Hoa tsebahala hore tšobotsi e ntle ka ho fetisisa ea liboto tsa potoloho ke ho lumella litlhophiso tse rarahaneng tsa potoloho libakeng tse koetsoeng. Leha ho le joalo, ha ho tluoa ho moralo oa OEM PCBA (Moetsi oa lisebelisoa tsa mantlha tse hatisitsoeng ka boto ea "Printed Circuit board"), ketso e laoloang ka ho khetheha, baenjiniere ba tlameha ho hlola mefokolo le liphephetso tse 'maloa. E latelang, sengoloa sena se tla senola mefokolo ea ho rala Rigid-Flex PCB e nang le tšitiso e laoloang.
Moqapi oa PCB ea Rigid-Flex
Li-PCB tse Rigid-Flex ke lebasetere la liboto tsa potoloho tse thata le tse tenyetsehang, tse kopanyang mahlale ka bobeli ho yuniti e le 'ngoe. Mokhoa ona oa moralo o lumella ho fetoha le maemo ho hoholo lits'ebetsong moo sebaka se lefshoang, joalo ka lisebelisoa tsa bongaka, sepakapaka, le lisebelisoa tsa elektronike tsa bareki. Bokhoni ba ho koba le ho phutha PCB ntle le ho sekisetsa botšepehi ba eona ke monyetla o moholo. Leha ho le joalo, phetoho ena e tla le liphephetso tsa eona, haholo ha ho tluoa taolong ea impedance.
Litlhoko tsa Impedans tsa Rigid-Flex PCBs
Taolo ea impedance e bohlokoa lits'ebetsong tsa dijithale tse potlakileng haholo le tsa RF (Radio Frequency). Ho sitisoa ha PCB ho ama botšepehi ba matšoao, e leng se ka lebisang litabeng tse kang tahlehelo ea mats'oao, ho nahanisisa, le crosstalk. Bakeng sa li-PCB tsa Rigid-Flex, ho boloka ts'ebetso e tsitsitseng ho pholletsa le moralo ho bohlokoa ho netefatsa ts'ebetso e nepahetseng.
Ka tloaelo, mefuta e fapaneng ea li-impedance bakeng sa li-PCB tsa Rigid-Flex e hlalositsoe lipakeng tsa 50 ohms le 75 ohms, ho latela ts'ebeliso. Leha ho le joalo, ho fihlela tšitiso ena e laoloang e ka ba phephetso ka lebaka la litšobotsi tse ikhethang tsa meralo ea Rigid-Flex. Lisebelisoa tse sebelisitsoeng, botenya ba mekhahlelo, le thepa ea dielectric kaofela li phetha karolo ea bohlokoa ho khethollang ho senyeha.
Meeli ea Rigid-Flex PCB Stack-Up
E 'ngoe ea mefokolo ea mantlha ea ho rala li-PCB tsa Rigid-Flex tse nang le impedance e laoloang ke tlhophiso ea li-stack-up. The stack-up e bolela tlhophiso ea likarolo ho PCB, e ka kenyelletsang likarolo tsa koporo, lisebelisoa tsa dielectric, le likarolo tse khomarelang. Meralong ea Rigid-Flex, stack-up e tlameha ho amohela likarolo tse thata le tse tenyetsehang, tse ka thatafatsang ts'ebetso ea taolo ea impedance.
1. Litšitiso tsa Lintho
Lisebelisoa tse sebelisoang ho li-PCB tsa Rigid-Flex li ka ama ts'oaetso haholo. Lisebelisoa tse feto-fetohang hangata li na le likarolo tse fapaneng tsa dielectric ha li bapisoa le lisebelisoa tse thata. Phapang ena e ka lebisa ho phapano ea impedance eo ho leng thata ho e laola. Ho feta moo, khetho ea thepa e ka ama ts'ebetso e akaretsang ea PCB, ho kenyelletsa botsitso ba mocheso le matla a mochini.
2. Lera Botenya Fetoha
Botenya ba likarolo ho Rigid-Flex PCB bo ka fapana haholo lipakeng tsa likarolo tse thata le tse tenyetsehang. Phapang ena e ka baka mathata ho boloka impedance e tsitsitseng ho pholletsa le boto. Baenjineri ba tlameha ho bala ka hloko botenya ba lera ka leng ho etsa bonnete ba hore tšitiso e lula ka har'a sebaka se boletsoeng.
3. Litlhaloso tsa Bend Radius
Radius e kobehileng ea Rigid-Flex PCB ke ntlha e 'ngoe ea bohlokoa e ka amang impedance. Ha PCB e kobehile, thepa ea dielectric e ka hatella kapa ea otlolla, e fetola litšobotsi tsa impedance. Baqapi ba tlameha ho ikarabella bakeng sa radius ea bend ka lipalo tsa bona ho netefatsa hore impedance e lula e tsitsitse nakong ea ts'ebetso.
4. Tlhahiso ea Mamello
Mamello ea tlhahiso ea lihlahisoa le eona e ka baka mathata ho fihlella ts'ebetso e laoloang ho li-PCB tsa Rigid-Flex. Ho fapana ha mokhoa oa ho etsa lihlahisoa ho ka lebisa ho se lumellaneng ha botenya ba lera, thepa ea thepa le boholo ba kakaretso. Ho se lumellane hona ho ka fella ka ho se lumellane ha impedance e ka senyang botšepehi ba matšoao.
5. Teko le netefatso
Ho leka li-PCB tsa Rigid-Flex bakeng sa impedance e laoloang ho ka ba thata ho feta li-PCB tsa setso tse thata kapa tse tenyetsehang. Ho ka 'na ha hlokoa lisebelisoa le mekhoa e khethehileng ho lekanya impedance ka nepo likarolong tse fapaneng tsa boto. Bothata bona bo ekelitsoeng bo ka eketsa nako le litšenyehelo tse amanang le moralo le ts'ebetso ea tlhahiso.
Nako ea poso: Oct-28-2024
Morao
