by the specific heating application thus defining the distance from the bottom surface of elongated electrodes 304 to the top surface 410 of base 402 fig7 like fig6 is a side cross sectional view of one embodiment of electrode apparatus 100 and illustrates a stray field 700 that is generated when the rf generator generates an rf signal and the rf signal is provided to electrode apparatus 100 as shown in fig7 stray field 700 is created in the region of space that is above the space between distal portion 610 and elongated electrode 304 although it is not a requirement in one embodiment the following configuration is preferable electrode plates 404 are spaced evenly apart from each other and all have the same height with respect to top surface 410 first lateral member 310 of frame 302 is parallel with second lateral member 311 and elongated electrodes 304 are perpendicular to both first lateral 310 member and second lateral member 311 and are also spaced evenly apart from each other the dimensions of base 402 frame 302 electrode plates 404 and elongated electrodes 304 vary depending on the heating application thus there are no preferred dimensions similarly the distance between electrode plates 404 and the distance between elongated electrodes 304 also varies depending on the heating application however in one embodiment it is preferred that the distance.