Izinkinga zokulawula ukucaba nosayizi kuzitaki ze-PCB ezinezendlalelo ezi-2

Siyakwamukela kubhulogi likaCapel, lapho sixoxa ngazo zonke izinto ezihlobene nokukhiqizwa kwe-PCB. Kulesi sihloko, sizobhekana nezinselele ezivamile ekwakhiweni kwesitaki se-PCB enezendlalelo ezi-2 futhi sinikeze izixazululo zokubhekana nezinkinga zokulawula ukucaba nosayizi.UCapel ubengumkhiqizi ohamba phambili we-Rigid-Flex PCB, Flexible PCB, ne-HDI PCB kusukela ngo-2009. Sinonjiniyela abangaphezu kwe-100 abanolwazi olungaphezu kweminyaka eyi-15 embonini ye-PCB futhi sizibophezele ekuhlinzekeni amakhasimende nge-PCB yekhwalithi ephezulu. izixazululo.

Ukucabaisici esibalulekile okufanele sicatshangelwe lapho usebenza nezitaki ze-PCB njengoba kuthinta ngokuqondile ukusebenza kukonke nokuthembeka komkhiqizo wokugcina. I-PCB eyisicaba ngokuphelele ibalulekile ekuhlanganiseni okuphumelelayo, ukubekwa kwengxenye okulungile, nokulahla ukushisa okusebenzayo. Noma yikuphi ukuphambuka kusuka ku-flatness kungaholela ekubunjweni okungalungile kwe-solder, ukungahambi kahle kwengxenye, noma ngisho nokucindezeleka ebhodini lesifunda elingaholela kuma-shorts kagesi noma avuleke.

Ukulawula ubukhulukungenye into ebalulekile ekwakhiweni kwe-PCB, njengoba iqinisekisa ukuthi ibhodi lizongena ngokunembile ngaphakathi kwendawo ebiyelwe ngalo. Ukulawula ubukhulu obunembile kuvumela i-PCB ukuthi ihlanganiswe ngaphandle komthungo emkhiqizweni wokugcina, igwema ukuphazamiseka kwezinye izingxenye noma izakhi zesakhiwo.

Ake sihlole izixazululo ezisebenzayo zokunqoba ukucaba kanye nezinkinga zokulawula ubukhulu kuzitaki ze-PCB ezinezendlalelo ezi-2.

1. Ukukhetha okubalulekile:
Ukukhetha impahla efanele kuyisisekelo se-PCB eyisicaba. Khetha ama-laminates ekhwalithi ephezulu anokuqina okuhle kakhulu kwe-dimensional. Cabangela ukusebenzisa i-CTE ephansi (i-coefficient yokunwetshwa kwe-thermal) efana ne-FR-4, enciphisa ingcuphe yokungqubuzana ngenxa yokuguquguquka kwezinga lokushisa ngesikhathi sokukhiqiza noma ukusetshenziswa.

2. I-oda lokupakisha elilungile:
Ukuhlelwa kwezendlalelo kusitaki kungathinta kakhulu ukucaba. Qinisekisa ukuthi izendlalelo ziqondaniswe kahle nokuthi izinto ezisemqoka kanye nezandulelayo zisatshalaliswa ngokulinganayo. Ukulinganisa ukusatshalaliswa kwezingqimba zethusi ngaphakathi kwesitaki nakho kukhuthaza ukunwetshwa okufanayo kokushisa, ngaleyo ndlela kunciphisa amandla okungqubuzana.

3. Ukulawulwa kwe-impedance routing:
Ukusebenzisa ukulandelana kwe-impedance okulawulwayo akubalulekile kuphela ekuthembekeni kwesignali kodwa futhi kusiza ukugcina ukucaba. Sebenzisa amasu omzila okulawulwa yi-impedance ukuze uvimbele ukuhluka okweqile kogqinsi lwethusi kulo lonke ibhodi, okungabangela ukugoba noma ukungqubuzana.

4. Ama-Vias futhi afakwe emigodini:
Ukuba khona kwe-vias kanye ne-plad ngokusebenzisa izimbobo (PTH) kungaletha amaphuzu okucindezeleka futhi kuthinte ukuvuleka. Gwema ukubeka i- vias noma ama-PTH ezindaweni lapho zingase zibeke engcupheni ubuqotho besakhiwo sebhodi. Esikhundleni salokho, cabanga ukusebenzisa i-vias eyimpumputhe noma egqitshiwe ukuze unciphise noma yikuphi ukungqubuzana okungaba khona okubangelwa izinqubo zokumba noma zokucwenga.

5. Ukuphathwa kokushisa:
Ukuqinisekisa ukushabalaliswa kokushisa okuphumelelayo kubalulekile ekugcineni ukucaba. Izindlela ezishisayo zisetshenziselwa ukususa ukushisa kude nezindawo ezishisayo ebhodini lesekethe. Ukwengeza, cabanga ukusebenzisa indiza yethusi noma usinki wokushisa ukuze ukhiphe ukushisa kahle kakhulu. Ukuphatha okushisayo okwanele akuvimbeli kuphela ukulwa, kodwa futhi kuthuthukisa ukwethembeka okuphelele kwe-PCB.

6. Inqubo yokukhiqiza enembayo:
Sebenza nomkhiqizi onedumela elihle njengoCapel onolwazi olunzulu ekukhiqizeni ama-PCB ekhwalithi ephezulu. Amasu okukhiqiza athuthukile, okuhlanganisa ukunemba kwe-precision etching, i-lamination elawulwayo kanye nokucindezela kwezingqimba eziningi, kubalulekile ekuzuzeni ukucaba nokulawula kobukhulu.

7. Izinyathelo zokulawula ikhwalithi:
Izinyathelo zokulawula ikhwalithi eziqinile zisetshenziswa kuyo yonke inqubo yokukhiqiza. Lokhu kuhlanganisa ukuhlolwa okuvamile, izindlela ezithuthukisiwe ze-metrology kanye nokuhambisana nezindinganiso zomkhakha. Ukulawulwa kwekhwalithi okusebenzayo kuqinisekisa ukuthi izimfuneko zokulawula ukucaba kanye nobukhulu zihlale zihlangatshezwana nazo.

Ngokufigqiwe,ukucaba nokulawula kobukhulu kubalulekile empumelelweni yesitaki se-PCB enezingqimba ezi-2. Ngokukhetha ngokucophelela izinto ezisetshenziswayo, ulandela ukulandelana kokunqwabelanisa okulungile, ukusebenzisa umzila olawulwayo we-impedance, ukuphatha ukushisa ngempumelelo, kanye nokusebenza nomkhiqizi onolwazi olufana no-Capel, ungazinqoba lezi zinselele futhi uzuze ukusebenza okuphakeme kwe-PCB. Ungayekethisi kukhwalithi ye-PCB – thembela u-Capel ukuze ahlangabezane nazo zonke izidingo zakho ze-PCB.