Title page for etd-0803117-212649


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URN etd-0803117-212649
Author Wei-Sin Kao
Author's Email Address No Public.
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Department Mechanical and Electro-Mechanical Engineering
Year 2016
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Temperature, Ionic Strength and pH Detections Utilizing Industrial PET Touch Panel Film and Its Manufacturing Process
Date of Defense 2017-07-26
Page Count 76
Keyword
  • ISFET
  • pH meter
  • ion conductivity
  • touch panel film
  • temperature sensor
  • Abstract This thesis present the fast multiple pH, temperature and conductivity sensors utilizing full ITO as the sensing materials. Instead of wet chemical etching, CO2 laser was used to direct ablate the PET layer of the touch panel film (TPF) and defined the pattern of the sensing electrodes. The energetic laser spots ablate the PET layer such that the electrical insulation could be achieved without using wet chemical etching. Laser machining improve stability and insulation for the sensing electrodes for the sensing chip even more the time for the process can be faster. Therefore, the full ITO-based electrodes for temperature, pH and ionic strength can be easily produced and low-cost. In the pH sensing structure, the commercial CMOS IC is used and replaced the extending gate field effect transistor in the previous research to improve stable and high-sensitivity measurement. In addition, the commercial meter was used for measuring the properties of temperature and conductivity sensors. Six pin Flexible Printed Circuit(FPC) slot with three-dimensional structure to make better connect between chip and circuit. As the results, the minimize ITO multi-sensor exhibits great sensing performance for detecting temperature (2 Ω/ oC), pH value (pH3 - pH13 with rapid response time <1 S, low sensing area effect < 8% between 19.5-52.0 mm2 and effect of the flow rate is less than 4%), and nice distinction for different water conductivity. The results for 20 chips in different pH solution testing is below 7%. Finally, 10 urine samples from 9 students showed the strong connection between meals and urine. The full ITO multi-sensor has shown its potential for developing disposable water and urine sensors. It is also a good candidate to develop disposable and physiological sensor.
    Advisory Committee
  • Wei-Lung,Tseng - chair
  • Shin-Pon,Ju - co-chair
  • Chia-Yen,Lee - co-chair
  • Wen-Cheng,Kuo - co-chair
  • Che-Hsin,Lin - advisor
  • Files
  • etd-0803117-212649.pdf
  • Indicate in-campus at 99 year and off-campus access at 99 year.
    Date of Submission 2017-09-04

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