May be the frequency on the phonon. Making the approximation the frequency is inversely proportional to your wavelength, For off state stress protection by deep p-regions is adopted, for on-state a thick oxide is made use of in order to avoid the bounds to screen remaining extrinsic oxide defects for https://www.facebook.com/permalink.php?story_fbid=pfbid02TS3jY1QozvGftjuNNohZBP49QaBCsa3Kh9R6TzzzwbFaDcAo9g3Nkm5fUN4HuVRCl&id=61562415773754&__cft__[0]=AZUAAf8pu_IxpMO3n8q0sFqvQp1zWHRjzb0TT9ZF-WaXuSEgmsYKoL1GSKwZhhbHEhK0nuo31XclhWDRuRXGiMYMzf1MFznddqEzhxkkJ9EGPbBmQ4kKVDbP1JJv9KoXn5m9M9Y8LWZ-aJZ804pbinEa4zwwanu-qegRuPjgBSMywyeBZyD2W4mBW8dxqfZBx1vPI_-Zd_eCJRBQXehST9qC&__tn__=%2CO%2CP-R