Abstract: The present disclosure is directed to methods for the fabrication of buried layers in gate-all-around (GAA) transistor structures to suppress junction leakage. In some embodiments, the method includes forming a doped epitaxial layer on a substrate, forming a stack of alternating first and second nano-sheet layers on the epitaxial layer, and patterning the stack and the epitaxial layer to form a fin structure. The method includes forming a sacrificial gate structure on the fin structure, removing portions of the fin structure not covered by the sacrificial gate structure, and etching portions of the first nano-sheet layers. Additionally, the method includes forming spacer structures on the etched portions of the first nano-sheet layers and forming source/drain (S/D) epitaxial structures on the epitaxial layer abutting the second nano-sheet layers.

Abstract: A transmitter is provided. the transmitter includes a hybrid feedback circuit and a hybrid driving circuit. The hybrid feedback circuit compares a reference voltage with a feedback voltage in closed-loop, determines whether to perform polarity reversal according to a mode control signal, controls power output according to a comparison result and the mode control signal, and generates a first output signal. The hybrid driving circuit, coupled to the hybrid feedback circuit, receives the first output signal of the hybrid feedback circuit, generates a transmitter output signal according to an input data, and generates a second output signal according to the transmitter output signal. The first output signal and the second output signal are transmitted back to the hybrid feedback circuit.

Abstract: A transmitter is provided. the transmitter includes a hybrid feedback circuit and a hybrid driving circuit. The hybrid feedback circuit compares a reference voltage with a feedback voltage in closed-loop, determines whether to perform polarity reversal according to a mode control signal, controls power output according to a comparison result and the mode control signal, and generates a first output signal. The hybrid driving circuit, coupled to the hybrid feedback circuit, receives the first output signal of the hybrid feedback circuit, generates a transmitter output signal according to an input data, and generates a second output signal according to the transmitter output signal. The first output signal and the second output signal are transmitted back to the hybrid feedback circuit.