Modern low–power parallel inter-chip interfaces necessitate dense links and low pin counts while conserving manufacturing costs. This dissertation proposes a low-power multimode transceiver for tightly coupled transmission lines based on multiconductor transmission line theory. The proposed transceiver shows an effective communication over four tightly coupled microstrip lines. The power efficiency is 10 mW/Gb/s when the aggregate bandwidth is 12 Gb/s. The occupied routing width is less than a half of the single-ended signaling systems.;Since the modal decomposition method is only for use with a uniform channel under quasi-transverse electromagnetic (TEM) assumptions, sensitivity analysis for non-perfect channel components has been performed in MMI, such as vias, via stubs, and layer-to-layer misalignments. Instead of the previously proposed per-unit-length parameter matrices based design approach, an S-parameter based design approach makes it possible for multimode interconnects to achieve a low bit-error-rate by chip, package, and channel co-design method.;Furthermore, this dissertation presents an alternative signaling scheme to cancel out crosstalk. As the same as multimode interconnect (MMI), the proposed interconnect, binary MMI, is also based on multiconductor transmission line (MTL) theory. However, crosstalk induced by adjacent lines can be cancelled out without sending encoded data by binary MMI. This makes it possible to design not only a power-effective transmitter, but also an adaptive calibration crosstalk cancellation receiver for compensating variations in physical design.
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