Mumagetsi emazuva ano uye optoelectronics, semiconductor zvinhu zvinoita basa risingadzokerike. Kubva pamafoni emafoni uye emota radar kuenda kumaindasitiri-giredhi lasers, semiconductor zvishandiso zviri kwese. Pakati pese akakosha paramita, resistivity ndeimwe yeakanyanya kukosha metrics ekunzwisisa uye kugadzira semiconductor mudziyo kuita.
1. Chii Chinonzi Resistivity?
Resistivity ihuwandu hwemuviri hunoyera kuti chinhu chinopikisa zvakasimba sei kuyerera kwemagetsi, anowanzo kuratidzwa mu ohm-centimeters (Ω·cm). Inoratidza "kupokana" kwemukati kunoitika maerekitironi pavanenge vachifamba nepakati pezvinhu. Masimbi anowanzo ane yakaderera resistivity, insulators ane yakanyanya resistivity, uye semiconductors anowira kumwe pakati-pamwe mukana wakawedzerwa we tunable resistivity. Resistivity ρ=R*(L/A), uko: R ndiyo inopokana nemagetsi, A inzvimbo yemuchinjikwa-chikamu chechinhu, L ndiyo kureba kwechinhu.
2. Zvinhu Zvinokonzera Semiconductor Resistivity
Kusiyana nesimbi, iyo resistivity ye semiconductors haina kugadziriswa. Inokonzerwa nezvimwe zvinhu zvinokosha:
① Material Type: Yakasiyana semiconductor zvinhu zvakaita sesilicon (Si), gallium arsenide (GaAs), uye indium phosphide (InP) zvine akasiyana emukati resistivity maitiro.
② Doping: Kuunza dopants (senge boron kana phosphorus) pamhando dzakasiyana uye kutarisisa kunoshandura kusungirirwa kwemutakuri, zvichikanganisa zvakanyanya kuramba.
③ Tembiricha: Semiconductor resistivity inotsamira zvakanyanya tembiricha. Sezvo tembiricha inowedzera, mutakuri anokwira anokwira, kazhinji zvichikonzera kushomeka kweresistive.
④ Crystal Mamiriro uye Kukanganisa: Kusakwana mune yekristaro chimiro-senge dislocation kana kuremara-kunogona kutadzisa mutakuri kufamba uye nekudaro kukanganisa resistivity.
3. Sei Resistivity Inobata Kushanda Kwechishandiso
Mumashandisirwo anoshanda, resistivity inokanganisa mashandisiro emagetsi, kumhanya kwekupindura, uye kugadzikana kwekushanda. Semuyenzaniso:
Mune laser diode, yakawandisa yakakwira resistivity inotungamira mukudziya kwakakosha, izvo zvinokanganisa kubuda kwechiedza uye hupenyu hwechishandiso.
Mune RF zvishandiso, yakanyatso kurongeka resistivity inogonesa yakakwana impedance yekufananidza uye yakagadziridzwa chiratidzo chekufambisa.
Mune photodetectors, high-resistivity substrates inowanzokosha kuti uwane yakaderera rima ikozvino kushanda.
Naizvozvo, dhizaini chaiyo uye kutonga kweresistive kwakakosha mune semiconductor mudziyo engineering.
4. Typical Industrial Resistivity Ranges (Reference Values)
Material Type Resistivity (Ω·cm)
Intrinsic Silicon (Si) ~2.3 × 10⁵
Doped Silicon (n-mhando/p-mhando) 10⁻³ ~ 10²
Gallium Arsenide (GaAs) 10⁶ (semi-insulating) ~ 10⁻³
Indium Phosphide (InP) 10⁴ ~ 10⁻²
5. Mhedziso
Resistivity inopfuura kungoita zvinhu parameter-icho chinhu chakakosha chinokanganisa zvakananga kuita uye kuvimbika kwemidziyo yesemiconductor. PaLumispot, isu tinokwidziridza resistivity kuburikidza nekusarudza zvinhu, chaiyo doping matekiniki, uye kunatswa maitiro ekutonga kuti tive nechokwadi chekuti zvishandiso zvedu zvinounza hunyanzvi hwepamusoro uye kushanda kwakadzikama pane dzakasiyana siyana dzekushandisa.
6. Nezvedu
Lumispot inyanzvi mukuvandudza uye kugadzira kwepamusoro-kuita semiconductor lasers uye optoelectronic zvishandiso. Isu tinonzwisisa basa rakakosha iro ma parameter ezvinyorwa seresistive anoita mukuita kwechigadzirwa. Bata isu kuti udzidze zvakawanda nezve resistivity control, customized semiconductor zvinhu, uye laser dhizaini mhinduro dzakanangana nezvido zvako zvekushandisa.
Nguva yekutumira: Jun-09-2025