Incamake yuzuye y'uburyo bwo gushyira amashusho mu buryo buciriritse: MOCVD, Magnetron Sputtering, na PECVD

Mu nganda zikora ibikoresho bya semiconductor, nubwo fotolithography na etching ari byo bikorwa bikunze kuvugwa cyane, tekiniki zo gushyiramo filime nto cyangwa epitaxial nazo ni ingenzi cyane. Iyi nkuru igaragaza uburyo butandukanye busanzwe bwo gushyiramo filime nto bukoreshwa mu gukora chips, harimoMOCVD, gusohora magnetron, naPECVD.

Kuki inzira zo gukora filime nto ari ingenzi mu gukora ibyuma bito?

Urugero, tekereza umugati usanzwe utetse. Wonyine, ushobora kuryoha. Ariko, iyo wogejeho isosi zitandukanye—nk'umugati w'ibishyimbo cyangwa sirupe nziza ya malt—ushobora guhindura uburyohe bwawo burundu. Izi mpapuro zituma uburyohe burushaho kwiyongera zimeze nk'izifilime ntomu bikorwa bya semiconductor, mu gihe umugati ugororotse ubwawo uhagarariyeubutaka.

Mu gukora utumashini duto, udupira duto dufite inshingano nyinshi—gushyiramo ubushyuhe, kuyobora, gukwirakwiza urumuri, nibindi—kandi buri gikorwa gisaba uburyo bwihariye bwo gushyiramo.

1. Gushyira umwuka w'ubushyuhe mu byuma bikomoka ku bimera (MOCVD)

MOCVD ni uburyo bugezweho kandi bunoze bukoreshwa mu gushyiramo filime nto za semiconductor nziza n'imiterere mito. Igira uruhare runini mu gukora ibikoresho nka LED, lasers, n'ibikoresho by'ikoranabuhanga bikoresha ingufu.

Ibice by'ingenzi bya sisitemu ya MOCVD:

• Sisitemu yo Gutanga Gazi
  Ashinzwe kwinjiza neza ibintu bitera ingaruka mu cyumba cy’ibitera ingaruka. Ibi birimo kugenzura urujya n’uruza rw’amazi:

• Imyuka itwara imizigo

• Ibintu bibanziriza ibyuma n'ibinyabuzima

• Imyuka ya Hydride
  Sisitemu ifite uburyo bwinshi bwo guhinduranya hagati y’uburyo bwo gukura no gusukura.

• Icyumba cy'Ubutabazi
  Umutima w'iyi gahunda aho ibintu bikura by'ukuri. Ibice birimo:

  • Graphite susceptor (substrate holder)

  • Ibikoresho bipima ubushyuhe n'ubushyuhe

  • Imbuga z'urumuri zikoreshwa mu kugenzura ahantu haherereye

  • Amaboko ya roboti yo gushyiramo/gupakurura wafer mu buryo bwikora

• Sisitemu yo Kugenzura Iterambere
  Igizwe n'ibikoresho bigenzura imikorere ya logic hamwe na mudasobwa ikoreshwa mu kubika amakuru. Ibi bituma igenzura neza kandi rigasubirwamo mu gihe cyose cyo kuyashyira mu bikorwa.

• Gukurikirana ibikorwa biri aho biri
  Ibikoresho nka pyrometers na reflectometers bipima:

  • Ubunini bwa filime

  • Ubushyuhe bw'ubuso

  • Inzira yo kuzunguruka y'ubutaka
    Ibi bituma habaho gutanga ibitekerezo no kubikosora mu gihe nyacyo.

• Sisitemu yo kuvura imyotsi iva mu kirere
  Ivura ibintu byangiza ikoresheje ubushyuhe cyangwa imiti igabanya ubushyuhe kugira ngo irebe ko umutekano n'ibidukikije bikurikiza amategeko.

Imiterere ya Showerhead ifunze (CCS):

Mu byuma bipima MOCVD, imiterere ya CCS yemerera imyuka guterwa mu buryo bumwe binyuze mu mashini zisimburana mu buryo bwo kwiyuhagira. Ibi bigabanya ingaruka z'ibiza mbere y'igihe kandi bikongera uburyo bwo kuvanga ibintu kimwe.

• Itsindaicyuma gipima grafiti kizengurukabifasha cyane guhuza urwego rw'imyuka, bikongera imiterere y'urukiramende mu gice cy'inyuma.

2. Gukoresha Magnetron Sputtering

Uburyo bwa Magnetron sputtering ni uburyo bwo gushyira umwuka mu kirere (PVD) bukoreshwa cyane mu gushyiramo filime nto n'amabara, cyane cyane mu bikoresho by'ikoranabuhanga, optique, na ceramic.

Ihame ry'imikorere:

1. Ibikoresho by'ingenzi
   Ibikoresho bigomba gushyirwamo—icyuma, okiside, nitride, nibindi—bishyizwe kuri cathode.

2. Icyumba cy'imyanda
   Iyi gahunda ikorerwa munsi y'amazi menshi kugira ngo hirindwe kwanduzwa.

3. Gukora Plasma
   Gazi idafite umwuka, akenshi ariyoni, ihinduka iyoni kugira ngo ikore plasma.

4. Porogaramu y'Umurima wa Magnetic
   Imbaraga rukuruzi zifunga electrons hafi y'aho zigenewe kugira ngo zongere imikorere myiza ya iyoni.

5. Uburyo bwo gusukamo amazi
   Ion zirasa ikintu kigamije, zigakuramo atome zinyura mu cyumba zikinjira mu gice cy'ubutaka.

Ibyiza byo gukoresha Magnetron Sputtering:

• Gushyira Filime mu mwanya umwemu turere tunini.

• Ubushobozi bwo kubika ibintu bitoroshye, harimo aloyi n'ibirungo.

• Ibipimo by'Inzira Ishobora Guhindurwakugira ngo hagenzurwe neza ubugari, imiterere, n'imiterere mito.

• Filime nziza cyaneifite ubushobozi bukomeye bwo gufatana n'imbaraga za mekanike.

• Guhuza Ibikoresho Byinshi, kuva ku byuma kugeza kuri okiside na nitride.

• Imikorere y'ubushyuhe buke, ikwiriye ibintu bishobora kwibasirwa n'ubushyuhe.

3. Gushyira umwuka mu kirere hakoreshejwe plasma (PECVD)

PECVD ikoreshwa cyane mu gushyiramo uduce duto nka silicon nitride (SiNx), silicon dioxide (SiO₂), na silicon idahinduka.

Ihame:

Muri sisitemu ya PECVD, imyuka ibanziriza iyinjizwa mu cyumba cy'imyanda ahoplasma isohora urumuribikorwa hakoreshejwe:

• Gushyuha kwa RF

• DC ifite voltage nyinshi

• Microwave cyangwa amasoko ya pulse

Plasma ikora ibikorwa bya gaze-phase reactions, igatanga ubwoko bw’ibitera ingaruka zibitse ku butaka kugira ngo bikore agahu gato.

Intambwe zo Gutanga Serivisi:

1. Imiterere ya Plasma
   Bitewe n'imbaraga za elegitoroniki, imyuka ibanza irahinduka ikoresheje iyoni kugira ngo ikore radicals na iyoni zikora reactive.

2. Uburyo bwo Gusubiza no Gutwara Abantu
   Ubwo bwoko bugira ingaruka z’impinduka mu gihe bugenda bwerekeza ku gice cy’ubutaka.

3. Uburyo bwo Kureba Hasi
   Iyo bigeze ku gice cy'ubutaka, bikurura, bigatera ingaruka, hanyuma bigakora agahu gakomeye. Ibikomoka kuri bimwe birekurwa nk'imyuka.

Ibyiza bya PECVD:

• Ubumwe Bwizamu miterere n'ubugari bwa firime.

• Gufata nezandetse no ku bushyuhe buke bwo kubikamo ibintu.

• Igipimo cyo hejuru cyo kubikuza amafaranga, bigatuma ikwiriye gukoreshwa mu nganda.

4. Ubuhanga bwo Gushushanya Filimi Iciriritse

Gusobanukirwa imiterere ya firime nto ni ingenzi kugira ngo hagenzurwe ubuziranenge. Ubuhanga busanzwe burimo:

(1) Gutandukanya X-ray (XRD)

• Intego: Sesengura imiterere ya kristu, ibipimo bya lattice, n'icyerekezo.

• Ihame: Hashingiwe ku itegeko rya Bragg, ripima uburyo imirasire ya X inyura mu bikoresho bya kristu.

• Porogaramu: Crystallography, isesengura ry'icyiciro, gupima uburemere, no gusuzuma icyuma gito.

(2) Gupima Mikroskopi ya Electron (SEM)

• Intego: Reba imiterere y'ubuso n'imiterere mito.

• Ihame: Ikoresha amashanyarazi kugira ngo isuzume ubuso bw'icyitegererezo. Ibimenyetso byabonetse (urugero: electrons z'inyongera n'izisanzwe) bigaragaza ibisobanuro by'ubuso.

• Porogaramu: Isesengura ry'ibikoresho, nanotech, biology, n'ibyananiranye.

(3) Mikroskopi y'imbaraga za atomiki (AFM)

• Intego: Ubuso bw'ishusho ku buryo bwa atome cyangwa nanometero.

• Ihame: Imashini icukumbuye igenzura ubuso bwayo mu gihe ikomeza gukoresha imbaraga zihoraho; kwimura ibintu mu buryo buhagaze bitanga imiterere ya 3D.

• Porogaramu: Ubushakashatsi ku miterere ya nano, gupima ubukana bw'ubuso, inyigo ku binyabuzima.