Abstract:
The present disclosure provides a semiconductor structure. The structure includes a first substrate; a first dielectric layer having a first surface in proximity to the first substrate and a second surface away from the first substrate; a first interconnect penetrating the first surface of the first dielectric layer; and a protection layer extending along a portion of a sidewall of the first interconnect. A thickness of the protection layer is in a range of from about 0.02 μm to about 0.2 μm.
Abstract:
The present disclosure provides a method for manufacturing a semiconductor isolation structure, including providing a substrate with a top surface; forming a patterned mask over the top surface; forming a trench through the patterned mask in the substrate by a directional etch comprising nitrogen-containing substance, wherein an aspect ratio of the trench is formed to be greater than about 18, and a ratio of a width of a narrowest portion and a width of a widest portion of the isolation region is formed to be greater than about 0.7; and filling the trench with insulating materials. The present disclosure also provides an image sensing device, including a radiation sensing region with a first isolation region separating adjacent radiation detecting units and a peripheral region, wherein an aspect ratio of the first isolation region is greater than about 18.