Tong Hsing Electronics Philippines. Inc. is one of the top IC Hybrid assembly companies, specializing in the manufacture of ceramic assembly using thick film and DPC technology as well as other devices like PCB assembly with Surface Mount Technology (SMT) and Chip on Board (COB) processes, multi-chip modules, particularly RF modules, image products, and Land Grid Array (LGA) or Ball Grid Array (BGA) packages. There are different classes of clean rooms, including 10, 100, 1000, 10K, and 100K.