用于三维垂直异质集成的晶圆上无化学键半导体外延 - Young Jun Hong（成均馆大学）.pdf

1、June?16,?2025?(14:35-14:50)Young?Joon?Hong*(?)?(SAINT),?,?,?Semiconductor?epitaxy?without?chemical?bonds?on?wafers?for?3-dimensional?vertical?heter-integration(Feat.?Remote/van?der?Waals?epitaxy,?RGB?vertical?pixel,?5000?ppi)The?2ndROK-EU?/?ROK-US?Join?ResearchrsForm?*email:yjhong78skku.eduDept.Disp

2、lay EngineeringSemiconductor Epitaxy for 3-d Hetero-Integration LabDept.Display Engineering-2-The metaverse(a portmanteau of meta-and universe)is a hypothesized iteration of the internet,supporting persistent online 3-D virtual environments through conventional personal computing,aswellasvirtualanda

3、ugmentedrealityheadsets.Metaverses,insomelimitedform,arealreadypresentonplatformslikeVRChatorvideogameslikeSecondLife.fromWikipediaMetaverse=new emerging life platform:hyper-connective,ultrarealistic virtual universeImportant tech for metaverse devices:-Display-Communication-Mobile computer-Sensor/a

4、ctuator-BatterySemiconductor Epitaxy for 3-d Hetero-Integration LabDept.Display Engineering-3-Specificationsfor immersive see-through AR glasses:highly bright,high pixel density,lightweight full-color light emitters are necessaryCourtesy of Prof.Y.J.Choi Sejong Univ.Semiconductor Epitaxy for 3-d Het

5、ero-Integration LabDept.Display Engineering-4-How bright light sources are needed for see-through AR glass?:1M nit at least(Brightness reaching to eye)=(Brightness of projector display)1 (Optical lossopticalelements)Number of foci 2,000 nitTo ensure clear color symbology in sunny outdoor conditions,

6、a brightness of at least maximum 2,000 nits(as perceived by the eye)is required(Brightness of projector display)=(No.of foci)(2,000 nit)/1 (optical loss OE)Number of foci 5 focal planes Zhan et al,PhotoniX1,10(20)ACS Appl.Opt.Mater.2,1247(24)99%optical loss OE(Lambertian LED emission)(Brightness of