Design and characterization measurements of teststructures to qualify printed circuit board technology

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Dr. Szabó Péter Gábor
Department of Electron Devices

My thesis describes the development and calibration of a test structure that is capable of qualifying our days printed circuit technology. After reviewing the main problems of the signal integrity, my most important task was to design the measuring composition to ensure that my results reflect the reality. Simultaneously choosing parts and drawing the schematic, I was doing pre-layout simulations with the HyperLynx Simulation Software, which granted me additional help to create the proper test structure. The next step was the of making the so-called layout of the printed circuit board, for which I used Cadence Allegro. While keep the manufacturability in mind the swarm of the measuring compositions and their exact creation was a lingering task. The complete structure was submitted to post-layout simulation, which has the huge advantage that it's made by using the exact geometry. Its results are very close to the reality, so it can be compared with the results of the pre-layout simulations to show its deficiencies. I generated artworks from the complete design and sent them to the manufacturer. In the last chapter of my thesis I reviewed the measuring requirements of the high frequency instruments. My further aim is - when the printed circuit board is completed - to do the planned measurements and compare them with the simulation results.


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