- High throughput
Indium Corporation’s OnSpec CIG alloy sputtering targets, made from copper (Cu), indium (In), and gallium (Ga), are used to produce high-effi ciency CIGS (Cu/In/Ga/di-selenide) solar cells. CIG targets offer tight control of the fi nal solar cell composition. This is due to our unique process that results in a fully alloyed and completely homogenous CIG alloy as evidenced by the illustration on the back. OnSpec CIG Alloy Targets have very low levels of impurities, which enable the manufacture of high effi ciency solar cells. This is because we can control the impurity levels before and during our manufacturing process. Targets can be used in reactive or non-reactive modes. Using fully-alloyed targets with various Cu/III and Ga/III ratios enable grading of the deposited CIG chemical composition. This replicates the process used for manufacturing high-effi ciency solar cells.