In this paper, we fabricate arrayed-type flexible capacitive touch sensor using liquid metal (LM) droplets (4 mm spatial resolution). Poly-4-vinylphenol (PVP) layer is used as a dielectric layer on the electrode patterned Polyethylene naphthalate (PEN) film. Bonding tests between hydroxyl group (-OH) on the PVP film and polydimethylsiloxane (PDMS) are conducted in a various O2 plasma treatment conditions. Through the tests, we can confirm that non-O2 plasma treated PVP layer and O2 plasma treated PDMS can make a chemical bond. To measure dynamic range of the device, one-cell experiments are conducted and we confirmed that the fabricated device has a large dynamic range (~60 pF).

1. 서 론
 2. 센서 구조 및 측정 원리
 3. 실험 및 결과
  3.1 디바이스 제작
  3.2 실험 셋업
  3.3 다이내믹 레인지 & 이력현상 테스트 결과
 4. 결 론
 References

• 원동준(Mechanical Engineering, Pohang University of Science and Technology) | Dong-Joon Won
• 허명(Mechanical Engineering, Pohang University of Science and Technology) | Myoung Huh
• 김준원(Mechanical Engineering, Pohang University of Science and Technology) | Joonwon Kim Corresponding Author