A tamper resistant semiconductor package includes a surface having flip chip electrical contacts. In preferred embodiments, the plant extract is mechanically treated members of the genus Allium, especially garlic. More particularly, a local base station processes the received composite wideband signal to determine which of the potential desired user have transmitted user signals allocated frequency resources that at least partially overlap the frequency resources allocated to locally scheduled users and having a sufficient signal strength and quality to be detectable as present in the received signal.