Umhlahlandlela Wenqubo Yokukhiqiza ye-PCB Eguquguqukayo

Inqubo yokukhiqiza i-PCB eguquguqukayo iguqula amafilimu amancane e-polymer kanye ne-foil yethusi ibe yizifunda ezigobekayo ezinika amandla konke kusukela kuma-smartphone kanye nezifakelo zezokwelapha kuya kuzinzwa zezimoto kanye nezinhlelo zezindiza. Ngokungafani namabhodi e-FR4 aqinile, izifunda eziguquguqukayo zidinga izinto ezikhethekile, izilawuli zenqubo eziqinile, kanye nokuphathwa ngokucophelela—lapho isimo se-substrate, ukunamathela kwethusi, kanye ne-coverlay lamination kuthinta ngqo ukukhiqizwa kokuhlanganiswa kanye nokuthembeka kwesikhathi eside. Lesi sihloko sichaza ukugeleza okuphelele kokukhiqiza kwama-FPC asohlangothini olulodwa, asohlangothini oluphindwe kabili, kanye nalawo anezingqimba eziningi, amasango ekhwalithi abalulekile esigabeni ngasinye, nokuthi yini okufanele uyinikeze lapho ucela ikhotheshini.

Amabhodi wesekethe aphrintiwe ngendlela eguquguqukayo avumela ukujikeleza okunezinhlangothi ezintathu, ukunciphisa isisindo kufikela ku-70% uma kuqhathaniswa nezinye izindlela eziqinile, kanye nokusebenza okuthembekile ekusetshenzisweni kokugoba okuguquguqukayo. Kodwa lezi zinzuzo ziza nobunzima bokukhiqiza— inqubo yokukhiqiza ye-PCB eguquguqukayo idinga ukulawulwa okunembile kokufaka i-lamination, ukugoba, ukubopha, kanye nokusetshenziswa kwe-coverlay ukuze kufezwe imiphumela ehambisanayo.

Lo mhlahlandlela uhlanganisa umsebenzi ophelele wokukhiqiza ama-PCB aguquguqukayo , kusukela ekulungiseleleni izinto zokusetshenziswa kuya ekuhlolweni kokugcina kukagesi, okusiza onjiniyela kanye nochwepheshe bokuthenga baqonde ukuthi kwenzekani esigabeni ngasinye nokuthi bangazichaza kanjani izidingo ngendlela efanele.

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1. Iyini i-PCB eguquguqukayo futhi kungani ukukhiqizwa kuhlukile?

I-PCB eguquguqukayo (i-FPC) isebenzisa i-substrate encane ye-polymer—ngokuvamile i-polyimide (i-PI) noma i-polyester (i-PET)—esikhundleni se-epoxy eqinile eqiniswe nge-fiberglass. Lo mehluko oyisisekelo wezinto zokwakha udala izinselele zokukhiqiza ezingekho ngama -PCB aqinile ajwayelekile :

• Ukungazinzi kobukhulu: Izisekelo eziguquguqukayo ziyanda futhi zinciphe ngokushintsha kwezinga lokushisa nomswakama, okudinga ukulawulwa okuqinile kokubhaliswa ngesikhathi sokuthwebula izithombe kanye nokubopha.
• Ukusingatha ukuzwela: Amafilimu amancane (ngokuvamile angu-12.5–50μm) asengozini yokushwabana, ukuqhekeka, kanye nokungcola—okufuna ukuphathwa ezingeni legumbi lokuhlanza kulo lonke ukukhiqizwa.
• Ukubaluleka kokunamathela: Amandla okubopha phakathi kwethusi, inhlaka, i-substrate, kanye ne-coverlay kuthinta ngqo impilo yokuguquguquka kanye nokuthembeka ngaphansi kokugoba okuphindaphindiwe.
• Imikhawulo yokushisa: Ukushisa okuphansi kusho ukushisa okusheshayo ngesikhathi sokushiswa kwe-solder kodwa futhi nokuzwela okukhulu ekushintsheni kwezinga lokushisa kwenqubo.

1.1 Ukuhlukaniswa kwe-PCB okuguquguqukayo

I-IPC-6013 ichaza izinhlobo ezine eziyinhloko zamabhodi aphrintiwe aguquguqukayo, ngalinye linezidingo zokukhiqiza ezihlukile:

Ubunzima bokukhiqiza—kanye nezindleko—buyanda ngokubalwa kwezingqimba ngoba ungqimba ngalunye olwengeziwe ludinga imijikelezo ehlukile yokuthwebula izithombe, ukuhlola, kanye ne-lamination.

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2. Izinto Ezibalulekile Ekukhiqizweni kwe-PCB Eguquguqukayo

Ukukhethwa kwezinto ezibonakalayo kuthinta ngqo ukuguquguquka, ukusebenza kokushisa, izici zikagesi, kanye nokukhiqiza. Ukuqonda lezi zinto kusiza ukucacisa izidingo ngendlela efanele nokubikezela izindleko ezibangela.

2.1 I-Substrate Materials

I-Polyimide (PI) ibusa imakethe ye-PCB eguquguqukayo ngenxa yokuhlanganiswa kwayo okuyingqayizivele kwezakhiwo:

• Ibanga lokushisa lokusebenza: -269°C kuya ku-+400°C (isikhathi esifushane)
• Izinga lokushisa eliqhubekayo: -200°C kuya ku-+260°C
• Amandla okuqina: 230–350 MPa
• I-dielectric constant: 3.4–3.5 ku-1 MHz
• Ukumelana okuhle kakhulu kwamakhemikhali nemisebe

Izinto ezivamile ze-PI zifaka phakathi i-DuPont Kapton (uchungechunge lwe-HN, EN, FN), i-Ube Upilex (izinhlobo ze-S, SGA), kanye namafilimu e-SKC Kolon PI. Ubukhulu obujwayelekile bungu-12.5μm, 25μm, 50μm, kanye no-75μm.

I-Polyester (PET) inikeza enye indlela engabizi kakhulu yezinhlelo zokusebenza ezingabizi kakhulu—cishe izindleko eziphansi ngo-40-60% kune-polyimide. Kodwa-ke, i-PET inqunyelwe emazingeni okushisa asebenzayo angaphansi kuka-105°C futhi ayikwazi ukumelana namaphrofayili ajwayelekile angenawo umthofu, okunciphisa ukusetshenziswa kwayo ezinhlotsheni ezine-assembly yokushisa okuphansi noma izingxenye ezinamathiselwe ngaphambilini.

I-Liquid Crystal Polymer (LCP) ithola ukusetshenziswa kwezinhlelo zokusebenza zemvamisa ephezulu ngenxa ye-dielectric constant yayo ephansi kakhulu (2.9–3.1) kanye ne-dissipation factor (<0.002 ku-10 GHz), ukumuncwa komswakama okuncane (<0.02%), kanye nokusebenza kukagesi okuzinzile kumaza e-millimeter-wave.

2.2 Izinhlobo Ze-Copper Foil

Ukukhetha phakathi kwezinhlobo zethusi kuthinta kakhulu ukusebenza kwe-flex:

Ubukhulu bethusi obujwayelekile buqala ku-12μm (⅓ oz) kuya ku-70μm (2 oz), kanti u-18μm (½ oz) no-35μm (1 oz) yizona ezivame kakhulu ekusetshenzisweni okuguquguqukayo.

2.3 Isembozo kanye ne-Adhesive

I-Coverlay ifilimu ye-polyimide eyakhiwe ngaphambilini ene-adhesive backing evikela imikhondo yesekethe—ngokusebenza okufana ne-solder mask emabhodini aqinile kodwa eyenzelwe ukuguquguquka. Ukwakhiwa kwe-coverlay ejwayelekile kuhlanganisa ifilimu ye-PI engu-12.5–25μm ne-adhesive engu-15–25μm.

Izinhlelo zokunamathela zihlukaniswe ngezigaba ezimbili:

• Izinamathiselo ze-Acrylic: Ukuguquguquka okuhle, izindleko eziphansi, okwanele izinhlelo zokusebenza eziningi
• I-Epoxy adhesives: Ukumelana nokushisa okuphezulu, ukumelana okungcono kwamakhemikhali

I-FCCL engenamathelisi (engama-layer amabili) ibopha ithusi ngqo kwi-polyimide ngokusebenzisa izinqubo ze-vapor deposition noma i-cast polyimide, isuse ngokuphelele ungqimba lwe-adhesive. Lo mklamo unikeza amaphrofayili amancane, ukuguquguquka okuthuthukisiwe, ukuzinza okungcono kobukhulu, kanye nokusebenza okuphezulu kokushisa okuphezulu—kodwa ngezindleko zezinto eziphezulu.

3. Inqubo Yokukhiqiza ye-PCB Eguquguqukayo Ehlangothini Elilodwa

I-FPC enohlangothi olulodwa imelela ukwakhiwa kwesekethe okuguquguqukayo okulula kakhulu futhi okungabizi kakhulu. Njengoba inesendlalelo esisodwa sethusi futhi ingenazo izimbobo ezifakwe ipulasitiki, inqubo igxile ekuthwebuleni izithombe okunembile, ukuqopha okuhlanzekile, kanye nokubopha okufanelekile.

3.1 Ukugeleza Kwenqubo Ephelele

Ukusika Izinto → Ukubhaka → Ukubhoboza (NPTH) → Ukushiswa Kwefilimu Eyomile → Ukuvezwa → Ukuthuthukisa → Ukuqopha → Ukuhlubula → Ukwelashwa Komphezulu → Ukushiswa Kwembozo → Ukwelapha → Ukuqeda Komphezulu → Isikrini Sesilika → Ukuphrofayilisha → Ukuhlolwa Kukagesi → I-FQC → Ukupakisha

3.2 Imininingwane Yenqubo Yesinyathelo Ngesinyathelo

Isinyathelo 1: Ukusika Izinto

I-laminate egoqekile yethusi (i-FCCL) ifika ngama-roll, ngokuvamile ububanzi obungu-250–500mm. Ukuhlela ukukhiqiza kuthuthukisa usayizi wephaneli ukuze kusetshenziswe kakhulu izinto ngaphambi kokusika amashidi ukuze kucutshungulwe. Ukusika ngokunemba ngama-burrs amancane kuvimbela izinkinga zokuphatha ezingezansi.

Isinyathelo 2: Ukubhaka (Ukulungisa isimo sezulu)

Izinto ezisikiwe zibhakwa ku-120–150°C amahora angu-1–4 ukuze kususwe umswakama omuncwayo. Lesi sinyathelo esibalulekile sivimbela ukuqhekeka, ukubhabhula, kanye nokungazinzi kobukhulu phakathi nezinqubo ezilandelayo zokushisa okuphezulu. Okuqukethwe komswakama kumele kuncishiswe ngaphansi kuka-0.1% ngaphambi kokuqhubeka.

Isinyathelo 3: Ukubhoboza (Imigodi Engafakwanga Ipulasitiki)

Ku-FPC enohlangothi olulodwa, ukubhoboza kudala kuphela imigodi yamathuluzi, izici zokubeka, kanye nanoma yiziphi imigodi yemishini engafakwanga ipulasitiki echazwe ekwakhiweni. I-substrate eguquguqukayo isekelwa phakathi kwezinto eziqinile zokusekela (amashidi e-aluminium noma e-phenolic) ukuqinisekisa ukunemba kokubhoboza. Ukubhoboza nge-laser kungasetshenziswa kuma-microvia angaphansi kuka-100μm.

Isinyathelo 4: I-Dry Film Lamination

Ukumelana nefilimu eyomile ezwelayo nge-photosensitive kufakwe phezu kobuso bethusi obuhlanziwe kusetshenziswa ama-roller afudumele ku-100–120°C. Amapharamitha afanele okunamathela aqinisekisa ukunamathela okuphelele ngaphandle kwamabhamuza omoya noma imibimbi engabangela ukukhubazeka kwesithombe.

Isinyathelo 5: Ukuchayeka

Ukukhanya kwe-UV (ngokuvamile ubude be-350–450nm) kudlulisa iphethini yesekethe kusuka ku-photomask kuya ku-dry film resist. Imithombo yokukhanya ehlanganisiwe kanye nokuxhumana kwe-vacuum kuqinisekisa incazelo ebukhali yephethini. Amandla okuvezwa ayalinganiswa ukuze kufezwe i-photopolymerization ephelele ngaphandle kokuvezwa ngokweqile okonakalisa izici ezinhle.

Isinyathelo sesi-6: Ukuthuthukisa

Amaphaneli abonakalayo adlula esixazululweni sonjiniyela (ngokuvamile i-0.8–1.2% ye-sodium carbonate ku-28–32°C) esincibilikisa futhi sisuse ifilimu eyomile engakabonakali, siveze izindawo zethusi okufanele ziqoshwe. Isikhathi sokuthuthukiswa kanye nokucindezela kokufutha kulawulwa ukuze kufezwe incazelo ehlanzekile yephethini ngaphandle kokuhlasela ukumelana kwe-polymer.

Isinyathelo sesi-7: Ukuhlobisa

Ukucheba ngamakhemikhali kususa ithusi eliveziwe kusetshenziswa i-cupric chloride (e-acidic) noma i-ammoniacal etchant (i-alkaline). Amapharamitha enqubo—ukuhlushwa kwe-etchant, izinga lokushisa (ngokuvamile 48–52°C), ingcindezi yokufafaza, kanye nesivinini sokuhambisa—kulawulwa ngokunembile ukuze kufezwe ububanzi bokulandelela okuqondiwe ngokusika okuncane.

Isinyathelo 8: Ukukhumula

Ukumelana kwefilimu eyomile okusele kuhlungwa ngamakhemikhali kusetshenziswa isisombululo se-sodium hydroxide esingu-2–4% ku-45–55°C, okuveza iphethini yesekethe yethusi ehlanzekile ukuze kucutshungulwe okulandelayo.

Isinyathelo 9: Ukwelashwa Komphezulu (Ngaphambi Kokumboza)

Izindawo zethusi ziyahlanzwa futhi ziqoshwe kancane ukuze kususwe i-oxidation futhi kudalwe ubulukhuni bomphezulu obulawulwayo (ngokuvamile i-1.5–3.0μm Ra) okukhuthaza ukunamathela nge-coverlay. Lesi sinyathelo sibalulekile ekuthembekeni kwesikhathi eside.

Isinyathelo 10: Ukulungiselela i-Coverlay kanye ne-Lamination

Izinto zokumboza zinqunywa ngokunemba (ukusika nge-laser, ukubhoboza ngodayi, noma ukuqondisa nge-CNC) ezinezimbobo zama-pad, amaphuzu okuhlola, kanye nezindawo zezingxenye ngokomklamo. I-coverlay elungiselelwe iqondaniswe kahle nesekethe kusetshenziswa izinhlelo zokubhalisa ze-optical futhi ibekwe ngaphansi kokushisa (160–180°C) kanye nengcindezi (15–25 kg/cm²) imizuzu engama-30–60.

Isinyathelo sesi-11: Ukwelashwa

Ukubhaka ngemuva kokunamathela ku-150–170°C amahora angu-1–2 kuqinisekisa ukunamathela okuphelele, kukhulisa amandla okubopha kanye nokuthembeka kwesikhathi eside. Ukuqina okufanele kuvimbela ukuhlukaniswa phakathi kwemijikelezo yokushisa elandelayo.

Isinyathelo sesi-12: I-Surface Qeda

Ama-copper pad abonakalayo athola ukuqeda kobuso obuvikelayo:

• I-ENIG (Electroless Nickel Immersion Gold): 3–6μm Ni + 0.05–0.15μm Au—ukushintshwa okuhle kakhulu, indawo eyisicaba, isikhathi eside sokuphila eshalofini
• Ithini lokucwiliswa: 0.8–1.2μm Sn—ukushintshwa kahle kwe-solder, izindleko eziphansi, isikhathi sokuphila esilinganiselwe
• Isiliva Lokucwiliswa: 0.15–0.4μm Ag—ukusebenza okuhle kakhulu kwemvamisa ephezulu
• I-OSP: Ukugqoka okungokwemvelo okungu-0.2–0.5μm—izindleko eziphansi kakhulu, isikhathi esifushane kakhulu sokuphila eshalofini

Isinyathelo 13: Ukuphrinta kwesikrini sikasilika

Izifanekiso zezingxenye, izimpawu ze-polarity, kanye nokuhlonza kuphrintwa kusetshenziswa uyinki oguquguqukayo (ngokuvamile osekelwe ku-epoxy) omelana nokugoba ngaphandle kokuqhekeka. Kuqina ku-120–150°C imizuzu eyi-15–30.

Isinyathelo 14: Ukuphrofayilisha (Ukulinganisa)

Amasekethe ngamanye anqunywa kumaphaneli okukhiqiza kusetshenziswa:

• Ukusika i-Laser: Ukunemba okuphezulu kakhulu (±50μm), ukucindezeleka okuncane, okukhethwayo ezinhlotsheni eziyinkimbinkimbi
• Ukushaya nge-die: Okushesha kakhulu uma kukhulunywa ngomthamo omkhulu, kudinga ukutshalwa kwezimali ngamathuluzi
• Umzila we-CNC: Iguquguqukayo, akukho mathuluzi adingekayo, isivinini esimaphakathi

Isinyathelo 15: Ukuhlolwa kukagesi

Amasekethe ayi-100% ahlolwa ngokuqhubeka nokwehlukaniswa kusetshenziswa abahloli be-flying probe noma izinto zokuhlola ezinikezelwe. Ukuvulwa, ama-short, kanye nokuxhumeka okungalungile kuyahlonzwa ngaphambi kokuthunyelwa.

Isinyathelo 16: Ukulawulwa Kwekhwalithi Kokugcina

Ukuhlolwa okubonakalayo nobukhulu ngokwezindinganiso ze-IPC-6013 kanye ne-IPC-A-600 kuqinisekisa:

• Ububanzi bokulandelela, isikhala, kanye nencazelo yomphetho
• Ukulungiswa kanye nokunamathela kwesembozo
• Ikhwalithi yokuqedwa kobuso kanye nokumbozwa
• Ukubekezelelana okuphelele
• Ukungabikho kwamaphutha (ukuklwebheka, ukungcola, ukuhlukanisa)

Isinyathelo sesi-17: Ukupakisha

Amasekethe avunyiwe apakishwa ezikhwameni ezingashintshi ezinamakhadi okubonisa umswakama kanye nomswakama, bese evalwa ukuze athunyelwe. Umklamo wokupakisha uvikela amasekethe aguquguqukayo ekulimaleni komshini ngesikhathi sokuthuthwa.

4. Inqubo Yokukhiqiza ye-PCB Eguquguqukayo Ezinhlangothini Ezimbili

I-FPC enezinhlangothi ezimbili inezela ungqimba lwesibili lwethusi kanye nezimbobo ezifakwe amapulangwe (PTH) ezixhumanisa ngogesi izinhlangothi zombili. Lokhu kwandisa ubuningi bomzila kodwa kushintsha kakhulu ukugeleza kwenqubo—ukubhoboza kanye nokufaka amapulangwe kumele kwenzeke ngaphambi kokuthatha izithombe zengqimba yangaphandle.

4.1 Ukugeleza Kwenqubo Ephelele

Ukusika Izinto → Ukubhaka → Ukubhoboza → I-Desmear → Ithusi Elingenagesi → I-Electrolytic Copper Plating → I-Dry Film Lamination → Ukuvezwa → Ukuthuthukisa → I-Pattern Plating (Cu + Sn) → I-Striping → I-Etching → I-Tin Striping → Ukwelashwa Komphezulu → I-Coverlay Lamination (Zombili Izinhlangothi) → I-Creaping → I-Surface Finish → I-Silkscreen → I-Profiling → Ukuhlolwa Kukagesi → I-FQC → Ukupakisha

4.2 Umehluko Oyinhloko Wenqubo Kusuka Kohlangothi Olulodwa

Ukubhoboza i-PTH:

I-FPC enezinhlangothi ezimbili idinga imigodi efakwe amapulangwe ukuze ixhume ngogesi izendlalelo ezimbili zethusi. Ukubhoboza kwenzeka nge-stack ephelele ye-FCCL—ithusi eliphezulu + inhlaka + i-PI + inhlaka + ithusi elingezansi. Ububanzi bembobo buvame ukuba ngu-0.2–0.5mm kwizicelo ezijwayelekile, kanti ama-microvia aphansi afinyelela ku-0.1mm kusetshenziswa ukubhoboza nge-laser.

UDesmear:

Ukubhoboza kudala i-resin smear ezindongeni zemigodi okumele isuswe ngaphambi kokufakwa kwe-plating. I-Chemical desmear (i-potassium permanganate) noma ukwelashwa nge-plasma kukhipha i-resin emuva ukuze iveze ithusi elihlanzekile ukuze kunamathele i-plating ngendlela ethembekile. Lesi sinyathelo sibalulekile—i-desmear enganele ibangela izikhala ze-plating kanye nokuxhumana okungekuhle kwezingqimba.

Ukufakwa Kwethusi Okungenama-Electro:

Isendlalelo sembewu yethusi esincane (ngokuvamile esingu-0.3–0.8μm) sifakwa ngamakhemikhali ezindongeni nasezindaweni zemigodi ngokusebenzisa i-autocatalytic plating. Lokhu kudala indlela yokuqala yokuqhuba i-electrolytic plating elandelayo. Inqubo yethusi engena-electro ihlanganisa ukusebenza kwe-catalyst (okusekelwe ku-palladium), ukusheshisa, kanye nezinyathelo zokufaka ithusi.

Ukufakwa Kwethusi Nge-Electrolytic:

I-electrolytic plating yakha ubukhulu bethusi ngokwezidingo zomklamo—ngokuvamile i-20–25μm emigodini ukuze kube nokuthembeka okwanele. Imigqa ye-vertical continuous plating (VCP) inikeza ukusatshalaliswa kwamanje okufanayo kanye nobukhulu be-plating obuhambisanayo kuyo yonke iphaneli.

Inqubo Yokusonga Iphethini:

Ngemva kokufakwa kwethusi, kufakwa ifilimu eyomile bese kuthathwa isithombe ukuze kuvezwe kuphela izindawo zephethini yesekethe. Ukufakwa kwethusi okwengeziwe kwakha ukujiya kwe-trace, kulandelwe yi-tin noma i-tin-lead plating esebenza njengokumelana ne-etch. Ngemva kokukhipha ifilimu eyomile, ukugcaba kususa ithusi elingafuneki kuyilapho i-tin ivikela iphethini yesekethe. Ekugcineni, i-tin iyagcaba ukuze kuvezwe i-trace yethusi eqediwe.

Isembozo Esinezinhlangothi Ezimbili:

Zombili izindawo eziphezulu nezingezansi zidinga i-coverlay lamination ukuze kuvikelwe amasekethe kuzo zombili izinhlangothi. Ukubhaliswa phakathi kokuvuleka kwe-coverlay kanye nezindawo ze-pad kuzo zombili izinhlangothi kumele kulawulwe ngokucophelela.

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5. Inqubo Yokukhiqiza ye-PCB Eguquguqukayo Yezingqimba Eziningi

I-Multilayer FPC iqukethe izendlalelo ezintathu noma ngaphezulu eziqhuba ugesi, okuvumela ukuminyana okuphezulu komzila kanye nemiklamo eyinkimbinkimbi kakhulu. Umehluko omkhulu wokukhiqiza ukuthi izendlalelo zangaphakathi kumele zenziwe futhi zihlolwe ngokwehlukana ngaphambi kokuncibilikisa ugesi—futhi ukubhoboza ngemigodi kwenzeka ngemva kokuba izendlalelo zihlanganiswe ndawonye.

5.1 Ukugeleza Kwenqubo Ephelele

Ukucutshungulwa Kwesendlalelo Sangaphakathi:
Ukusika Izinto → Ukubhaka → Ukugcoba Ifilimu Eyomile → Ukuvezwa → Ukuthuthukisa → Ukuqopha → Ukuhlubula → Ukuhlolwa kwe-AOI → Ukwelashwa Komphezulu (i-Oxide Ensundu)

I-Lamination:
Ukulungiswa Kwezingqimba → Ukuhlelwa Kwe-Layup → Ukufakwa Kwe-Hot Press Lamination → Ukwelashwa Kwangemva Kokufakwa Kwe-Lamination

Ukucutshungulwa Kwesendlalelo Sangaphandle:
Ukubhoboza (PTH) → I-Desmear → Ithusi Elingenagesi → I-Electrolytic Copper Plating → Ukufanekisa Isendlalelo Sangaphandle → I-Pattern Plating → Ukuqopha → I-Coverlay Lamination → Ukuqeda Okungaphezulu → Isikrini Sesilika → Ukuphrofayilisha → Ukuhlolwa Kukagesi → I-FQC → Ukupakisha

5.2 Izinyathelo Ezibalulekile Zesendlalelo Sangaphakathi

Ukuthwebula Nokuqopha Izendlalelo Zangaphakathi:

Ingqimba ngayinye yangaphakathi icutshungulwa ngendlela efanayo ne-FPC enohlangothi olulodwa: ukushiswa kwefilimu eyomile, ukuvezwa, ukuthuthukiswa, ukugqwala, kanye nokuhlubula. Ingqimba yangaphakathi kumele ihlangabezane nezindinganiso zokwamukelwa ezivunyiwe ngaphambi kokushiswa kwendwangu. Ukuvula, amabhulukwe amafushane kanye nokunye ukungavumelani kudinga ukuxazululwa kuleso sigaba ngoba ukufinyelela ezicini ezifihliwe kunqunyelwe kakhulu ngemva kokuba isitaki sishisiwe.

Ukuhlolwa kwe-AOI:

Ukuhlolwa Okuzenzakalelayo Kwe-Optical kuskena zonke izingqimba zangaphakathi ukuze kutholakale ukuvuleka, ama-short, ukwephulwa kobubanzi be-trace, kanye nezinye iziphambeko ngaphambi kokulamina. Amaphaneli anezinkinga ayanqatshwa kulesi sigaba ukuze kugwenywe ukuchitha izinto kanye nesikhathi sokucubungula emabhodini angatholakali.

Ukwelashwa Komphezulu (i-Oxide Ensundu/Emnyama):

Izindawo zethusi ezingaphakathi ziphathwa nge-oxide ukuze kudalwe ubuso bethusi obuqinile, obunomoya oxidized obukhuthaza ukunamathela nge-bondply adhesive. Lesi sinyathelo sibalulekile—ukwelashwa nge-oxide okunganele kuholela ekuqhekekeni ngaphansi kokucindezeleka kokushisa noma ngesikhathi sokujikeleza kwe-flex.

5.3 Inqubo Yokugcotshwa Kwelaminati

Ukuqondanisa Kwesendlalelo:

Izendlalelo zangaphakathi, ama-bondply (amashidi okunamathela), kanye nama-foil ethusi angaphandle aqondaniswe kahle kusetshenziswa izikhonkwane zokubhalisa noma izinhlelo zokuqondanisa ezibonakalayo. Ukubekezelela ukubhalisa okuvamile kungu-±75μm noma okungcono—ukungahambisani kahle kubangela ukufinyela phakathi kwezendlalelo noma ukuxhumeka okuphukile kuma-via.

I-Layup kanye ne-Hot Press:

I-stack eqondile ifakwa kumshini wokucindezela i-lamination bese iboshelwa ngaphansi kwezinga lokushisa elilawulwayo (ngokuvamile ukuphakama okungu-180–200°C), ingcindezi (15–25 kg/cm²), kanye namaphrofayili esikhathi. I-bondply glue iyageleza, igcwalise izikhala, futhi ipholise ukudala isakhiwo esihlanganisiwe esinezingqimba eziningi.

Ukucutshungulwa Kwangemva Kokugaywa:

Ngemva kokumbozwa, kubholwa imigodi ukuze kuxhunywe zonke izendlalelo. Inqubo elandelayo ilandela ukugeleza kwe-FPC okunezinhlangothi ezimbili: i-desmear, ithusi elingenawo ugesi, i-electrolytic plating, i-outer layer imaging, kanye nezinyathelo ezisele zokuhlolwa kokugcina.

5.4 Ukufakwa Kwe-Lamination Okulandelanayo Kwezakhiwo Eziyinkimbinkimbi

Kumiklamo enezingqimba eziningi edinga ama-vias angaboni noma agqitshwe, kudingeka i-lamination elandelanayo:

• Ingcwatshwe nge: Xhuma izendlalelo zangaphakathi kuphela—ezenziwe futhi ezibholiwe ngaphambi kokulamina kokugcina
• Ngezimpumputhe: Xhuma ungqimba lwangaphandle nongqimba lwangaphakathi—olubhojwe ngemva kokubhoboza nge-laser noma ngokubhoboza okujulile okulawulwayo

Umjikelezo ngamunye wokubopha olandelanayo wengeza izindleko nesikhathi sokuhola kodwa uvumela ukuxhumana okuphezulu okungenakwenzeka ngokwakhiwa okujwayelekile kwembobo edlulayo.

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6. Ukulawulwa Kwekhwalithi kanye Nezindinganiso Zemboni

Ukukhiqizwa kwe-PCB okuguquguqukayo kudinga ukulawulwa kwekhwalithi okuhlelekile ngoba izinto ezincane neziguquguqukayo zizwela kakhulu ekushintsheni kwenqubo kunamabhodi aqinile. Amasango okuhlola amaningi phakathi nokukhiqiza abambe amaphutha ngaphambi kokuba abize kakhulu.

6.1 Amaphuzu Okuhlola Abalulekile

6.2 Izindinganiso ze-IPC Ezisebenzayo

• IPC-6013: Izidingo kanye Nencazelo Yokusebenza Kwamabhodi Aphrintiwe Aguquguqukayo/Aqinile—kuchaza Amakilasi 1, 2, kanye no-3 ngezidingo zokuthembeka ezikhulayo
• IPC-2223: Izinga Lokuklama Eliyingxenye Yamabhodi Aphrintiwe Aguquguqukayo—iziqondiso zokuklama ezifaka phakathi irediyasi egobile, umzila wokulandelela, kanye nokukhethwa kwezinto
• IPC-A-600: Ukwamukelwa Kwamabhodi Aphrintiwe—izindlela zokuhlola ezibonakalayo zazo zonke izinhlobo ze-PCB kufaka phakathi i-flex
• I-IPC-4202/4203/4204: Imininingwane yezinto zokwakha eziyisisekelo eziguquguqukayo, i-coverlay, kanye ne-FCCL
• IPC-TM-650: Izindlela zokuhlola izidingo ezithile ezihambisana nokugoba okuhlanganisa ukuhlolwa kokugoba kanye nokunamathela

6.3 Ukukhethwa Kwekilasi Le-IPC

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7. Izinto Okucatshangwa Ngazo Ngokuklama Ngokukhiqizwa

Izinqumo zokuklama ezenziwe ekuqaleni kwenqubo yokuthuthukisa zithinta ngqo isivuno sokukhiqiza, izindleko, kanye nokuthembeka. Ukulandela iziqondiso ze-DFM kusiza ukugwema ukuklama kabusha okubizayo kanye nokubambezeleka kokukhiqiza.

7.1 Iziqondiso ze-Bend Radius

Ngokwe-IPC-2223, irediyasi encane yokugoba incike ohlotsheni lwesicelo:

• Ukugoba okuguqukayo (ukugoba okuphindaphindiwe): Irediyasi encane yokugoba ≥10 × ukujiya kwebhodi okuphelele
• Ukugoba okuqinile (ukugoba ukuze kufakwe): Irediyasi encane yokugoba ≥6 × ukujiya kwebhodi okuphelele

Ku-FPC enohlangothi olulodwa oluyi-0.15mm ubukhulu, lokhu kusho ukuthi irediyasi encane engu-1.5mm yezinhlelo zokusebenza ezishintshashintshayo noma engu-0.9mm yokufaka okungaguquki.

7.2 Ukulandelela Umzila Ezindaweni Eziguquguqukayo

• Imizila ilandelana ngokuqondile ku-axis egobile uma kungenzeka
• Sebenzisa ama-trace agobile—gwema ama-engeli angu-90° ezindaweni ezigobile
• Ungafaki ama-via, ama-pad, noma imigodi efakwe amapulangwe ezindaweni ezigobile
• Imigqa ejikelezayo ezinhlangothini eziphambene ze-double-sided flex (umphumela we-I-beam) ukuze kuncishiswe ukugxilisa ingqondo ekucindezelekeni
• Sebenzisa ama-polygons aqanduselwe esikhundleni sokuthululwa kwethusi eliqinile ezindaweni ezigobile ukuze uthuthukise ukuguquguquka

7.3 Ukukhetha Isisindo Sethusi

Ithusi elincane lithuthukisa ukuguquguquka kodwa linciphisa amandla okuthwala ugesi. Linganisa lezi zici:

• 12μm (⅓ oz): Ukuguquguquka okuphezulu, iminonjana emincane, ugesi ophansi
• 18μm (½ oz): Ukuguquguquka okuhle, ugesi omaphakathi—ukukhetha okuvame kakhulu
• 35μm (1 oz): Umthamo wamanje ojwayelekile, ukuguquguquka okuncishisiwe
• 70μm (2 oz): Amandla kagesi aphezulu, ukuguquguquka okulinganiselwe—ngokuvamile kusetshenziswa kuphela ezindaweni eziqinile

7.4 Ukusetshenziswa kwe-Stiffener

Ama-Stiffener ahlinzeka ngokusekelwa kwemishini kokufakwa kwezingxenye noma ukufakwa kwesixhumi ezindaweni ezikhethiwe:

• FR-4: Isebenza kahle, ivame kakhulu ezindaweni zokuxhuma ze-ZIF—ukujiya 0.2–1.6mm
• I-Polyimide: Amaphrofayili amancane, ukuhambisana okungcono kokushisa—ukujiya 0.075–0.225mm
• Insimbi engagqwali: Ukuvikela nge-EMI + ukuqinisa kuhlangene—ukujiya 0.1–0.3mm
• I-aluminium: Ukushabalalisa ukushisa + ukuqina—ukujiya 0.5–2.0mm

Thola Isilinganiso Esisheshayo

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8. Izinsizakalo Zokukhiqiza ze-PCB Eziguquguqukayo ze-Highleap

I-Highleap Electronics inikeza ukukhiqizwa kwe-PCB okuguquguqukayo okuphelele kusukela ku-prototype kuya kumthamo wokukhiqiza, ngokulawulwa kwenqubo okwenzelwe ikhwalithi ehambisanayo kuzo zonke izinhlobo ze-FPC.

• Ububanzi bokukwazi: I-FPC enohlangothi olulodwa, olunezinhlangothi ezimbili, kanye nolwendlalelo olunezingqimba eziningi kuze kufike ezingqimbeni eziyi-10; ukwakhiwa okuqinile kwezicelo ezihlanganisiwe
• Ikhono lomugqa omuhle: Umkhondo/isikhala esincane 50μm/50μm semiklamo yabantu abaningi
• Izinketho zezinto: I-Polyimide (amazinga ajwayelekile nasebenza kahle kakhulu), i-LCP yezinhlelo zokusebenza ze-RF, ingcina kanye ne-FCCL engenangcina
• Izinketho zokuqeda umphezulu: I-ENIG, ithini lokucwilisa, isiliva lokucwilisa, i-OSP ngezidingo zesicelo ngasinye
• Okunamathiselwe kwe-Stiffener: I-FR-4, i-PI, insimbi engagqwali, i-aluminium enokubekwa okunembile
• Ukuhlanganiswa kwenhlangano: I-Turnkey Umhlangano we-FPC kufaka phakathi ukubekwa kwe-SMT kanye nokuhlolwa kokusebenza

8.1 Okufanele Ukufaka Ku-RFQ Yakho

Ukuze uthole ikhotheshini esheshayo nenembile, nikeza:

• Amafayela e-Gerber (ifomethi ye-RS-274X) noma idatha ye-ODB++
• Umdwebo wokukhiqiza onobukhulu, ukubekezelelana, kanye nokuhlanganiswa kwezingqimba
• Imininingwane yezinto ezibonakalayo (uhlobo lwe-PI, isisindo sethusi, ingcina/engenamathelisi)
• Imfuneko yokuqedwa kobuso
• Imininingwane ye-Stiffener uma kudingeka (izinto, ukujiya, izindawo)
• Ubuningi (isibonelo kanye nezilinganiso zevolumu yokukhiqiza)
• Imfuneko yekilasi le-IPC (Ikilasi 1, 2, noma 3)
• Noma yiziphi izimfuneko zokuhlolwa okukhethekile noma zemibhalo

Ithimba lethu lobunjiniyela libuyekeza okuthunyelwe futhi liphendula ngamanani, isikhathi sokuhola, kanye nezincomo ze-DFM ukuze ligcine iphrojekthi yakho isendleleni.