A product-spreading hood assembly for use with a die unit includes a deflector having wall structure defining a product inlet opening and a product outlet opening ; the deflector is preferably generally frustoconical in shape and is supported by a housing. To increase the aspect ratio of the trenches, an additional layer is deposited on the side walls of the trenches in at least some sections, but not on the exposed surface regions of the sacrificial layer. Switching of connection of the measurement bus net with a measurement terminal pad is electrically controlled properly by X, Y address selection signals outputted from X, Y address decoders to X, Y address selection signal lines.