Electromagnetically actuated FR4 scanners


Urey H., Holmstrom S., YALÇINKAYA A. D.

IEEE Photonics Technology Letters, cilt.20, sa.1, ss.30-32, 2008 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Sayı: 1
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1109/lpt.2007.911522
  • Dergi Adı: IEEE Photonics Technology Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.30-32
  • Anahtar Kelimeler: Actuators, Fire resistant 4 (fr4), Optical microelectromechanical systems (mems), Scanners
  • Boğaziçi Üniversitesi Adresli: Evet

Özet

A torsional micromechanical scanner is fabricated from thin Fire Resistant 4 substrates using standard printed circuit board technology. The top and the bottom copper layers are connected with vias and shaped as a single coll to enable one- and two-dimensional electromagnetic actuation with an external magnet. Using 5 mm × 5 mm mirrors, the following scan angle and resonant frequency combinations are achieved: 17° at 1.8 kHz and 140° at 417 Hz. Another 10× improvement in magnetic actuation torque seems feasible. The technology offers a unique advantage by allowing a high degree of integration with microoptics and electronics directly on the mechanical platform and offers a low-cost alternative to silicon microelectromechanical systems devices particularly when large or low-frequency devices are required. © 2007 IEEE.