Tswv yim
Thaum kawg ntawm xyoo 1990 thaum muaj ntau qhov kev tsim kholuam tawm Circuit BoardCov kev daws teeb meem tau npaj tseg, tsim cov ntawv luam tawm Circuit Court boards kuj tau muab tso rau hauv kev siv tswv yim ntau txog tam sim no. Nws yog ib qho tseem ceeb los tsim kom muaj lub tswv yim zoo tshaj plaws rau cov khoom siv loj, cov khoom siv hluav taws xob sib txuas (PCBA, luam tawm Circuit Board sib dhos) kom ntseeg tau tias kev ua tau zoo thiab kev ua haujlwm nrog kev tsim. Ntxiv rau kev tsim thiab sim cov rooj sib tham nyuaj no, cov nyiaj tau nqis peev hauv cov khoom siv hluav taws xob ib leeg tuaj yeem siab, tuaj yeem ncav cuag $ 25,000 rau ib chav tsev thaum nws tau sim thaum kawg. Vim yog cov nqi siab, nrhiav thiab kho cov teeb meem sib dhos yog ib kauj ruam tseem ceeb tshaj tam sim no dua li yav dhau los. Niaj hnub no cov rooj sib tham ntau dua yog kwv yees li 18 nti square thiab 18 txheej; muaj ntau tshaj 2,900 cov khoom nyob rau sab saum toj thiab hauv qab; muaj 6,000 circuit nodes; thiab muaj ntau tshaj 20,000 solder cov ntsiab lus los kuaj.
qhov project tshiab
Kev tsim kho tshiab yuav tsum muaj ntau txoj hauv kev, PCBAs loj dua thiab ntim nruj dua. Cov kev cai no tawm tsam peb lub peev xwm los tsim thiab sim cov chav no. Tsiv mus tom ntej, cov laug cam loj dua nrog cov khoom me me thiab cov node suav ntau dua yuav zoo li txuas ntxiv mus. Piv txwv li, ib qho qauv tsim tam sim no raug kos rau lub rooj tsav xwm hauv Circuit Court muaj kwv yees li 116,000 ntawm, tshaj 5,100 yam khoom, thiab ntau dua 37,800 cov pob qij txha yuav tsum tau kuaj lossis siv tau. Chav tsev no tseem muaj BGAs nyob rau sab saum toj thiab hauv qab, BGAs nyob ib sab. Kev ntsuam xyuas lub rooj tsavxwm ntawm qhov loj thiab qhov nyuaj uas siv lub txaj ib txwm siv ntawm cov koob, ICT ib txoj hauv kev tsis tuaj yeem ua tau.
Kev nce PCBA nyuaj thiab ceev hauv kev tsim cov txheej txheem, tshwj xeeb tshaj yog hauv kev sim, tsis yog qhov teeb meem tshiab. Paub tias kev nce tus lej xeem hauv qhov kev sim ICT tsis yog txoj hauv kev mus, peb tau pib saib lwm txoj hauv kev txheeb xyuas qhov ntsuas hluav taws xob. Saib ntawm tus naj npawb ntawm kev sojntsuam tsis nco txog ib lab, peb pom tias ntawm 5000 nodes, ntau qhov pom qhov yuam kev (tsawg dua 31) feem ntau yog vim muaj teeb meem kev sojntsuam es tsis yog kev tsim khoom tsis zoo (Table 1). Yog li peb teem tawm kom coj tus naj npawb ntawm cov pins xeem, tsis nce. Txawm li cas los xij, qhov zoo ntawm peb cov txheej txheem tsim khoom raug ntsuas rau tag nrho PCBA. Peb tau txiav txim siab tias kev siv ICT ib txwm ua nrog X-ray tomography yog ib qho kev daws teeb meem zoo.
Post lub sij hawm: Mar-03-2023