Protective caps for small image sensor masking and mounting process

An image sensor system, comprising:

• an image sensor comprising a lens structure, a silicon structure, and solder members;
• a permanent mount that is electrically coupled to the solder members;
• wherein the lens structure includes an uncoated top portion and a bottom portion that is coated with a dark coating agent
• wherein the silicon structure is configured to convert photons to charge carriers, and to produce image signals;
• and
• a sheath that covers at least the uncoated top portion.

A method of processing an image sensor system, comprising steps of:

• (a) placing a cover member on top of an image sensor, wherein the image sensor includes a first portion that is not coated with the dark coating agent, and a second portion that is coated with the dark coating agent;
• (b) affixing the image sensor on to a permanent mount to form an electrical coupling between the image sensor and the permanent mount;
• (c) removing the second cover member from the image sensor;
• wherein the cover member includes an internal rib configured to form a contact seal with the image sensor.