Ka poso ena ea blog, re tla hlahloba lisebelisoa tse sebelisoang ho li-PCB tse feto-fetohang le ho kenella ts'ebetsong ea kaho, re senola theknoloji e makatsang ka morao ho liboto tsena tse feto-fetohang tsa potoloho.
Liboto tsa potoloho tse hatisitsoeng tse feto-fetohang (PCBs) li fetotse indasteri ea lisebelisoa tsa elektronike ka ho fana ka mefuta e meng e feto-fetohang ho ea ho li-PCB tse thata tsa setso.Kaho ea eona e ikhethang le thepa e ntlafatsa ho feto-fetoha ha moralo, ho tšepahala le ts'ebetso.
Lisebelisoa tse sebelisoang libotong tsa potoloho tse hatisitsoeng tse feto-fetohang
Li-PCB tse tenyetsehang li entsoe ho tsoa ho motsoako oa lisebelisoa tse fapaneng ho eketsa maemo a tsona le ho tšoarella.Ha re hlahlobeng tse ling tsa lisebelisoa tsa bohlokoa tse sebelisitsoeng kahong ea eona:
1. Thepa ea motheo:
Motheo oa PCB efe kapa efe e tenyetsehang ke thepa ea substrate.Lisebelisoa tse sebelisoang ka tloaelo li kenyelletsa polyimide (PI), polymer e feto-fetohang haholo le e hanyetsanang le mocheso.PI e na le matla a matla a mochini, ho hanyetsa lik'hemik'hale le thepa ea ho kenya letsoho.Ntho e 'ngoe e tsebahalang ea substrate ke polyester (PET), e fanang ka ho feto-fetoha ha maemo ka theko e tlase.Lisebelisoa tsena li lumella liboto tsa potoloho hore li kobehe, li sothe le ho ikamahanya le libopeho le boholo bo fapaneng.
2. Lisebelisoa tsa ho khanna:
E le ho theha maqhama a motlakase pakeng tsa likarolo tse fapaneng tsa potoloho, lisebelisoa tsa conductive tse kang koporo li sebelisoa.Koporo ke sekontiri se khabane sa motlakase se nang le maemo a bonolo 'me se loketse ho sebelisoa libotong tsa potoloho tse hatisitsoeng.Lesela le lesesaane la koporo le entsoe ka laminated ho substrate ho etsa lipotoloho le mesaletsa e hlokahalang bakeng sa likhokahano tsa motlakase.
3. Lintho tse koahelang:
Thepa e koahelang e sebetsa e le lera le sireletsang ho PCB e tenyetsehang.Li fana ka tšireletso, ts'ireletso ea mochini, le ho hanyetsa maemo a tikoloho joalo ka mongobo, lerōle le lik'hemik'hale.Li-overlays tsa polyimide li sebelisoa haholo ka lebaka la botsitso ba tsona ba mocheso, ho tenyetseha le ho tšoarella nako e telele.
Theknoloji ea kaho ea liboto tsa potoloho tse hatisitsoeng tse bonolo
Ts'ebetso ea kaho ea PCB e tenyetsehang e kenyelletsa mehato e mengata e fapaneng.Ha re hlahlobeng mohato ka mong ka botlalo:
1. Tokiso ea substrate:
Mohato oa pele oa ho haha PCB e tenyetsehang ke ho lokisa thepa ea substrate.Thepa e khethiloeng ea substrate, ebang ke polyimide kapa polyester, e phekoloa ho matlafatsa bokaholimo ba eona le thepa ea sekhomaretsi.Kalafo ena e thusa ho kopanya thepa ea conductive ho substrate.
2. Moralo oa potoloho le moralo:
Ka mor'a moo, sebelisa software e thusoang ke khomphutha (CAD) ho theha moralo le moralo oa potoloho.Moralo o etsa qeto ea ho beoa ha likarolo tsa elektroniki ho boto ea potoloho le ho tsamaisa likhokahano tsa motlakase.Mohato ona o hloka ho shebisisa ka hloko lintlha tse kang botšepehi ba matšoao, kabo ea matla, le tsamaiso ea mocheso.
3. Etching le plating:
Ka mor'a hore moralo oa potoloho o phethoe, ts'ebetso ea etching e etsoa holim'a substrate.Sebelisa tharollo ea lik'hemik'hale ho tlosa koporo e feteletseng ka mokhoa o ikhethileng, ho siea mesaletsa le liphahlo tse lakatsehang tsa potoloho.Ka mor'a etching, boto ea potoloho e koahetsoe ka sekhahla se tšesaane sa koporo, se ntlafatsang tsela ea conductive le ho tiisa hore ho na le khokahanyo e tsitsitseng ea motlakase.
4. Mask oa solder le khatiso ea skrine:
Mask ea solder ke lera le sireletsang le sebelisoang holim'a boto ea potoloho.E sireletsa mesaletsa ea koporo ho oxidation, solder bridging, le litšusumetso tse ling tsa kantle.E ntan'o hatisoa skrineng ho kenya matšoao, joalo ka li-label tsa likarolo kapa matšoao a polarity, ho thusa ho kopanya le ho rarolla mathata.
5. Ho kenya le ho kopanya likaroloana:
Likarolo tsa elektronike li kentsoe holim'a li-PCB tse feto-fetohang ho sebelisoa mechini ea automated surface mount technology (SMT) kapa mekhoa ea ho kopanya ka matsoho.Solder likarolo ho li-pads u sebelisa mekhoa ea soldering e kang reflow kapa wave soldering.Ela hloko ka hloko ho netefatsa hore likarolo li hlophisitsoe hantle 'me li hokahane ka mokhoa o sireletsehileng.
6. Teko le tlhahlobo:
Hang ha boto ea potoloho e bokelloa, e feta tekong e matla le ea ho hlahloba ho netefatsa hore e sebetsa hantle le boleng ba eona.Etsa liteko tse itšebetsang tse kang In-Circuit Testing (ICT) kapa Automated Optical Inspection (AOI) ho bona mefokolo e ka bang teng kapa likhokahano tse fosahetseng.Liteko tsena li thusa ho tseba le ho lokisa mathata pele sehlahisoa sa ho qetela se romelloa.
Li-PCB tse feto-fetohang li fetohile khetho ea pele bakeng sa lits'ebetso moo mathata a sebaka, ho fokotsa boima ba 'mele le ho feto-fetoha ha maemo ho leng bohlokoa.Lisebelisoa tsa eona tse ikhethang le mekhoa ea ho haha li lumella ho itlhophisa, ho fokotsa boholo le ts'ebetso e ntlafetseng.Ho tloha indastering ea sepakapaka ho ea ho lisebelisoa tsa bongaka le lisebelisoa tsa elektroniki tsa bareki, li-PCB tse tenyetsehang li siile letšoao la tsona mafapheng a fapaneng.
Ka kakaretso
Li-PCB tse feto-fetohang li fana ka melemo e mengata ka lebaka la sebopeho sa tsona le lisebelisoa.Motsoako oa thepa ea motheo, thepa ea conductive le sekoahelo se sireletsang se tiisa ho feto-fetoha ha maemo, ho tšoarella le ho tšepahala.Ho utloisisa ts'ebetso ea kaho ea liboto tsa potoloho tse hatisitsoeng tse feto-fetohang ho re fa temohisiso ea thekenoloji e makatsang ka morao ho liboto tsena tse feto-fetohang tsa potoloho.Ha theknoloji e ntse e tsoela pele, li-PCB tse tenyetsehang li tla tsoela pele ho phetha karolo ea bohlokoa ho bopeng bokamoso ba indasteri ea lisebelisoa tsa elektroniki.
Nako ea poso: Oct-11-2023
Morao
