A method is used in processing data storage system configuration information. The device further includes a UV barrier layer formed over the lightly doped region. At least one second governor specifies a second manipulated variable based on a comparison between a second setpoint value and the actual value. Thus, impurities remaining in the dielectric layer can be effectively removed, and the dielectric layer can be densified. The image matching tool matches image content of an input image against each retrieved image in the relational database table on a line-by-line basis from top to bottom within the same image number and component number.