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.

Patent No.:

US 7541578 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 02, 2009

Filed:

Dec. 21, 2006
Applicant:

Kuo-yao Weng, Hsinchu, TW;

Inventor:

Kuo-Yao Weng, Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01L 3/02 (2006.01); H01J 49/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of manufacturing a microfluidic device is described. A substrate having at least one device thereon is provided, wherein the device includes at least one channel. Next, a region beside the channel is heated, and then the substrate is pulled to neck the region such that at least one capillary connecting with the channel is formed. The present invention also provides a microfluidic device including a substrate and at least one capillary. In particular, the substrate has at least one device thereon, and the device has at least one channel. The capillary is connected with the channel, wherein the substrate and the capillary are a unity structure such that the interface between the capillary and the channel is dead-volume free.


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