NDLI: Visualization of bubbles generated by microheaters with various current density distributions

Content Provider	IEEE Xplore Digital Library
Author	Ji-Hyuk Lim Yong-Soo Lee Hyung-Taek Lim Seog-Soon Baek Keon Kuk Yong-Soo Oh
Copyright Year	2003
Description	Author affiliation: MEMS Lab., Samsung Adv. Inst. of Technol., Gyeonggi, South Korea (Ji-Hyuk Lim; Yong-Soo Lee; Hyung-Taek Lim; Seog-Soon Baek; Keon Kuk; Yong-Soo Oh)
Abstract	This work presents an experimental study to analyze the performance of thermal actuators to generate bubbles. The heaters are designed to have different current density distributions based on numerical analysis. The bubbles generated by heaters are compared to each other by visualization techniques. It is shown that the geometries and driving conditions of the heater strongly affect the bubble behaviors. The geometries like arc or trapezoid-shape induce nonuniform current densities and therefore change the driving conditions for generating bubbles. The experimental result reveals that the proper considerations on heater geometry are required to use the heater as a thermal actuator.
Starting Page	197
Ending Page	200
File Size	265187
Page Count	4
File Format	PDF
ISBN	0780377443
ISSN	10846999
DOI	10.1109/MEMSYS.2003.1189720
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-01-23
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Visualization Current density Actuators Micromechanical devices Geometry Numerical analysis Temperature Printers Ink Heat transfer
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Mechanical Engineering Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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