Inoshanda
Pakupera kwema1990 apo vazhinji vanovaka-upbhodhi redunhu rakadhindwamhinduro dzakarongwa, kuvaka-up akadhindwa edunhu mabhodhi akaiswawo zviri pamutemo mukushandiswa kunoshanda muhuwandu hukuru kusvika zvino.Izvo zvakakosha kugadzira hurongwa hwakasimba hwekuyedza kwemahombe, epamusoro-akadhindwa edunhu redunhu magungano (PCBA, yakadhindwa redunhu bhodhi gungano) kuve nechokwadi chekutevedzera uye kushanda nedhizaini.Pamusoro pekuvaka nekuyedza magungano akaomesesa aya, mari inoiswa mumagetsi chete inogona kunge yakakwira, ingangosvika madhora zviuru makumi maviri nezvishanu pachikamu kana ichinge yaedzwa.Nemhaka yokudhura kwakadaro, kuwana uye kugadzirisa zvinetso zvegungano idanho rinotokosha zvikuru iye zvino kupfuura zvaraimboita.Magungano emazuva ano akaomarara anosvika 18 inches square uye 18 layer;kuva nezvikamu zvinopfuura 2,900 kumativi ekumusoro nepasi;dzine 6,000 circuit nodes;uye vane anopfuura 20,000 solder pfungwa bvunzo.
chirongwa chitsva
Zviitiko zvitsva zvinoda zvakanyanya kuomarara, maPCBA akakura uye kurongedza kwakasimba.Izvi zvinodikanwa zvinopikisa kugona kwedu kuvaka nekuyedza mayunitsi aya.Kuenda kumberi, mabhodhi makuru ane zvikamu zvidiki uye maverengero epamusoro angangoenderera mberi.Semuyenzaniso, imwe dhizaini iri kudhonzerwa bhodhi redunhu ine 116,000 node, pamusoro pe5,100 zvikamu, uye anopfuura 37,800 majoini ekutengesa anoda kuyedzwa kana kusimbiswa.Ichi chikwata chinewo BGAs kumusoro uye pasi, maBGA ari pedyo nemumwe.Kuedza bhodhi rehukuru uhu uye kuoma uchishandisa mubhedha wechinyakare wetsono, ICT imwe nzira haigoneki.
Kuwedzera PCBA kuomarara uye kuwanda mukugadzira maitiro, kunyanya mukuyedza, harisi dambudziko idzva.Taona kuti kuwedzera huwandu hwepini dzekuyedza muICT bvunzo yekumisikidza yaive isiri nzira yekuenda nayo, takatanga kutarisa dzimwe nzira dzekuongorora dunhu.Tichitarisa huwandu hwekupotsa pamiriyoni, tinoona kuti pa5000 node, akawanda ezvikanganiso zvakawanikwa (zvishoma pane 31) zvinogona kunge zvichikonzerwa nekuferefeta nyaya dzekuonana kwete kwete chaiyo kugadzira hurema (Tafura 1).Saka takagadzirira kuunza huwandu hwepini dzebvunzo pasi, kwete kumusoro.Zvakadaro, kunaka kwemaitiro edu ekugadzira kunoongororwa kune yese PCBA.Isu takasarudza kuti kushandisa yechinyakare ICT yakasanganiswa neX-ray tomography yaive mhinduro inoshanda.
Nguva yekutumira: Mar-03-2023