Ukulawula usayizi nokushintsha kobukhulu be-PCB enezingqimba ezi-6:indawo yokushisa ephezulu kanye nengcindezi yemishini

Ungayixazulula kanjani inkinga yokulawula usayizi kanye nokushintsha kobukhulu be-6-layer PCB: ukutadisha ngokucophelela imvelo yokushisa okuphezulu nokucindezeleka kwemishini

Isingeniso

Ukwakhiwa nokukhiqiza kwebhodi lesekethe eliphrintiwe (PCB) kubhekana nezinselelo eziningi, ikakhulukazi ekugcineni ukulawula kobukhulu kanye nokunciphisa ukuhluka kobukhulu. Lokhu kuyiqiniso ikakhulukazi kuma-PCB anezingqimba ezi-6 angaphansi kwezimo zokushisa eziphezulu kanye nengcindezi yokusebenza. Kulokhu okuthunyelwe kwebhulogi, sizohlola amasu namasu asebenzayo okunqoba lezi zinkinga futhi siqinisekise ukuzinza nokuthembeka kwalawo ma-PCB.

Qonda inkinga

Ukuze uxazulule ngempumelelo noma iyiphi inkinga, kubalulekile ukuqonda kuqala imbangela yayo. Endabeni yokulawulwa kosayizi kanye nezinguquko ze-dimensional zama-PCB anengqimba engu-6, izici ezimbili eziyinhloko zidlala indima ebalulekile: indawo yokushisa ephezulu kanye nokucindezeleka komshini.

Imvelo yokushisa ephezulu

Izimo zokushisa eziphakeme, kokubili ngesikhathi sokusebenza nokukhiqiza, zingabangela ukwanda nokufinyela kwezinga lokushisa ngaphakathi kwempahla ye-PCB. Lokhu kungabangela izinguquko kusayizi nobukhulu bebhodi, kuphazamise ukusebenza kwalo kukonke. Ukwengeza, ukushisa okukhulu kungabangela ukuthi ilunga le-solder libe buthakathaka noma liphuke, kubangele izinguquko ezengeziwe zobukhulu.

Ukucindezeleka komshini

Ukucindezelwa komshini (okufana nokugoba, ukuchezuka noma ukudlidliza) kungase futhi kuthinte ukulawulwa kobukhulu kanye nokuzinza kwe-dimensional kwama-PCB anezingqimba ezi-6. Uma ingaphansi kwamandla angaphandle, izinto ze-PCB nezingxenye zingakhubazeka ngokomzimba, okungenzeka zishintshe ubukhulu bazo. Lokhu kubaluleke kakhulu ezinhlelweni zokusebenza lapho i-PCB ivamise ukuba ngaphansi kokunyakaza noma ukucindezelwa kwemishini.

Izixazululo kanye Nobuchwepheshe

1. Ukukhetha izinto ezibonakalayo

Ukukhetha izinto ezifanele kubalulekile ekwehliseni ukulawula kwe-dimensional nokuhluka kobukhulu kuma-PCB anengqimba engu-6. Khetha izinto ezine-coefficient ephansi ye-thermal expansion (CTE) njengoba zingenwa kalula ukuguquka kokushisa. Ama-laminates asezingeni eliphezulu, njenge-polyimide, angasetshenziswa ukuthuthukisa ukuzinza kwe-dimensional emazingeni okushisa aphezulu.

2. Ukuphathwa kokushisa

Ukusebenzisa amasu okuphatha okushisayo asebenzayo kubalulekile ekubhekaneni nezindawo ezinokushisa okuphezulu. Ukuqinisekisa ukunqanyulwa kokushisa okufanele ngokusetshenziswa kwamasinki okushisa, i-thermal vias, namaphedi ashisayo kusiza ukugcina ukusabalalisa kwezinga lokushisa okuzinzile kuyo yonke i-PCB. Lokhu kunciphisa amandla okunwetshwa nokufinyela kwe-thermal, kunciphisa izinkinga zokulawula ubukhulu.

3. Ukunciphisa ukucindezeleka kwemishini

Ukuthatha izinyathelo zokunciphisa nokusabalalisa ukucindezeleka komshini kungathuthukisa ngokuphawulekayo ukuzinza kwe-dimensional yama-PCB anezingqimba ezi-6. Ukuqinisa ibhodi ngezinhlaka zokusekela noma ukusebenzisa iziqinisa kungasiza ekwehliseni ukugoba nokuchezuka, kuvimbele izinkinga zokulawula ubukhulu. Ngaphezu kwalokho, ukusetshenziswa kobuchwepheshe bokunciphisa ukudlidliza kunganciphisa umthelela wokudlidliza kwangaphandle ku-PCB.

4. Umklamo wokuthembeka

Ukudizayina ama-PCB ngokwethembeka emqondweni kudlala indima ebalulekile ekwehliseni ukuhlukahluka kobukhulu. Lokhu kuhlanganisa ukucabangela izici ezifana nomzila wokulandelela, ukubekwa kwengxenye, nokunqwabelaniswa kwesendlalelo. Ukulandela okuhleliwe okuhleliwe kanye nezindiza zaphansi ezisebenzayo kunciphisa amathuba okuwohloka kwesignali ngenxa yezinguquko ze-dimensional. Ukubekwa kwengxenye efanele kungavimbela izindawo ezishisayo ekukhiqizeni ukushisa okudlulele, kuphinde kuvimbele izinkinga zokulawula usayizi.

5. Inqubo yokukhiqiza eqinile

Ukusetshenziswa kwezinqubo zokukhiqiza ezithuthukisiwe eziqapha eduze futhi zilawule izimo zokushisa kungasiza kakhulu ukugcina ukulawulwa kobukhulu kanye nokunciphisa izinguquko zobukhulu. Amasu okushisela anembile kanye nokusabalalisa ukushisa okunembile ngesikhathi somhlangano kusiza ukuqinisekisa amalunga aqinile futhi anokwethenjelwa e-solder. Ukwengeza, ukusebenzisa izinqubo ezifanele zokuphatha nokugcina ngesikhathi sokukhiqiza nokuthunyelwa kunganciphisa izinguquko ezinobukhulu obubangelwa ukucindezelwa kwemishini.

Ekuphetheni

Ukuzuza ukulawula okunembayo kobukhulu kanye nokuzinza kwe-dimensional ku-PCB enezingqimba ezi-6, ikakhulukazi ezindaweni ezishisa kakhulu nezimo zokucindezelwa kwemishini, kuveza isethi eyingqayizivele yezinselele. Lezi zinselele zinganqotshwa ngokukhethwa ngokucophelela kwezinto zokwakha, ukuqaliswa kokulawulwa okushisayo okusebenzayo kanye namasu okusiza ukucindezeleka kwemishini, ukuklama ukwethembeka, kanye nokusetshenziswa kwezinqubo zokukhiqiza eziqinile. Khumbula ukuthi indlela eyenziwe kahle yokubhekana nalezi zici ingaqinisekisa ukuzinza nokuthembeka kwe-PCB enezingqimba ezi-6, ngaleyo ndlela iqinisekise ukusebenza kwayo ngempumelelo ezinhlelweni ezihlukene ezibucayi.