1. Thaum tsim cov PCB, nws yog qhov nyuaj rau qhov project los faib lub hwj huam tusyees. Lub teeb xa tawm tsis zoo vim yog lub zog siv dhau lawm, nws yuav yooj yim rau kev tsim kom muaj cua sov thiab tsis yooj yim rau yaj, uas yuav cuam tshuam rau kev siv lub rooj tsav xwm hauv Circuit Court. Yog li, nws raug nquahu kom tiv thaiv qhov kub kub ntawm PCB los ntawm kev mloog zoo thaum tsim.
2. Tsim qee qhov khoom siv nrog lub zog siv mus rau qhov chaw nws yooj yim rau dissipate tshav kub, thiab nws yog qhov zoo tshaj plaws kom tsis txhob muaj lawv nyob rau hauv qhov chaw tseem ceeb tshaj plaws. Txij li PCB pawg thawj coj saib kev sib tw yuav xav sib sau ua ke ntau yam thaum lub sijhawm sib dhos, yog tias cov khoom siv nrog cov kev siv hluav taws xob ntau tau nruab rau sab hauv, qee qhov chaw me me nyob ib puag ncig yuav tsim kom muaj cua sov, uas yuav ua rau nws tsis yooj yim pom txog cov tshav kub dissipation. Yog li, nws tsim nyog yuav tsum tsim kom muaj kuab kom cov khoom siv nrog kev siv hluav taws xob ntau hauv cov chaw uas cov cua sov tawm yooj yim.
3. Ntawm cov khoom siv, cais qhov twg yog qhov tsis muaj calorific nqi, tsis zoo thaum tshav kub kub tsis kam, siab calorific tus nqi thiab zoo thaum tshav kub kub tsis kam. Piv txwv li, qhov loj-sib xyaw ua ke ntawm cov kab hluav taws xob thiab cov fais fab transistor lub cev zoo li ntawd yog txhua yam nrog cov cua kub siab thiab qhov ua tau zoo thaum tshav kub kub, thiab lawv yuav tsum tau tsim los tso rau hauv qab ntawm cov cua txias. Piv txwv li, cov ntsuas hluav taws xob, cov roj hluav taws xob sib xyaw ua ke thiab cov me me transistor lub cev muaj cov cua sov tsim hluav taws xob tsawg tsawg thiab ua rau cov cua sov tsis zoo. Cov no tuaj yeem tsim rau saum cov cua txias cua txias.