Abstract: Described is a semiconductor substrate stack, including: a plurality of semiconductor substrates arranged in a stack in which the semiconductor substrates include opposing facing surfaces, wherein the facing surfaces of adjacent semiconductor substrates are separated by a gap, each semiconductor substrate having an edge surface at an exposed edge of the stack. A spacer is attached to one of the facing surfaces of each of the at least one of the semiconductor substrates and extends between adjacent semiconductor substrates to define the gap and mask a central portion of each respective semiconductor substrate.

Abstract: Described is a semiconductor substrate stack, comprising: a plurality of semiconductor substrates arranged in a stack in which the semiconductor substrates include opposing facing surfaces, wherein the facing surfaces of adjacent semiconductor substrates are separated by a gap, each semiconductor substrate having an edge surface at an exposed edge of the stack. A spacer is attached to one of the facing surfaces of each of the at least one of the semiconductor substrates and extends between adjacent semiconductor substrates to define the gap and mask a central portion of each respective semiconductor substrate.

Abstract: A clock having an hour housing supporting an integral hour hand and a minute housing supporting an integral minute hand along with a timing mechanism supported within the hour housing and having hour and minute driven shafts coupling to the respective hour and minute housings. There is provided a logo disk at the front of the clock which is maintained in a stationery position relative to the adjacent rotating minute housing. A support bracket is used for supporting the timing mechanism from a wall or the like.

Abstract: A clock having an hour housing supporting an hour hand integral therewith in a minute housing supporting a minute hand integral therewith. A battery operated timing mechanism in the hour housing has an hour shaft for driving the hour housing in hand and a minute shaft for driving the minute housing in hand. The coupling of the minute shaft includes a threaded shaft end having opposed flats adapted to force-fit in a centrally disposed hole on the inside of the minute housing. A bracket is provided for supporting the timing mechanism in a fixed position such as from a wall.