Nigute ushobora gupima neza ibikoresho bya SiC na GaN kugirango ukoreshe ubushobozi, utezimbere imikorere kandi yizewe

Igisekuru cya gatatu cya semiconductor, gihagarariwe na nitride ya gallium (GaN) na karubide ya silicon (SiC), byatejwe imbere byihuse kubera ibyiza byazo. Nyamara, uburyo bwo gupima neza ibipimo nibiranga ibyo bikoresho kugirango ukoreshe ubushobozi bwabyo kandi uhindure imikorere yabyo kandi byizewe bisaba ibikoresho byo gupima neza-hamwe nuburyo bwumwuga.

Igisekuru gishya cyibikoresho bigari (WBG) bigereranwa na silicon karbide (SiC) na nitride ya gallium (GaN) bigenda bikoreshwa cyane. Amashanyarazi, ibyo bintu byegereye insulator kuruta silikoni nibindi bikoresho bisanzwe bya semiconductor. Ibi bintu byashizweho kugirango tuneshe imbogamizi za silikoni kubera ko ari ibintu bigufi bitandukanijwe bityo bikaba bitera imyuka mibi y’amashanyarazi, ibyo bikaba bigaragara cyane nkubushyuhe, voltage cyangwa inshuro ziyongera. Imipaka yumvikana kuri uku kumeneka ni imiyoboro idahwitse, ihwanye no kunanirwa gukora igice.

Muri ibyo bikoresho byombi bigari, GaN ikwiranye cyane na gahunda yo gushyira ingufu nkeya kandi ziciriritse, hafi ya kV 1 no munsi ya 100 A. Agace kamwe gakura kuri GaN ni ugukoresha mumuri LED, ariko kandi kakiyongera mubindi bikoresha ingufu nke nk'itumanaho ry'imodoka na RF. Ibinyuranye, tekinoroji ikikije SiC yateye imbere kurusha GaN kandi ikwiranye nogukoresha ingufu nyinshi nko guhinduranya ibinyabiziga bikurura amashanyarazi, gukwirakwiza amashanyarazi, ibikoresho binini bya HVAC, hamwe na sisitemu yinganda.

Ibikoresho bya SiC birashobora gukora kuri voltage nyinshi, guhinduranya inshuro nyinshi, hamwe nubushyuhe burenze Si MOSFETs. Muri ibi bihe, SiC ifite imikorere ihanitse, ikora neza, ubwinshi bwimbaraga no kwizerwa. Izi nyungu zifasha abashushanya kugabanya ingano, uburemere nigiciro cyabahindura ingufu kugirango barusheho guhangana, cyane cyane mubice byinjiza amafaranga nkindege, ibinyabiziga bya gisirikare n’amashanyarazi.

SiC MOSFETs igira uruhare runini mugutezimbere igisekuru kizaza ibikoresho byo guhindura ingufu kubera ubushobozi bwabo bwo kugera kubikorwa byingufu nyinshi mubishushanyo bishingiye kubice bito. Guhinduranya bisaba kandi abajenjeri gusubiramo bumwe muburyo bwo gushushanya no kugerageza bisanzwe bikoreshwa mugukora ibikoresho bya elegitoroniki.

Ibisabwa byo kwipimisha bikomeye biriyongera

Kugirango umenye neza ubushobozi bwibikoresho bya SiC na GaN, harasabwa ibipimo nyabyo mugihe cyo guhindura imikorere kugirango hongerwe imbaraga no kwizerwa. Uburyo bwo kwipimisha kubikoresho bya semiconductor ya SiC na GaN bigomba kuzirikana inshuro nyinshi zo gukora hamwe na voltage yibi bikoresho.

Iterambere ryibikoresho byo gupima no gupima, nkibikorwa bitanga amashanyarazi uko bishakiye (AFGs), oscilloscopes, ibikoresho bipima isoko (SMU), hamwe nabasesengura ibipimo, bifasha abashinzwe gukora amashanyarazi kugera kubisubizo bikomeye byihuse. Kuzamura ibikoresho bibafasha guhangana ningorane za buri munsi. Umuyobozi w'ishami rishinzwe amasoko y'amashanyarazi muri Teck / Gishili, Jonathan Tucker yagize ati: "Kugabanya igihombo cyo guhinduranya bikomeje kuba ikibazo gikomeye ku bashinzwe ibikoresho by'amashanyarazi." Ibishushanyo bigomba gupimwa cyane kugirango bihamye. Bumwe mu buryo bwingenzi bwo gupima bwitwa ikizamini cya kabiri (DPT), nuburyo busanzwe bwo gupima ibipimo byo guhinduranya MOSFETs cyangwa ibikoresho byamashanyarazi bya IGBT.

Gushiraho kugirango ukore SiC semiconductor kabiri pulse ikizamini kirimo: generator yimikorere yo gutwara gride ya MOSFET; Oscilloscope hamwe nisesengura rya software yo gupima VDS na ID. Usibye kwipimisha kabiri, ni ukuvuga, usibye kwipimisha urwego rwumuzunguruko, hariho ibizamini byo murwego rwibikoresho, ibizamini byo murwego hamwe nibizamini bya sisitemu. Guhanga udushya mubikoresho byipimisha byafashije injeniyeri yubushakashatsi mubyiciro byose byubuzima kugirango ikore igana ibikoresho byoguhindura imbaraga bishobora kuzuza ibisabwa byubushakashatsi bidahenze.

Kuba witeguye kwemeza ibikoresho hasubijwe impinduka zogukurikiza amategeko hamwe nibikenerwa bishya byikoranabuhanga kubikoresho byabakoresha ba nyuma, kuva kubyara amashanyarazi kugeza kumashanyarazi, bituma ibigo bikora kuri electronics power byibanda kubintu bishya byongerewe agaciro kandi bigashyiraho urufatiro rwiterambere.