材料英语证书考试(pec)-材料词汇解释

《材料英语证书考试(pec)-材料词汇解释》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、材料英语证书考试(PEC)-材料词汇解释Acceptor -Animpurityinasemiconductorwhichacceptselectronsexcitedfromthevalenceband,leadingtoholeconduction.ActiveSilayer -Siliconlayerontopoftheburiedoxide(BOX)inSOIsubstrates.Adhesion -Abilityofmaterialstostick(adhere)toeachother.Adhesionlayer -Materialus

2、edtoimproveadhesionofmaterials,typicallyphotoresisttothesubstrateinaphotolithographicprocesses.Somemetalsarealsousedtopromoteadhesionofsubsequentlayers.AmorphousSi,a-Si -Non-crystallinethin-filmsiliconhavingnolong-rangecrystallographyorder;inferiorelectricalcharacteristicsasc

3、omparedtosingle-crystalandpolySibutcheaperandeasiertomanufacture;usedprimarilytofabricatesolarcells.Angstrom,Å -Unitoflengthcommonlyusedinsemiconductorindustry,thoughitisnotrecognizedasastandardinternationalunit;1Å=10-8cm=10-4micrometer=0.1nm;thedimensionsofatypicalatoms.Anis

4、otropic -Exhibitingphysicalpropertiesindifferingcrystallographydirections.AnisotropicEtch -Aselectiveetchwhichexhibitsanacceleratedetchratealongspecificcrystallographydirections.Batchprocess -Processinwhichmanywafersareprocessedsimultaneously,asopposedtoasinglewaferprocess.Bi

5、polar -Semiconductordevicefabricationtechnologywhichproducestransistorsthatusebothholesandelectronsaschargecarriers.Boat -1.Adevicemadeofhighpuritytemperatureresistantmaterialssuchasfusedsilica,quartz,polySi,orSiCdesignedtoholdmanysemiconductorwafersduringthermalorotherproces

6、ses;2.devicedesignedtosimultaneouslycontainsourcematerialduringevaporationwhileatthesametimeheatingthesourcetoitsmeltingpoint;madeofhighlyconductive,temperature-resistantmaterialthroughwhichcurrentispassed.BondedSOI -SOIsubstrateformedbybondingtwosiliconwaferswithoxidizedsurf

7、acessuchthatonewaferisformedwithanoxidelayersandwichedbetweentwolayersofSi;onewaferissubsequentlypolisheddowntoaspecifiedthicknesstoformanactivelayerwheredeviceswillbefabricated.Boron -ElementfromgroupIIIoftheperiodictable;actsasanacceptorinsilicon;Boronistheonlyp-typedopantu

8、sedinsilicondevicemanufacturing.Bow -Concavity,curvature,ordeformati