A method and structure comprise a field effect transistor structure that includes a first rectangular fin structure and a second rectangular fin structure, both positioned on a substrate. Contactless linkage of the inner ring to the outer frame is provided in at least one degree of freedom by means of a support arranged between the inner ring and the outer frame. The cavitiesregions have a density or size that is dependent on their proximity to the light emitting diode locations, in order to reduce hot spots and thereby render the light output more uniform over the area of the device. The fiber stub makes direct optical contact with the cable endfaces to enable efficient optical transmission between interconnected cables while providing a low loss, low back reflection adiabatic transition between the waveguide cores of the two cables. The silicone hyper-branched polymer surfactant is prepared by polymerizing a monomer represented by the following chemical formula, where R1 denotes a vinyl group and R2 denotes hydrogen, and includes both a hydrophobic group and a hydrophilic group.