(NYSE: BWXT), we are People Strong, Innovation Driven. Barberton CNC HBM Operator - OH, 44203.Complete the job application for Manual HBM Machinists in Akron, OH online today or find more job listings available at Professional Placement Services at Monster.HBM uses TSVs and μbumps to achieve a 3-D format. Package options for HBM plus logic include silicon interposers, fan-out on substrate using a redistribution layer, and many bridge solutions.