Taiwan Semiconductor Manufacturing manufactures semiconductors using its manufacturing processes for its customers based on proprietary integrated circuit designs provided by them. Co. provides a range of wafer fabrication processes, including processes to manufacture complementary metal oxide silicon (CMOS) logic, mixed-signal, radio frequency, embedded memory, bipolar complementary metal oxide silicon, which uses CMOS transistors in conjunction with bipolar junction transistor) mixed-signal and other semiconductors. Co. also provides design, mask making, TSMC 3DFabric™ advanced 3D chip stacking and packaging, and testing services.