Mtengo wofunikira wa chinyezi mu chipinda choyera cha semiconductor (FAB).

Mtengo wofunikira wa chinyezi mu chipinda choyera cha semiconductor (FAB) ndi pafupifupi 30 mpaka 50%, zomwe zimalola malire ang'onoang'ono a cholakwika ± 1%, monga m'dera la lithography - kapena kucheperako kumadera akutali a ultraviolet processing (DUV) - pomwe kwina akhoza kumasuka ku ± 5%.
Chifukwa chinyezi chachifupi chimakhala ndi zinthu zingapo zomwe zingachepetse magwiridwe antchito a zipinda zoyera, kuphatikiza:
1. Kukula kwa bakiteriya;
2. Malo kutentha chitonthozo osiyanasiyana ogwira ntchito;
3. Electrostatic charge ikuwoneka;
4. Zitsulo dzimbiri;
5. Mpweya wamadzi condensation;
6. Kuwonongeka kwa lithography;
7. Kuyamwa madzi.

Tizilombo toyambitsa matenda ndi zinthu zina zowononga zachilengedwe (nkhungu, mavairasi, mafangasi, nthata) zimatha kukhala bwino m'malo okhala ndi chinyezi chopitilira 60%. Madera ena a mabakiteriya amatha kukula pachinyezi choposa 30%. Kampaniyo imakhulupirira kuti chinyezi chiyenera kuyendetsedwa pakati pa 40% mpaka 60%, zomwe zingachepetse zotsatira za mabakiteriya ndi matenda opuma.

Chinyezi chapakati pa 40% mpaka 60% chimakhalanso chapakatikati kuti chitonthozedwe ndi anthu. Chinyezi chochuluka chimapangitsa anthu kumva kuti ali ndi vuto, pamene chinyezi chocheperapo 30% chingapangitse anthu kumva owuma, khungu lophwanyika, kupuma komanso kusasangalala.

Chinyezi chokwera kwambiri chimachepetsa kuchuluka kwa ma electrostatic charges pamalo oyeretsa - zotsatira zomwe mukufuna. Chinyezi chochepa ndi choyenera kuti chiwonjezeke kwa ndalama komanso gwero lowononga la electrostatic discharge. Chinyezichi chikamaposa 50%, ma electrostatic charger amayamba kutha mwachangu, koma chinyezi chikakhala chochepera 30%, amatha kupitilirabe kwa nthawi yayitali pa insulator kapena pamtunda wopanda maziko.

Chinyezi chapakati pa 35% ndi 40% chitha kugwiritsidwa ntchito ngati kunyengerera kokwanira, ndipo zipinda zoyera za semiconductor nthawi zambiri zimagwiritsa ntchito zowongolera zina kuti achepetse kuchuluka kwa ma electrostatic charges.

Kuthamanga kwazinthu zambiri zamakina, kuphatikiza njira za dzimbiri, kumawonjezeka ndi kuchuluka kwa chinyezi. Malo onse omwe ali ndi mpweya wozungulira chipinda choyera ndi ofulumira.