Active Photonic Crystal Devices Based on InP/InGaAsP/InP Slab ...
Undercut and cleaning steps. In order to ensure the mechanical degrees of freedom of the microdisk cavities, a final wet isotropic etching of the AlGaAs layer ...
Self-aligned micro-optic integrated photonic platformThe cleaning also removed the spheres showing some amount of Ge undercut in the structure, implying that a GeOx was not preventing further etching from. cleaning technology in semiconductor device manufacturingThe vertical portion of the etch stops when the buried silicon oxide is reached, but lateral etching continues until the process is terminated (Figure 3.5(d)). Eindhoven University of Technology MASTER Materials processing ...Recently, a Si. <111> wafer anisotropic undercut etching technique has been employed to transfer an ultra-thin Si layer from the mother wafer, ...
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