Ukuhlola Okungenzeka: Izakhiwo Zesekethe Eziyinkimbinkimbi kuma-PCB Aguquguqukayo

Isingeniso :

Njengoba ubuchwepheshe buthuthuka, isidingo semishini ye-elekthronikhi ehlakaniphile nesebenza kahle senyuke kakhulu. Lo mkhuba uye waholela isidingoamabhodi wesekethe aphrintiwe (ama-PCB) angakwazi ukwamukela izakhiwo eziyinkimbinkimbi ngenkathi egcina ukuguquguquka kwawo. Kule bhulogi sizohlola ukuthi kungenzeka yini ukukhiqiza ama-PCB aguquguqukayo anamasekhethi ayinkimbinkimbi.

Ukuqonda i-PCB eguquguqukayo:

Ama-PCB aguqukayo, aziwa nangokuthi ama-flex flex circuits, angenye yama-PCB aqinile. Basebenzisa i-substrate yepulasitiki eguquguqukayo evumela i-PCB ukuthi igobe futhi ivumelane nezimo ezihlukahlukene. Lesi sakhiwo esiyingqayizivele siyenza ilungele ukusetshenziswa okuhlukahlukene, okuhlanganisa okugqokekayo, imishini yezokwelapha, kanye nemboni yezimoto.

Isakhiwo sesekhethi eyinkimbinkimbi :

Izakhiwo zesekethe eziyinkimbinkimbi ziyimiklamo eyinkimbinkimbi equkethe izendlalelo eziningi, ukuxhumana okuqinile, nokuminyana kwezingxenye eziphezulu. Izibonelo zifaka ama-PCB anwebekayo amaningi anezindawo eziguquguqukayo eziqinile, isilawuli se-impedance, nama-microvias. Imiklamo enjalo ivame ukudinga amasu okukhiqiza athuthukile ukuze kuqinisekiswe ukwethembeka okuphezulu nokusebenza.

Izinselelo zokukhiqiza zezakhiwo zesekethe eziyinkimbinkimbi :

Ukukhiqiza ama-PCB aguquguqukayo anezakhiwo zesekethe eziyinkimbinkimbi kubhekana nezinselele ezimbalwa. Okokuqala, ukuqinisekisa ubuqotho besignali nokulawulwa kokuvinjelwa ezindaweni eziguquguqukayo kungaba inselele ngenxa yemvelo eguquguqukayo yamasekhethi aguquguqukayo. Okwesibili, ukuklama ukuxhumana okunokuminyana okuphezulu kuma-PCB aguquguqukayo kudinga ukuqondanisa okunembile kanye nezinqubo zokukhiqiza eziyinkimbinkimbi. Okokugcina, ukuhlanganisa izifunda eziqinile neziguquguqukayo kwandisa ubunkimbinkimbi benqubo yokukhiqiza njengoba kudinga inhlanganisela engenamthungo yezinto eziguquguqukayo neziqinile.

Izixazululo nentuthuko yezobuchwepheshe :

Naphezu kwezinselele, inqubekelaphambili ebalulekile yenziwe ekukhiqizeni amabhodi esekethe aphrintiwe aguquguqukayo anezakhiwo zesekethe eziyinkimbinkimbi. Amathuluzi okuklama athuthukile afana ne-3D modelling nesofthiwe yokulingisa inika amandla abaklami ukuthi bathuthukise imiklamo yabo futhi baqinisekise ukwethembeka. Ukwengeza, inqubekelaphambili kubuchwepheshe be-laser drilling kanye ne-laser ablation ivumela ukudalwa kwama-microvias anembe kakhulu akhuphula ukuminyana kwezingxenye futhi athuthukise ukusebenza kukagesi.

Ukwengeza, ukuthuthukiswa kwezinto eziguquguqukayo ezinezakhiwo ezithuthukisiwe zemishini nezikagesi kwandisa amathuba ezakhiwo zesekethe eziyinkimbinkimbi. Ama-laminates anganamatheli namafilimu e-polyimide asetshenziswa kabanzi njengama-substrates, anikeza ukuguquguquka okukhulayo, ukuzinza okushisayo nokuqina kwemishini.

Ukwenziwa nokucatshangelwa kwezindleko :

Nakuba kungenzeka ukukhiqiza ama-PCB aguquguqukayo anezakhiwo zesekethe eziyinkimbinkimbi, ukukhiqizwa kanye nezindleko kufanele kucatshangelwe. Lapho idizayini yesekethe iyinkimbinkimbi kakhulu, ayanda amathuba okuba nezinkinga zokukhiqiza futhi akhuphuke izindleko zokukhiqiza. Ngakho-ke, idizayini yokwenziwa ngokucophelela nokuqinisekisa nge-prototyping kubalulekile ekwehliseni ubungozi.

Ukwengeza, ukukhetha uzakwethu ofanele wokukhiqiza onobuchwepheshe bokukhiqiza i-PCB evumelana nezimo kubalulekile. Ukusebenza nomkhiqizi ohlinzeka ngamakhono afana ne-lamination, ukucubungula i-laser, nokuhlola kuqinisekisa inqubo yokukhiqiza ebushelelezi kanye nomkhiqizo wokugcina wekhwalithi ephezulu.

Isiphetho :

Ukufingqa, kungenzeka ngempela ukukhiqiza ama-PCB aguquguqukayo anezakhiwo zesekethe eziyinkimbinkimbi. Ukuthuthuka kwezobuchwepheshe, izinto ezintsha kanye nezinqubo zokukhiqiza ezithuthukisiwe kwenze kwaba nokwenzeka ukwakha imiklamo eyinkimbinkimbi kumasekethe aguquguqukayo. Kodwa-ke, kubalulekile ukucabangela ukwenziwa, izindleko kanye nokusebenzisana nabakhiqizi abanolwazi ukuze kuzuzwe ukukhiqiza okungenazihibe. Ikusasa lama-PCB avumelana nezimo libukeka lithembisa njengoba eqhubeka nokuguqula imboni yezogesi, evumela ukusebenza okuthuthukisiwe kanye nokwenzeka kokuklama ezinhlelweni eziningi ezihlukahlukene.