Ƙananan fina-finai da aka yi amfani da su a masana'antar semiconductor duk suna da juriya, kuma juriya na fim yana da tasiri kai tsaye akan aikin na'urar. Yawancin lokaci ba ma auna cikakkiyar juriya na fim ɗin ba, amma muna amfani da juriyar takardar don siffanta shi.
Menene juriya na takarda da ƙarfin juriya?
Ƙarfin ƙira, wanda kuma aka sani da juriya na ƙara, wani abu ne na zahiri wanda ke nuna yawan abin da ke hana kwararar wutar lantarki. Alamar da aka saba amfani da ita ρ tana wakilta, naúrar ita ce Ω.
Juriya na takarda, wanda kuma aka sani da juriya na takarda, sunan Ingilishi shine juriya na takarda, wanda ke nufin ƙimar juriya na fim ɗin kowane yanki na yanki. Alamun Rs ko ρs da aka saba amfani dasu don bayyanawa, rukunin shine Ω/sq ko Ω/□
Dangantakar da ke tsakanin su biyu ita ce: juriya na takarda = karfin juriya / kaurin fim, wato Rs = ρ/t
Me yasa auna juriya na takarda?
Auna cikakkiyar juriya na fim yana buƙatar sanin ainihin ma'aunin yanayin fim ɗin (tsawon tsayi, faɗi, kauri), wanda ke da nau'i-nau'i da yawa kuma yana da sarƙaƙƙiya don sirara ko siffar fim ɗin da ba ta dace ba. Juriyar takardar yana da alaƙa kawai da kauri na fim ɗin kuma ana iya gwadawa da sauri da kai tsaye ba tare da ƙididdige ƙididdiga masu rikitarwa ba.
Wadanne fina-finai ne ke buƙatar auna juriyar takardar?
Gabaɗaya, ana buƙatar auna fina-finai masu gudana da fina-finai na semiconductor don jure murabba'i, yayin da fina-finai masu rufewa ba sa buƙatar auna su.
A cikin semiconductor doping, ana auna juriyar takardar silicon.
Yadda za a auna juriya murabba'i?
Ana amfani da hanyar bincike guda huɗu gabaɗaya a cikin masana'antar. Hanyar bincike guda huɗu na iya auna juriyar murabba'i daga 1E-3 zuwa 1E+9Ω/sq. Hanyar bincike-bincike guda huɗu na iya guje wa kurakuran aunawa saboda juriyar lamba tsakanin binciken da samfurin.
Hanyoyin aunawa:
1) Saita binciken bincike guda huɗu masu layi a saman samfurin.
2) Aiwatar da akai-akai tsakanin na'urorin waje biyu.
3) Ƙayyade juriya ta hanyar auna yuwuwar bambance-bambance tsakanin bincike na ciki biyu
RS: juriya na takarda
ΔV: Canji a cikin ƙarfin lantarki da aka auna tsakanin bincike na ciki
I: Ana amfani da shi na yanzu tsakanin bincike na waje
Lokacin aikawa: Maris 29-2024