Optical Microsensors Integration Technologies for Biomedical Applications

Eiji HIGURASHI  Renshi SAWADA  Tadatomo SUGA  

IEICE TRANSACTIONS on Electronics   Vol.E92-C   No.2   pp.231-238
Publication Date: 2009/02/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E92.C.231
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Section on Recent Advances in Integrated Photonic Devices)
microsensors,  hybrid integration,  passive alignment,  low temperature bonding,  laser Doppler flowmetry,  

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This paper focuses on optical integration technology and its application in optical microsensors used in biomedical fields. The integration is based on the hybrid integration approach, achieving high performance, small size and weight, and lower cost. First, we describe the key technologies used in hybrid integration, namely passive alignment technology, low temperature bonding technology, and packaging technology for realizing advanced microsensors. Then, we describe an integrated laser Doppler flowmeter that can monitor blood flow in human skin.