Technology · Photonics, MEMS & Sensors
DTI (Deep Trench Isolation)
Narrow etched trenches filled with oxide or metal between pixels, forming an optical and electrical barrier that stops photons and carriers leaking into neighbouring pixels.
- Also known as
- BDTI, Backside deep trench isolation, FDTI
- Type
- Technology
- Domain
- Photonics, MEMS & Sensors, Image sensors
Notes
Without DTI, backside illuminated sensors with small pixels suffer unacceptable colour crosstalk.
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