Ko te raupapa EA he ohangamihini ine matakite aunoai whakawhanakehia motuhake, i hangaia e Chengli Technology.Ka taea te whakauru ki nga whakamatautau me nga lasers ki te whakatutuki i te inenga tika 2.5d, te tukurua tika o te 0.003mm, me te tika o te ine (3+L/200)μm.Kei te nuinga whakamahia te reira i roto i te inenga o te PCB papa iahiko, karaihe papatahi, kōwae karaihe wai, pokepokea ai maripi, taputapu waea pūkoro, pereti uhi karaihe, whakarewa whakarewa me ētahi atu hua.