Patent ID: 11898554
Assignee: MICROJET TECHNOLOGY CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC F  B | IPC B  F

Claim 6:
7. The filtration and purification processing method according to claim 1, wherein the at least one flow-guiding unit is a microelectromechanical systems (MEMS) blower-type pump, and the MEMS blower-type pump comprises:
an outlet base formed with a penetration hole and a compression chamber through a silicon substrate etching process, wherein a penetration hole is in communication between the compression chamber;
a first oxide layer formed and stacked on the outlet base by deposition, wherein a portion of the first oxide layer corresponding to the compression chamber is removed by etching;
a nozzle resonance layer formed and stacked on the first oxide layer by deposition, wherein a plurality of inlet holes is formed at a portion of the nozzle resonance layer corresponding to the compression chamber by partially etching, and wherein a portion of the nozzle resonance layer corresponding to a central portion of the compression chamber is etched to form a nozzle hole, thereby forming a suspension area capable of being vibrated between the plurality of inlet holes and the nozzle hole;
a second oxide layer formed and stacked on the suspension area of the nozzle resonance layer by deposition, wherein a portion of the second oxide layer is etched to form a resonance chamber area in communication with the nozzle hole;
a resonance chamber layer formed on the resonance chamber layer by a silicon substrate etching process is correspondingly stacked on and bonded to the second oxide layer, so that the resonance chamber is corresponding to the resonance chamber area of the second oxide layer;
a first piezoelectric component formed and stacked on the resonance chamber layer by deposition, wherein the first piezoelectric component comprises a first lower electrode layer, a first piezoelectric layer, a first insulation layer, and a first upper electrode layer, wherein the first lower electrode layer is formed and stacked on the resonance chamber layer by deposition, the first piezoelectric layer is formed and stacked on a portion of a surface of the first lower electrode layer by deposition, and the first insulation layer is formed and stacked on a portion of a surface of the first piezoelectric layer by deposition, and wherein the first upper electrode layer is formed and stacked on the surface of the first insulation layer and the remaining portion of the surface of the first piezoelectric layer which is not covered by the first insulation layer for being electrically connected to the first piezoelectric layer; and
wherein the first piezoelectric component is capable of driving the nozzle resonance layer to resonate with the first piezoelectric component, and thus the suspension area of the nozzle resonance layer vibrates in a reciprocating manner, and then draws the gas outside the first actuator into the compression chamber through the plurality of inlet holes, the gas is further directed to the resonance chamber through the nozzle hole, passes through the penetration hole, and discharged out from the blower-type micro pump with a higher pressure, thereby achieving transmission of the gas.