High-Resolution Spectral Domain OCT

Superior depth Resolution

Energetiq’s High Resolution Spectral Domain OCT (HR SD-OCT) technology uses shorter wavelengths over a broader wavelength range to offer higher depth measurement resolution than traditional OCT. The HR SD-OCT system includes a patented all-reflective, self-referenced architecture, designed for robust performance in the production environment.

Detection of subsurface defects in semiconductor and optical materials

HR SD-OCT is still in development, but a prototype system has demonstrated high-resolution detection and measurement of subsurface defects in glass substrates, adjacent to through-glass vias (TGVs), in high bandwidth semiconductor materials, and in optical lenses.

Increased yield and improved reliability

The types of defects identified by HR SD-OCT are associated with reduced manufacturing yield and shortened product life. Identification of these defects early in the manufacturing process reduces costs and enables process development by linking specific defect types to failures during production and reliability issues in finished products.

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glass substrate tgv

High-resolution SD-OCT: principle of operation

The HR SD-OCT demonstration system brings together a high-brightness light source, patented optical head, high-speed spectrometer, and imaging software for subsurface inspection.

HR SD-OCT principle of operation

Depth-resolved defect detection

This shows a cross-section view showing a defect.

Depth-resolved defect detection using sequential A scans

Subsurface defect detection

This shows a top-down view showing a defect.

Subsurface Inspection of Glass Substractes iwth Copper Filled Vias 

Discuss your subsurface inspection requirements

Energetiq’s high-resolution SD-OCT system is currently in development. Connect with our technical team to discuss your inspection requirements and learn more about the developing technology.

Contact us to discuss your application or inquire about a demonstration.

Contact our team