Farqiga ugu weyn ee u dhexeeya nooca N-nooca iyo P-nooca monocrystalline silicon wafers ee sawir-qaadista qorraxda
Farqiga ugu weyn ee u dhexeeya nooca N-nooca iyo P-nooca monocrystalline silicon wafers ee sawir-qaadista qorraxda
Waferrada Silikoon ee Monocrystalline waxay leeyihiin sifooyin muuqaal ah oo biraha quasi-biraha ah, oo leh korriin daciif ah, iyo korriintoodu waxay kordhisaa heerkulka sii kordhaya. Waxay kaloo leeyihiin sifooyin semiconducting muhiim ah. Marka la sameeyo doping ultra-pure monocrystalline silikoon oo leh xaddi yar oo boron ah, korantada waa la kordhin karaa si loo sameeyo semiconductor silikoon ah nooca P. Sidoo kale, doping oo leh xaddi yar oo fosfooraska ama arsenic ah ayaa sidoo kale kordhin kara dhaqdhaqaaqa, samaynta semiconductor Silicon-nooca N. Haddaba, maxay ku kala duwan yihiin nooca P-nooca iyo waferrada Silikon N-nooca?
Farqiga ugu weyn ee u dhexeeya nooca P-nooca iyo nooca N-noocrystalline silicon wafers waa sida soo socota:
Dopant: Silicon monocrystalline, doping with fosfooraska ayaa ka dhigaya N-nooca, iyo doping with boron waxay ka dhigtaa nooca P.
Hab-dhaqanka: N-nooca waa electron-conducting, iyo P-nooca waa dalool-conducting.
Waxqabadka: Inta badan fosfooraska waxaa lagu shubaa nooca N-ga, inta badan elektaroonnada bilaashka ah ayaa jira, way sii xoogaysanaysaa conductivity, iyo hoos u dhigista iska caabbinta. Inta badan boron waxaa lagu shubaa nooca P-ga, godadka badan ayaa laga soo saaraa beddelidda silikoon, way sii xoogaysanaysaa laxanka, iyo hoos u dhigista iska caabbinta.
Waqtigan xaadirka ah, waferrada silikoon ee nooca P-ga ah ayaa ah alaabada caadiga ah ee warshadaha sawir-qaadista. Waferrada silikoon ee nooca P-ga ah way fududahay in la soo saaro oo waxay leeyihiin kharashyo yar. Waferrada Silikoon ee nooca N ah ayaa caadiyan leh cimriga dadka laga tirada badan yahay, iyo waxtarka unugyada cadceedda ayaa laga dhigi karaa mid sare, laakiin habka ayaa aad u dhib badan. Waferrada Silikoon ee nooca N waxaa lagu daraa fosfooraska, kaas oo leh milmayn liidata oo leh silikoon. Inta lagu jiro sawirka usha, fosfooraska si siman looma qaybin. Waferrada silikoon ee nooca P-ga ah waxaa lagu daraa boron, kaas oo leh isku-dhafka kala soocida silikoon, iyo isku-duubnaanta kala-baxa waa sahlan tahay in la xakameeyo.