Ntawm qhov hais txog "siab purity," ntau tus neeg thawj cov tshuaj tiv thaiv tsuas yog "purer zoo dua." Tab sis rau tetramethoxymethyl glycoluril, "siab purity" qhia tsis tau tsuas yog kev txhim kho hauv kev ua tau zoo, tab sis kuj yog qhov zoo tshaj plaws hauv cov ntawv thov scenarios.
Hauv kev lag luam- qib kev siv, qhov purity ntawm ntau dua lossis sib npaug li 99% yog txaus rau TMMGU kom tau raws li cov kev xav tau ntawm cov hmoov txheej txheej crosslinkers feem ntau, nrog rau kev siv los ua cov khoom siv raw hauv kev sib txuas ntawm glycoluril resins thiab siab -kawg hmoov txheej additives. Txawm li cas los xij, thaum lub purity ntawm TMMGU nce ntxiv mus rau hluav taws xob- cov qauv qib - purity Ntau dua los yog sib npaug rau 99.5%, ib tus neeg hlau impurities Tsawg dua los yog sib npaug rau 20 ppb, noo noo tsawg dua lossis sib npaug rau 1000 ppm - nws "tus kheej" kev hloov pauv ntawm cov khoom siv hluav taws xob tau dhau los ua ib qho tseem ceeb. nyob rau hauv semiconductor manufacturing. Cov qauv no nruj npaum li cas? "Ib tug neeg hlau impurities Tsawg dua los yog sib npaug li 20 ppb" txhais tau hais tias nyob rau hauv txhua gram ntawm cov khoom, qhov loj ntawm ib leeg hlau impurity (xws li sodium, hlau, los yog tooj liab) yuav tsum tsis pub tshaj 20 nanograms - sib npaug rau tsuas muaj ib tug poob ntawm tus number case yaj nyob rau hauv ib tug Olympic-sized ua luam dej pool.
Xws li cov kev xav tau purity meej yog tsim los ua kom tau raws li kev lag luam semiconductor cov qauv nruj rau cov khoom siv hluav taws xob. High-purity TMMGU tuaj yeem siv los ua cov khoom siv raw rau qhov tsis zoo -tone photoresists thiab ua tus crosslinker hauv qab los tiv thaiv-paj coatings (BARC), ua lub luag haujlwm meej hauv cov txheej txheem photolithography ntawm chip manufacturing. Los ntawm wrinkle tiav ntawm cov khoom siv hauv tsev sab nraum zoov mus rau nanometer- nplai circuits hauv lub xov tooj ntawm tes, nws yog tib yam molecule - tsis tau nws "purity" ua rau muaj kev vam meej los ntawm cov txheej rau cov chips.