Ukukhetha I-Perfect Rigid-Flex Circuit Stackup: Umhlahlandlela Ophelele

Kule bhulogi, sizoxoxa ngezinto ezibalulekile okufanele zicatshangelwe lapho kukhethwa isitaki sendawo eguqukayo efanelekile samabhodi esekethe aqinile.

Emhlabeni wamabhodi esekethe aphrintiwe (ama-PCB), kunezinhlobo eziningi ezihambisana nezidingo nezimfuneko ezahlukene. Olunye uhlobo oseludume kakhulu eminyakeni yamuva ibhodi lesifunda eliqinile-flex. Lawa mabhodi anikeza kokubili izigaba eziguquguqukayo neziqinile, okuvumela izinzuzo ezihlangene zokuguquguquka nokuzinza. Kodwa-ke, lapho uklama amabhodi wesifunda aqinile-flex, isici esibalulekile esidinga ukucatshangelwa ngokucophelela ukukhetha isitaki esifanele sezindawo eziguqukayo.

Ukunqwabelanisa kwendawo ye-Flex kubhekisela ekuhlelweni kwezendlalelo engxenyeni eguquguqukayo yebhodi lesifunda eliguquguqukayo. Idlala indima ebalulekile ekuqinisekiseni ukusebenza okuphelele nokuthembeka kwebhodi elilodwa. Ukukhetha isitaki esifanele kudinga ukuqonda okuphelele kokusetshenziswa okuqondile kwebhodi, izinto ezisetshenziswayo, nezici zokusebenza ezidingekayo.

1. Qonda izidingo zokuvumelana nezimo:

Isinyathelo sokuqala ekukhetheni ukuhleleka kwendawo eguquguqukayo okufanele ube nokuqonda okucacile kwezidingo zokuguquguquka zebhodi. Cabanga ngesicelo esihlosiwe kanye nokunyakaza noma ukugoba ibhodi kungase kudinge ukubekezela ngesikhathi sokusebenza. Lokhu kuzokusiza ukuthi unqume inani lezendlalelo eziguquguqukayo kanye nezinto ezithile ozozisebenzisa.

2. Hlaziya isignali nobuqotho bamandla:

Ubuqotho besignali namandla yizici ezibalulekile zanoma iyiphi idizayini yebhodi lesifunda. Emabhodini aguquguqukayo aqinile, ukupakishwa kwezindawo eziguquguqukayo kungaba nomthelela omkhulu kusignali nobuqotho bokusabalalisa amandla. Hlaziya izidingo zesignali yesivinini esikhulu somklamo wakho, isilawuli se-impedance, nezidingo zokusabalalisa amandla. Lokhu kuzokusiza ukuthi unqume ukuhlelwa okufanele kwesignali, izindiza eziphansi, kanye namandla endaweni eguquguqukayo.

3. Linganisa izakhiwo zezinto ezibonakalayo:

Ukukhethwa kwezinto eziguquguqukayo ze-laminate zendawo kubalulekile ekufinyeleleni izici zokusebenza ezifiselekayo. Izinto ezisetshenziswayo ezahlukahlukene zibonisa amazinga ahlukahlukene wokuguquguquka, ukuqina, kanye nezakhiwo ze-dielectric. Cabangela izinto ezifana ne-polyimide, i-liquid crystal polymer, ne-flexible solder mask. Linganisa izakhiwo zabo zemishini nezikagesi ukuze uhlangabezane nezidingo zakho.

4. Cabangela izici zemvelo nokuthembeka:

Uma ukhetha isitaki sendawo eguquguqukayo, izimo zemvelo lapho amabhodi wesifunda aqinile-flex azosebenza kufanele acatshangelwe. Izinto ezinjengokushintsha kwezinga lokushisa, umswakama, nokuchayeka kumakhemikhali noma ukudlidliza kungathinta ukusebenza nokuthembeka kwebhodi lesifunda. Khetha izinto zokwakha kanye nokuhlelwa kwesakhiwo okungamelana nalezi zimo ukuze uqinisekise ukwethembeka kwesikhathi eside.

5. Sebenza nomkhiqizi wakho we-PCB:

Nakuba ungase ube nombono omuhle wezidingo zakho zedizayini, ukusebenza nomkhiqizi wakho we-PCB kubalulekile ekukhetheni ngempumelelo isitaki sendawo evumelana nezimo. Banolwazi nolwazi lokusebenza ngamabhodi esekethe aguquguqukayo futhi banganikeza ukuqonda okubalulekile nezeluleko. Sebenza eduze nabo ukuze uqinisekise ukuthi izinhloso zakho zokuklama zihambisana nokuba nokwenzeka kokukhiqiza.

Khumbula ukuthi yonke idizayini yebhodi lesifunda eliqinile eliguquguqukayo ihlukile, futhi ayikho indlela elingana nosayizi owodwa yokukhetha isitaki sendawo eguqukayo ekahle. Kudinga ukuhlaziya ngokucophelela, ukucatshangelwa kwezici ezihlukahlukene, nokusebenzisana nochwepheshe kulo mkhakha. Ukuthatha isikhathi sokwenza ukukhetha okufanele kuzoholela ekusebenzeni okuphezulu, okuthembekile, futhi okuqinile kwebhodi lesifunda eliguquguqukayo eliqinile.

Ngokufigqiwe

Ukukhetha isitaki sendawo eguquguqukayo esilungile sebhodi lesifunda eliqinile-flex kubalulekile ekusebenzeni kwayo konke nokuthembeka. Ukuqonda izidingo zokuvumelana nezimo, ukuhlaziya isignali nobuqotho bamandla, ukuhlola izakhiwo zezinto ezibonakalayo, ukucabangela izici zemvelo, nokusebenza nomkhiqizi we-PCB kuyizinyathelo ezibalulekile enqubweni yokukhetha. Ngokulandela le mihlahlandlela, ungaqinisekisa impumelelo yokuklama ibhodi lesifunda le-rigid-flex elihlangabezana nezidingo zakho ezithile kanye nezidingo.