| CPC C23C 16/48 (2013.01) [C23C 16/4405 (2013.01); C23C 16/45553 (2013.01); C23C 16/4583 (2013.01)] | 20 Claims |

|
1. A reaction chamber comprising:
a rack configured to hold a plurality of substrates, wherein the plurality of substrates are aligned vertically in the rack;
an illumination system configured to produce ultraviolet radiation within a range from 100 to 500 nanometers, wherein the illumination system is constructed and arranged to irradiate ultraviolet radiation onto a top surface of each of the plurality of substrates in the rack in the reaction chamber, wherein the illumination system is configured such that the average direction of the ultraviolet radiation is at an angle in the range of 80 to 89.5 degrees with respect to a line perpendicular to the top surfaces of the plurality of substrates; and
a power controller configured to control the power of the illumination system, wherein the power controller is programmed to adjust a radiation output of the illumination system along a width of the rack.
|