Abstract

This paper presents the design and fabrication of a low-cost series microheater which works on the principle of Joule heating. The conducting silver-ink (LOCTITE ECI 1010 E & C) and polyethylene terephthalate (PET) sheet are used as a resistive material for the heating circuit and the substrate respectively. The poor thermal conductivity and high electrical resistivity of the PET sheet are advantageous in achieving the excellent heat confinement. Conventional screen printing is used to fabricate the microheater. Screen printing offers high yield with low turnaround time and fabrication can be done with minimum facilities. The maximum operating temperature of microheater is 100 C , and it may have promising application in the bio-medical analysis. To improve the thermal uniformity, a 100 μm thick glass coverslip is glued on the heater surface. The influence of supply voltage and time on heater temperature profile is predicted using commercial FEM simulation tool—COMSOL Multiphysics. There is good agreement between the measured and simulation results.

Original languageEnglish
Pages (from-to)3273-3281
Number of pages9
JournalMicrosystem Technologies
Volume24
Issue number8
DOIs
Publication statusPublished - 01-08-2018

Fingerprint

Polyethylene Terephthalates
Screen printing
polyethylene terephthalate
heaters
printing
Polyethylene terephthalates
Fabrication
Turnaround time
fabrication
Joule heating
inks
operating temperature
Silver
Ink
temperature profiles
Thermal conductivity
thermal conductivity
simulation
silver
Finite element method

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

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abstract = "This paper presents the design and fabrication of a low-cost series microheater which works on the principle of Joule heating. The conducting silver-ink (LOCTITE ECI 1010 E & C) and polyethylene terephthalate (PET) sheet are used as a resistive material for the heating circuit and the substrate respectively. The poor thermal conductivity and high electrical resistivity of the PET sheet are advantageous in achieving the excellent heat confinement. Conventional screen printing is used to fabricate the microheater. Screen printing offers high yield with low turnaround time and fabrication can be done with minimum facilities. The maximum operating temperature of microheater is 100 ∘C , and it may have promising application in the bio-medical analysis. To improve the thermal uniformity, a 100 μm thick glass coverslip is glued on the heater surface. The influence of supply voltage and time on heater temperature profile is predicted using commercial FEM simulation tool—COMSOL Multiphysics. There is good agreement between the measured and simulation results.",
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Design and fabrication of screen printed microheater. / Tiwari, Shailendra Kumar; Bhat, Somashekara; Mahato, Krishna K.

In: Microsystem Technologies, Vol. 24, No. 8, 01.08.2018, p. 3273-3281.

Research output: Contribution to journalArticle

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