Octafluorocyclobutane (C4F8)

Qiyaasaha Farsamada

Octafluorocyclobutanewaa walax kiimiko ah, oo ka soo jeeda cyclobutane, qaacidadeeduna waa C4F8. Midab la'aan, ur aan lahayn, gaas aan guban karin. Dabciga deggan oo aan sun ahayn. Haddii ay dhacdo kuleyl sare, cadaadiska gudaha ee weelka ayaa kordhin doona, waxaana jiri doona khatar ah dildilaac iyo qarax. Alaabta gubta (kala-goysyada) waa hydrogen fluoride. Octafluorocyclobutane waa mid aad u deggan oo aan ka falcelin walxaha kale ee xaaladaha caadiga ah. Weelka kaydinta iyo falcelinta waxa laga samayn karaa birta shubka ah iyo birta aan lahayn 120°C, birtana waxa loo isticmaali karaa 175°C. Marka ay dhaafto 400°C, Alaabta Inconel sida, nikkel iyo platinum sidoo kale wax yar ayaa dhaawacmi kara. Marka ay gaadho 500°C, agabkani waxa ay saamayn ku yeelanayaan burburka. Heerkulka sare (600 ° C), octafluorocyclobutane wuxuu u jajabin karaa kaarboon, tetrafluoride carbon iyo xeryahooda sunta ah. Octafluorocyclobutane waxay leedahay codsiyo kala duwan oo aad u ballaaran. Sannadihii u dambeeyay, waxa si weyn loo isticmaalay qaboojiye ahaan si loogu beddelo xeryahooda chlorofluorocarbon ee la mamnuucay. Intaa waxaa dheer, waxa kale oo si caadi ah loo isticmaalaa warbaahinta dahaarka gaaska, dareerayaasha, buufinta, wakiilada xumbo, iyo etchants wareegga baaxadda weyn. , Bamka kulaylka dareeraha shaqeeya iyo alaabta ceeriin ee wax soo saarka ee C2F4 iyo C3F6 monomers. Octafluorocyclobutane-nadiifin sare leh (ka sarreeya 5N) ayaa loo isticmaalaa sidii wakiilka etching iyo wakiilka nadiifinta wareegyada VLSI. Sababtoo ah hantideeda deggan, sunta aan sunta ahayn, eber awood-xumada ozone (ODP), iyo xakamaynta wanaagsan, octafluorocyclobutane ayaa si ballaaran loogu isticmaalay dhinacyada farsamada sida korantada sare, nadiifinta iyo etching, iyo daaweynta balaasmaha sannadihii la soo dhaafay. Jawaabta deg-degga ah ee daadinta: xidho qalabka neefsashada ee isku-wada jira iyo dharka shaqada. Iska jar isha gaaska. Hawo-qaadid iyo kala-qaadid, qasid iyo fidin. U wareeji weelka soo daadanaya meel bannaan oo fiiro gaar ah u yeelo hawo-qaadista. Weelka daadanaya lama isticmaali karo, waana in lagu sameeyaa daawayn farsamo si looga saaro gaaska hadhay.

Codsiga:

① Warshadaha Cuntada:

waxaa inta badan loo isticmaalaa sida wakiilka buufin ee warshadaha cuntada, qaboojiyaha.

② Warshadaha Elektarooniga ah:

sixitaan loogu talagalay wareegga isku dhafan, waxay sidoo kale u isticmaashay isku dhafka dielectric leh sf6, iyo gargaarka polymerization ee isku dhafka fluorinated.

Xirmada caadiga ah:

Faa'iidada:

①In ka badan toban sano oo suuqa ah;

② soo saaraha shahaadada ISO;

③Dhismaha degdega ah;

④ Ilaha alaabta ceeriin ee deggan;

⑤ Nidaamka falanqaynta khadka tooska ah ee xakamaynta tayada tallaabo kasta;

⑥ Shuruuda sare iyo habka taxadarka leh ee wax looga qabanayo dhululubada ka hor inta aan la buuxin;