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PolarFab offers a one-time programmable (OTP) antifuse for PBC4, its 0.5 μm BCD (bipolar-CMOS-DMOS) process. The antifuse is a non-volatile memory element that requires no additional mask layers, allowing for a cost-effective post-package or wafer-level trim capability. The antifuse hard macro is organized in an 8-bit (1 B) block, where each individual bit may be selected for programming. In addition, multiple antifuse blocks can be implemented in a single design yielding a greater number of trim bits per die and enabling trim coverage over a wider range or to a greater resolution.

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