Abstract: A mask transmission equipment is provided. The mask transmission equipment includes a wafer transmission container and a supporting bracket. The wafer transmission container includes a plurality of first positioning grooves and a plurality of second positioning grooves. The first positioning grooves face the second positioning grooves. The first positioning grooves and the second positioning grooves are adapted to position a plurality of wafers. The supporting bracket is disposed in the wafer transmission container. The supporting bracket includes a first supporting unit, a second supporting unit, a first wing and a second wing. The first supporting unit is stacked on the second supporting unit. The first wing is disposed on a first side of the supporting bracket. The second wing is disposed on a second side of the supporting bracket. The first side is opposite to the second side.

Abstract: A mask transmission equipment is provided. The mask transmission equipment includes a wafer transmission container and a supporting bracket. The wafer transmission container includes a plurality of first positioning grooves and a plurality of second positioning grooves. The first positioning grooves face the second positioning grooves. The first positioning grooves and the second positioning grooves are adapted to position a plurality of wafers. The supporting bracket is disposed in the wafer transmission container. The supporting bracket includes a first supporting unit, a second supporting unit, a first wing and a second wing. The first supporting unit is stacked on the second supporting unit. The first wing is disposed on a first side of the supporting bracket. The second wing is disposed on a second side of the supporting bracket. The first side is opposite to the second side.

Abstract: A circuit capable of providing stable timing clock includes: a step-down clamping circuit, an oscillating circuit, and a voltage potential-conversing circuit. The step-down clamping circuit that step down the input first voltage potential, and clamp to output second voltage, the oscillating circuit is coupled to the clamping circuit and is an oscillating circuit that takes the second voltage as a operating voltage to generate a first timing clock signal, which has a lower voltage potential. The voltage potential-conversing circuit is coupled to the oscillating circuit to convert the first timing clock signal into a second timing clock signal, which has a higher voltage potential. And it is a stable timing clock signal available for other system circuit.

Abstract: A circuit capable of providing stable timing clock includes: a step-down clamping circuit, an oscillating circuit, and a voltage potential-conversing circuit. The step-down clamping circuit that step down the input first voltage potential, and clamp to output second voltage, the oscillating circuit is coupled to the clamping circuit and is an oscillating circuit that takes the second voltage as a operating voltage to generate a first timing clock signal, which has a lower voltage potential. The voltage potential-conversing circuit is coupled to the oscillating circuit to convert the first timing clock signal into a second timing clock signal, which has a higher voltage potential. And it is a stable timing clock signal available for other system circuit.