The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 09, 2005

Filed:

Jun. 24, 2003
Applicants:

Jinn-cherng Yang, Hsinchu Hsien, TW;

Ching-yi Mao, Hsinchu Hsien, TW;

Chou-lin Wu, Hsinchu Hsien, TW;

Inventors:

Jinn-Cherng Yang, Hsinchu Hsien, TW;

Ching-Yi Mao, Hsinchu Hsien, TW;

Chou-Lin Wu, Hsinchu Hsien, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J002/05 ;
U.S. Cl.
CPC ...
Abstract

A micro fluidic module having at least a micro fluid channel barrier comprises at least an actuator, a firing chamber, a plurality of convergent fluid outlet channel and a plurality of convergent fluid inlet channel. The actuator (e.g. a heater) boils the working fluid and generates thermal bubble and instant high pressure to eject the working fluid outside and expel the working fluid through the fluid outlet channel. Then, the working fluid refills from the fluid inlet channel. Therefore, the working fluid flows consistently through the firing chamber. The working fluid flowing through adjacent firing chambers are arranged in different or consistent directions. Therefore, the refilling speed of the working fluid is increased, and the operating frequency of the module is improved.


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