ɔːlðˈoʊ ðə ɹᵻsˈɪstəns ʌv pˈækɪdʒ ɪz kwˈaɪt smˈɔːl, ðɪ ɪndˈʌktəns ʌv pˈækɪdʒ lˈiːdz ɪz sɪɡnˈɪfɪkənt wˌɪtʃ kˈɔːzᵻz ɐ vˈoʊltɪdʒ dɹˈɑːp æt ðə pˈæd loʊkˈeɪʃənz dˈuː tə ðə tˈaɪm vˈɛɹiɪŋ kˈɜːɹənt dɹˈɔːn baɪ ðə dɪvˈaɪsᵻz ˌɔn dˈaɪ.
Although the resistance of package is quite small, the inductance of package leads is significant which causes a voltage drop at the pad locations due to the time varying current drawn by the devices on die.