Siliconix rhymes with:
conics, sconnix, audiotronics, avionics, centronics, conics, diasonics, electronics, electronics', endotronics, endotronics', fibronics, flextronics, harmonics, histrionics, ionics, lasersonics, lumonics, microelectronics, mnemonics, nucleonics, onyx, personics, philharmonic's, phonics, photronics, plantronics, respironics, sconnix, sonics, tectonics, tektronix, telectronics, telephonics, tonics, vitronics
Siliconix sounds like:
salesman's, salesmen's, silicones, slackening, slackens, slackness, slashing, slicing, slocan's, slogans, slogging, sloshing, slouching, slugging, sluggishness, sluicing, socializing, squelching, sulking