Humna shallaguu keessatti olaansi guddaan itti aanu kan dhufe kalaqamuu integireetid sarkiyuutii ti. Yaada integireetid sarkiyuutii jalqaba kan burqisiise saayintistii raadaarii kan Royal Radar Establishment Ministeera Ittisaa hojjachaa ture Geoffrey W.A. Dummer. Drummer waa'ee integireetid sarkiyuutii ibsa jalqabaa ummataaf Waashingitenitti Symposium on Progress in Quality Electronic Components irratti Caamsaa 7 1952 kenne.