Embodiments of the present invention provide novel techniques for creating a high speed transformer such as a pulse transformer. In particular, a secondary coil of the high speed transformer may include a single turn. The use of a single turn secondary coil simplifies the design and manufacture of the transformer and aids in more efficient inspections. Further, the single turn secondary coil transformer may reduce the number of vias used to interconnect the components of the transformer. Additionally, the embodiments described herein may significantly improve voltage isolation by single turn coils, and eliminate vias between board layers.