Image-sensor structures

An image-sensor structure, comprising:

• a substrate;
• a plurality of photoelectric conversion units formed in the substrate;
• a plurality of color filter patterns formed above the substrate and the photoelectric conversion units, wherein the color filter patterns are divided into a first unit comprising two green filters, a second unit comprising two green filters, a third unit comprising one blue filter and one red filter, and a fourth unit comprising one blue filter and one red filter, wherein the first unit is adjacent to the second unit along a horizontal direction or along a diagonal direction;
• and
• a plurality of microlenses formed above the color filter patterns, wherein the microlenses are divided into a first microlens unit comprising one microlens covering the two green filters of the first unit, a second microlens unit comprising one microlens covering the two green filters of the second unit, a third microlens unit comprising two microlenses respectively covering the one blue filter and the one red filter of the third unit, and a fourth microlens unit comprising two microlenses respectively covering the one blue filter and the one red filter of the fourth unit.

An image-sensor structure, comprising:

• a substrate;
• a plurality of photoelectric conversion units formed in the substrate;
• a plurality of color filter patterns formed above the substrate and the photoelectric conversion units, wherein the color filter patterns are divided into a first unit comprising one green filter and a metal pattern adjacent to the one green filter, a second unit comprising one green filter and a metal pattern adjacent to the one green filter, a third unit comprising one blue filter or one red filter, and a fourth unit comprising one blue filter or one red filter, wherein the first unit is adjacent to the second unit along a horizontal direction;
• and
• a plurality of microlenses formed above the color filter patterns, wherein the microlenses are divided into a first microlens unit comprising one microlens covering the one green filter of the first unit and the one green filter of the second unit, a second microlens unit comprising one microlens covering the one blue filter or the one red filter of the third unit, and a third microlens unit comprising one microlens covering the one blue filter or the one red filter of the fourth unit.