Botšepehi ba pontšo ke karolo ea bohlokoa ea moralo oa PCB, haholo-holo bakeng sa li-PCB tse sa fetoheng. Liboto tsena tse ikhethang tsa potoloho li fana ka ho feto-fetoha ha maemo le ho tšepahala ho hlokehang lisebelisoa tsa kajeno tsa elektronike tse tsoetseng pele. Leha ho le joalo, ka lebaka la sebopeho sa eona se rarahaneng, ho netefatsa hore ponts'o e nepahetseng ea mats'oao ho meralo ea PCB e thata e ka ba phephetso.
Ka poso ena ea blog, re tla tšohla lintlha tsa bohlokoa tse lokelang ho nahanoa le mehato e amehang ha ho baloa botšepehi ba matšoao bakeng sa meralo ea PCB e thata-flex.
1. Utloisisa lintho tsa motheo tsa botšepehi ba pontšo
Botšepehi ba pontšo bo bolela boleng ba lipontšo tsa motlakase ha li feta har'a PCB. E kenyelletsa ho sekaseka le ho laola lintlha tse fapaneng tse ka amang ts'ebetso ea mats'oao, joalo ka impedance, lerata, crosstalk, le menahano.
Bakeng sa li-PCB tse thata tse kopanyang li-substrates tse thata le tse tenyetsehang, botšepehi ba matšoao bo ba bohlokoa le ho feta. Phetoho lipakeng tsa likarolo tse thata le tse tenyetsehang e ka hlahisa liphetoho tsa impedance, phokotso ea mats'oao, le litaba tse ling tsa botšepehi ba matšoao.
2. Khetholla matšoao a bohlokoa
Mohato oa pele oa ho bala botšepehi ba lets'oao ke ho tseba matšoao a bohlokoa ka har'a moralo o thata oa PCB. Matshwao ana ke ona a hlokolosi haholo mabapi le ditaba tsa botshepehi ba matshwao mme a ka kenyelletsa matshwao a lebelo le phahameng, matshwao a ditshupanako, matshwao a phano ya motlakase, kapa letshwao lefe kapa lefe le bohlokwa tshebetsong e nepahetseng ya sesebediswa.
Ka ho tsepamisa maikutlo ho matšoao a bohlokoa, o ka beha pele tlhahlobo le phokotso ea litaba tsa botšepehi ba matšoao.
3. Sekaseka taolo ea impedance
Taolo ea impedance e bohlokoa ho boloka botšepehi ba matšoao. E etsa bonnete ba hore tšitiso ea trace ea lets'oao e tsamaellana le ts'oaetso ea mohala oa phetisetso o sebelisitsoeng. Ho li-PCB tse thata-thata, liphetoho tsa impedance li ka etsahala sebakeng sa phetoho pakeng tsa likarolo tse thata le tse tenyetsehang.
Ho bala tšitiso le ho netefatsa taolo ea eona, u ka sebelisa sebali sa impedance, sesebelisoa sa ketsiso, kapa ua sheba leqephe la data le fanoeng ke moetsi oa PCB. Ka ho bala ka nepo le ho laola impedance, lipontšo tsa matšoao li ka fokotsoa, ho netefatsa phetisetso e ntle ea matšoao.
4. Etsisa le ho sekaseka botšepehi ba pontšo
Simulation ke sesebelisoa se matla sa ho sekaseka botšepehi ba matšoao ho meralo ea PCB. Ka ho sebelisa software e khethehileng, o ka etsisa boitšoaro ba matšoao le ho tseba mathata a ka bang teng a botšepehi pele ho tlhahiso.
Ketsiso e ka u thusa ho lekola liparamente tse kang setšoantšo sa leihlo, sekhahla sa phoso, le moeli oa ponts'o ea lets'oao. E u lumella ho lekola maemo a fapaneng, ho ntlafatsa tracerouting, le ho netefatsa khetho ea hau ea moralo.
5. Fokotsa lipuo tse fapa-fapaneng
Crosstalk e etsahala ha lipontšo li kena-kenana ka lebaka la ho kopana ha motlakase pakeng tsa li-conductors tse haufi. Ho li-PCB tse thata-thata, ho laola crosstalk ho thata haholo ka lebaka la ho ba haufi ha li-conductor sebakeng sa flex.
Ho fokotsa crosstalk, o ka sebelisa mekhoa e kang ho eketsa sebaka pakeng tsa litsela, ho sebelisa lifofane tsa fatše kapa tsa motlakase e le lithebe, ho eketsa lisebelisoa tsa ho itšehla thajana, kapa ho kenya ts'ebetsong mokhoa o laoloang ke impedance.
6. Nahana ka matšoao a fapaneng
Lipontšo tse fapaneng ke theknoloji e sebetsang hantle bakeng sa phetiso ea data e potlakileng. Ka ho sebelisa matšoao a mabeli a tlatsetso a amplitude e lekanang empa a fapane le polarity, e fana ka tšireletso ea lerata le ho fokotsa monyetla oa ho senyeha ha matšoao.
Meralong e thata ea PCB, ho kenya tšebetsong lipara tse fapaneng ho thusa ho boloka botsitso ba matšoao le ho fokotsa tšitiso ea motlakase. Leha ho le joalo, tlhokomelo e tlameha ho nkoa ho netefatsa hore ho na le tšitiso e leka-lekaneng le ho fokotsa ho laola pakeng tsa lihlopha tse fapaneng.
7. Netefatsa moralo khafetsa
Netefatso ea moralo ke ts'ebetso e pheta-phetoang e kenyelletsang ho etsisa khafetsa, ho sekaseka le ho leka moralo oa PCB. E thusa ho tseba le ho rarolla mathata a mats'oao ka mekhahlelo e fapaneng ea ts'ebetso ea moralo.
Ka ho etsa letoto la litlhahlobo tsa moralo, lipapiso tsa botšepehi ba matšoao, le tlhahlobo ea prototype, o ka etsa bonnete ba hore moralo oa hau o thata oa PCB o kopana le lintlha tse hlokahalang tsa ponts'o ea matšoao.
Ka kakaretso
Ho bala ponts'o ea ponts'o ea sebopeho se thata sa PCB ho kenyelletsa ho utloisisa liphephetso tsa eona tse ikhethang, ho sekaseka matšoao a bohlokoa, ho laola ts'ebetso, ho fokotsa ho fetelletsa litaba, le ho netefatsa moralo hape. Ka ho latela mehato ena le lisebelisoa tsa ketsiso tse matlafatsang le mekhoa ea netefatso, o ka netefatsa ka nepo botšepehi ba lets'oao ho meralo e thata-thata ea PCB.
Nako ea poso: Sep-19-2023
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