Cov txheej txheem tsim khoom tsim yog maj mam sib sau thiab loj hlob hauv daim ntawv ntawm micro-element superposition. Nyob rau hauv cov txheej txheem tsim, peb-dimensional khoom qauv cov ntaub ntawv ntawm ib feem yog ua tiav los ntawm lub computer los tswj cov txheej txheem tsub zuj zuj ntawm cov khoom los ua ib feem uas xav tau. Qhov kom zoo dua ntawm cov txheej txheem no yog tias qhov chaw ntawm txhua qhov kev ua haujlwm tuaj yeem tsim tau yam tsis tas yuav muaj kev npaj ntau lawm xws li cov cuab yeej thiab cov khoom siv.
Cov qauv tsim muaj nyob rau hauv kev ntsuam xyuas kev tsim, kev sib tw lossis kev nthuav qhia qauv. Yog li ntawd, cov txheej txheem no tseem hu ua sai prototyping technology. Rapid prototyping technology yog siv nyob rau hauv kev tsim cov khoom kuaj, pwm manufacturing thiab ib tug me me qhov chaw. Nws tau dhau los ua cov cuab yeej siv tau zoo txhawm rau txhawm rau txhawm rau txhim kho cov khoom tshiab thiab paub txog kev tsim vaj tsev ua ke, kom cov khoom lag luam tuaj yeem teb sai sai rau kev ua lag luam thiab txhim kho kev sib tw ntawm kev lag luam.