Method and apparatus for MEMS device nebulizer lubrication...

Details Method and apparatus for MEMS device nebulizer lubrication... Method and apparatus for MEMS device nebulizer lubrication...

2007-09-04

2007-09-04

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

C239S419000, C239S427000, C239S427300, C239S434000, C239S434500, C239S366000

Reexamination Certificate

active

11096479

ABSTRACT:
A nebulization system, which creates a uniform fog of tiny suspended liquid droplets, to lubricate the surfaces of MEMS devices. These droplets fall over the edge of a baffle and are then mixed with an umbrella-like sheet of N2turbulation gas to generate a uniform cloud of droplets that fill a passivation chamber. The MEMS device is then positioned in this uniform cloud of lubricant droplets for a specified amount of time, thereby uniformly lubricating all the surfaces of the device. The system uses a laser monitoring approach to control the uniformity of the lubricant cloud by providing feedback to the system to control the flow of gases. The system also equalizes the pressure around the sample device seal to prevent gases from entering or exiting the chamber and thereby influencing the environment inside the chamber.

REFERENCES:
patent: 5331454 (1994-07-01), Hornbeck
patent: 6045056 (2000-04-01), Tardoni
patent: 6221435 (2001-04-01), Nielsen
patent: 6300294 (2001-10-01), Robbins et al.
patent: 6475570 (2002-11-01), Jacobs
patent: 6806993 (2004-10-01), Adams et al.

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