Ultra-high resolution optical coherence tomography for encapsulation quality inspection

Yield and Electrical Functionality of the Glass-Laminated Conductive Wires and Connectors

“…Non-destructive structural characterization method, so called optical coherence tomography (OCT) was used in this study to evaluate structural changes caused by lamination and find reasons for the observed features of laminated electronics. OCT is widely used in (bio)medical measurements [18][19] but the same technology has been utilized also in industrial applications [17,[20][21][22][23][24][25][26][27] including the electronics quality inspection and reliability analysis [17,22]. Briefly described, OCT is a light-based imaging method in which backscattered intensity profiles are recorded and typically, by lateral scanning of a probing beam cross-sectional images are composed.…”

Optical Coherence Tomography – Applications in Non- Destructive Testing and Evaluation

“…Especially the group around Myllylä in Oulu, Finland, is heavily engaged in the application of OCT for NDT. Over the last years they have applied OCT for the characterization of paper [56][57][58][59], printed electronics circuits [19,60] and also used OCT as a method for the characterization of wettability [61].…”

Optical coherence tomography for glucose monitoring in blood

“…The tissue surface can be scanned by moving the light beam latterly on sample to achieve two-dimensional images with ultrahigh resolution [4]. In Doppler (D-OCT), the precision of the Doppler frequency due to speckle modulation for the flow velocity of the backscatterers spectrum in Brownian (collagen, myosin) [18], i.e., 18 mg/dl glucose affects ~20 % in the OCT signal [16,19].…”