Ihe nkiri dị gịrịgịrị a na-eji na-emepụta semiconductor niile nwere nguzogide, na nguzogide ihe nkiri na-enwe mmetụta kpọmkwem na arụmọrụ nke ngwaọrụ ahụ. Anyị anaghị atụkarị nkwụsi ike zuru oke nke ihe nkiri ahụ, mana jiri mpempe akwụkwọ gosipụta ya.
Gịnị bụ akwụkwọ mgbochi na olu resistivity?
Volume resistivity, nke a makwaara dị ka olu resistivity, bụ ihe e ji mara ihe nke na-akọwa ókè ihe ahụ na-egbochi mgbaba ọkụ eletrik. Akara a na-ejikarị ρ na-anọchi anya, nkeji bụ Ω.
Mpempe akwụkwọ na-eguzogide, nke a makwaara dị ka iguzogide mpempe akwụkwọ, aha Bekee bụ nguzogide mpempe akwụkwọ, nke na-ezo aka na uru nke ihe nkiri ahụ kwa mpaghara mpaghara. Akara a na-ejikarị Rs ma ọ bụ ρs gosipụta, nkeji ahụ bụ Ω/sq ma ọ bụ Ω/□
Mmekọrịta dị n'etiti abụọ ahụ bụ: nkwụsị mpempe akwụkwọ = olu resistivity / ọkpụrụkpụ ihe nkiri, ya bụ, Rs = ρ/t
Gịnị mere tụọ mgbochi mpempe akwụkwọ?
Ịtụ nkwụsi ike zuru oke nke ihe nkiri na-achọ ịmata kpọmkwem akụkụ geometric nke ihe nkiri ahụ (ogologo, obosara, ọkpụrụkpụ), nke nwere ọtụtụ mgbanwe ma dị mgbagwoju anya maka ihe nkiri dị gịrịgịrị ma ọ bụ nke na-adịghị agbanwe agbanwe. Mgbochi mpempe akwụkwọ na-ejikọta naanị na ọkpụrụkpụ nke ihe nkiri ahụ ma nwee ike ịnwale ngwa ngwa na ozugbo na-enweghị mgbagwoju anya nha nha.
Kedu ihe nkiri dị mkpa iji tụọ nguzogide mpempe akwụkwọ?
N'ozuzu, ọ dị mkpa ka a tụọ ihe nkiri na-eduzi na ihe nkiri semiconductor maka nguzogide square, ebe ọ dịghị mkpa ka a tụọ ihe nkiri mkpuchi mkpuchi.
Na semiconductor doping, a na-atụkwa ihe mgbochi nke silicon.
Kedu ka esi tụọ nguzogide square?
A na-ejikarị usoro nyocha anọ eme ihe na ụlọ ọrụ. Usoro nyocha anọ nwere ike tụọ nguzogide square sitere na 1E-3 ruo 1E+9Ω/sq. Usoro nyocha anọ nwere ike zere njehie nha n'ihi nkwụchi kọntaktị n'etiti nyocha na nlele.
Ụzọ nha:
1) Tọọ ihe nyocha anọ ahaziri n'usoro n'elu ihe nlele ahụ.
2) Tinye ihe na-adịgide adịgide n'etiti ihe nyocha abụọ dị n'èzí.
3) Kpebie nkwụsi ike site n'ịtụle ọdịiche nwere ike n'etiti nyocha abụọ dị n'ime
RS: mgbochi mpempe akwụkwọ
ΔV: Mgbanwe na voltaji tụrụ n'etiti nyocha ime
M: A na-etinye ugbu a n'etiti nyocha dị n'èzí
Oge nzipu: Mar-29-2024