from the predicted active speaker buffers to the active speaker buffers as speakers become active speakers. By utilizing an interconnect metallization material that is the same or similar to the material used to sense hydrogen, or that is capable of withstanding an etchant used to pattern a hydrogen sensing portion, device yields are improved over prior techniques.