Ukukhiqizwa kwe-PCB ye-CTE FR-4 ephansi ukuze kuqinisekiswe ukuthembeka kwayo

Ukukhiqizwa kwe-PCB ye-CTE FR-4 ephansi kusetshenziswa lapho ibhodi lesifunda kufanele lilawule ukunwetshwa kwe-Z-axis ngesikhathi sokulamina, ukunamathisela, ukuhlanganiswa okungenalo i-lead, ukujikeleza kokushisa, kanye nokusebenza kwesikhathi eside. I-Highleap Electronics iyifektri yokwenziwa kwe-PCB kanye nokuhlanganiswa kwe-PCB. Asikhiqizi izinto ze-laminate, prepreg, resin, noma ezimbozwe ngethusi. Indima yethu ukukhiqiza ama-PCB angenalutho kanye nokuhlanganiswa kwe-PCB sisebenzisa izinto ezichazwe ngamakhasimende noma ezivunyelwe ngamakhasimende. I-CTE FR-4 ephansi evela kubahlinzeki be-laminate abafanelekayo.

Kuphrojekthi yangempela ye-PCB noma ye-PCBA, i-Low CTE FR-4 ivame ukukhethwa ukunciphisa ukucindezeleka okufakwe imigodi, ukuthuthukisa ukuthembeka kwezingqimba eziningi, ukusekela ukugeleza kabusha okungenalo i-lead, nokugcina ukuzinza okulinganayo ekwakhiweni okunezingqimba eziphakeme noma okubaluleke kakhulu kokuthembeka. Umsebenzi wokukhiqiza uxhumanisa isidingo sezinto ezibonakalayo nokulawula i-stackup, ukuhlela i-lamination, ukuthembeka kokubhoboza kanye ne-plating, ukubuyekezwa kwe-DFM, ukulawula inqubo yokuhlanganisa, ukubhala phansi, kanye nokulandelela ukukhiqiza okuphindaphindiwe.

Kumaphrojekthi lapho i-Low CTE FR-4 iyingxenye yokwakha okuthembekile kakhulu, ingxoxo yokuqala yobunjiniyela ivame ukuba ngeyokukhiqiza i-PCB enezingqimba eziningi kunokuba kube yisilinganiso se-FR-4 esijwayelekile. Izinto ezisetshenziswayo zithinta indlela ibhodi elitholakala ngayo, elifakwa ngayo i-laminate, elibhobozwa ngayo, elifakwe ngayo i-plate, elihlanganiswa ngayo, elihlolwa ngayo, futhi eligcinwa lihambisana kusukela ku-prototype kuya ekukhiqizweni.

Izidingo Zezinto Ze-PCB Eziphansi ze-CTE FR-4 Zokukhiqiza

Imfuneko ye-CTE FR-4 ephansi kufanele iphathwe njengomyalelo wokuthembeka, hhayi njengokukhethwa kwezinto ezijwayelekile. Ekukhiqizweni kwe-PCB, i-CTE ihlobene ngqo nokuthi i-laminate ikhula kangakanani ohlangothini lobukhulu ngesikhathi sokuvezwa kokushisa. Ukwandiswa ngokweqile kwe-Z-axis kungandisa ukucindezeleka ezimbotsheni ezifakwe ipulasitiki, ama-via, ama-interface angaphakathi, izinhlelo ze-resin, kanye nama-solder joints.

Imfuneko ingavela ekudwetshweni kokwenziwa, i-AVL yamakhasimende, imininingwane yokuthembeka, uhlelo lokufaneleka kwezimoto noma izimboni, imfuneko yokuhlanganisa engenalo i-lead, noma umlando wokwehluleka kwensimu. Ngaphambi kokuba kuqale ukukhiqiza, i-callout yezinto kufanele ixhunywe ochungechungeni lwe-laminate oluvunyiwe, i-stackup, ukujiya kwebhodi eliqediwe, inani lezingqimba, isakhiwo semigodi, ukusatshalaliswa kwethusi, kanye nenqubo ye-PCBA.

Ukulawulwa kwezinto kuqala kusukela ekudwebeni kanye nokuqoqwa okuvunyiwe

Imidwebo ewusizo kakhulu ikhomba umndeni wezinto ezihlosiwe, izinga le-Tg, okulindelwe yi-CTE, ishidi lokusika le-IPC noma imininingwane yamakhasimende, nokuthi ngabe okulinganayo okuvunyiwe kuvunyelwe yini. Uma umdwebo uthi “FR-4” kuphela kuyilapho isidingo somkhiqizo silindele i-CTE FR-4 ephansi, isinqumo sezinto kufanele sicaciswe ngaphambi kokusebenzisa amathuluzi e-CAM nokuthenga izinto.

I-CTE FR-4 ephansi akufanele ishintshwe nge-FR-4 evamile ngemuva kwekhotheshini ngaphandle kokuthi ikhasimende livuma ushintsho. Okuphambene nakho kudinga ukucophelela. Uma ibhodi lalifaneleke ngento ethile ethize ethi I-CTE FR-4 ephansi, ukushintshela kwelinye izinga le-CTE ephansi kungase kuthinte ukujiya kwe-stackup, amanani e-dielectric, ukuziphatha kokubhoboza, impendulo ye-lamination, i-impedance, kanye nokuthembeka kokuhlanganiswa.

Ukusetshenziswa okujwayelekile kwe-Low CTE FR-4 PCB

• Ama-PCB anezingqimba eziningi ezibalwe ngezigaba eziphezulu
• Amabhodi okulawula ezimboni anezidingo zokuphila isikhathi eside
• Izinhlelo zokulawula ze-elekthronikhi zezimoto kanye ne-EV ezihlobene
• Ihadiwe yokuxhumana, ama-backplanes, amaseva, isitoreji, namabhodi e-telecom
• Amabhodi anezimbobo eziningi, ama-via, kanye nezixhumi ezifakwa ngokucindezela
• Amaphrojekthi e-PCBA angenawo umthofu anemijikelezo eminingi yokushisa
• Imihlangano ye-PCB yethusi elinzima noma ecindezelwe ngokushisa

Kulezi zinhlelo zokusebenza, ukukhetha izinto ezibonakalayo kuyingxenye eyodwa kuphela yohlelo lokuthembeka. Umklamo wembobo, ibhalansi yethusi, umjikelezo we-lamination, ubukhulu be-plating, isilinganiso sesici, iphrofayili yokunamathisela, kanye nezidingo zokuhlola kumele futhi zisekele inhloso efanayo yokuthembeka. Uma ibhodi lijiyile, liyinkimbinkimbi, noma liseduze nokwakhiwa okunezingqimba eziphakeme, ithimba lokuklama lingaqhathanisa nesidingo nezinto ze-PCB ezinezingqimba eziyi-10 kanye namanye amakhasi okuhlela izinto ezinezingqimba eziningi ngaphambi kokuba i-stackup iqandiswe.

Izakhiwo Zezinto Eziphansi ze-CTE FR-4 Zomklamo we-PCB

I-Low CTE FR-4 ayiyona into eyodwa esetshenziswayo. Abaphakeli be-laminate abahlukene banikeza izinhlelo ezahlukene ze-resin, izitayela zengilazi, izinketho ze-copper foil, amanani e-Tg, amanani e-Td, izakhiwo ze-dielectric, ukumelana ne-CAF, kanye nokwakhiwa kwangaphambili. Ishidi ledatha lomhlinzeki elikhethiwe kufanele lisetshenziswe ekwakheni kokugcina, ikakhulukazi lapho kuhileleke ukuvimba okulawulwayo, ukuthembeka kwembobo edlulayo, ukuhlanganiswa okungenalo i-lead, noma ukukhiqizwa okuphindaphindiwe.

Ithebula elingezansi linikeza izindawo zokuhlola zobunjiniyela ezisebenzayo zokuxoxisana kwasekuqaleni. Amanani akufanele akopishwe emdwebeni ngaphandle kokuqinisekisa uchungechunge oluqondile lwe-laminate kanye ne-prepreg oluzosetshenziselwa ukukhiqiza.

Onjiniyela bamaphuzu edatha yezinto ezibonakalayo kufanele bawaqinisekise ngaphambi kokukhishwa

I-CTE ephansi iyodwa ayiqinisekisi i-PCB ethembekile. Ukwakhiwa okuvunyiwe kufanele kuhlanganise izakhiwo ezifanele ze-laminate nomklamo wemigodi ekhiqizwayo, i-plating elawulwayo, ithusi elilinganisiwe, amanothi e-stackup acacile, ukuqeda okufanelekile kwendawo, kanye nenqubo ye-PCBA engadluli ikhono lokushisa elisebenzayo lezinto. Imininingwane ye-core kanye ne-prepreg kufanele ihlolwe kusenesikhathi ngoba izinto ze-prepreg ze-PCB ezinezingqimba eziningi zithinta ukugeleza kwe-resin, ukujiya kwe-dielectric, ukuziphatha kwe-lamination, kanye nokulawula i-stackup yokugcina.

Ukwenziwa kwe-PCB ye-CTE FR-4 ephansi ukuze kuqinisekiswe ukuthembeka kwe-Through-Hole

Isizathu esinamandla kakhulu sokucacisa i-Low CTE FR-4 sivame ukuba yi-through-hole kanye nokuthembeka. Lapho ibhodi likhula ngesikhathi sokuvezwa ukushisa, imiphongolo yethusi kanye nokuxhumeka kwengqimba yangaphakathi kubhekana nokucindezeleka komshini. Ukwandiswa kwe-Z-axis ephansi kunikeza umklamo isisekelo sezinto ezingcono, kodwa ikhwalithi yokwenziwa isanquma ukuthi lokho kuthembeka kungafinyelelwa yini ekukhiqizeni.

Ekwenziweni, isidingo sezinto kumele sixhunywe nokubhoboza, ukususwa kwe-desmear, ithusi elingena-electro, i-copper plating, ukubhaliswa kwengqimba yangaphakathi, ukuhlolwa kodonga lwemigodi, kanye nokuhlolwa kokucindezeleka kokushisa uma kudingeka. I-laminate ephansi ye-CTE ayikwazi ukuvala ukwakheka kwemigodi okungekuhle, isilinganiso sobukhulu besici, ithusi elingalingani, noma amanothi e-plating angacacile.

Izilawuli zokukhiqiza ezisekela ukuthembeka kwe-CTE ephansi

• Isilinganiso se-aspect kanye nokubuyekezwa kosayizi wembobo oqediwe
• Ukulawula ukujiya kwethusi okumbozwe ngembobo
• Ngokuklama, indandatho ye-annular, kanye nokuhlolwa kokwehla kwamandla emali
• Ukubhaliswa kwezingqimba zangaphakathi kanye nokulungiswa kwe-lamination
• Ukuhlolwa kwesigaba noma kwesigaba esincane uma kuchazwe
• Ukuhlolwa kokucindezeleka kokushisa noma ukuhlolwa kokuntanta kwe-solder uma kudingeka yikhasimende

Kumabhodi anethusi elisindayo, amandla kagesi aphezulu, noma ukuchayeka ekushiseni okuphindaphindiwe, ukubuyekezwa kwezinto kungase kuhlobane namasu okuphatha ukushisa kwe-PCB . Ukwakheka kokushisa kanye nokulawulwa kwe-CTE akuzona izihloko ezifanayo, kodwa zivame ukuhlangana kumkhiqizo ofanayo onokwethenjelwa okuphezulu.

Ukulawulwa Okuphansi Kwe-CTE FR-4 Kwamabhodi Anezibalo Eziphezulu

Ukulawulwa kwe-CTE FR-4 stackup ephansi kubalulekile ngoba ukuthembeka kwezingqimba eziningi kuncike ekwakhiweni okugcwele, hhayi nje igama le-laminate. Ubukhulu be-core, ukukhetha kwangaphambili, okuqukethwe kwe-resin, isitayela sengilazi, ukusatshalaliswa kwethusi, izinkomba, ubukhulu obuqediwe, kanye nomjikelezo we-lamination konke kuthinta ibhodi eliqediwe.

Kumabhodi anenani eliphezulu, i-stackup kufanele ivunyelwe ngaphambi kokusebenzisa i-CAM tooling. Uma kudingeka i-impedance elawulwayo, ubukhulu be-dielectric kanye namanani e-Dk kufanele afaniswe nochungechunge lwezinto ezikhethiwe kunokuba kulinganiswe kusukela ekuqageleni kwe-FR-4 okujwayelekile.

Idatha ye-stackup okufanele ilungiswe ngaphambi kokusebenzisa i-CAM tooling

• Uchungechunge lwezinto eziyinhloko kanye nolwe-prepreg
• Ukujiya kwebhodi okuqediwe kanye nokubekezelelana
• Isisindo sethusi ngesendlalelo kanye nesidingo sethusi esiqediwe
• Ubukhulu be-dielectric phakathi kwezingqimba zesiginali nezendlalelo zokubhekisela
• Inhloso yokuvimbela, ukubekezelelana, kanye nesidingo sekhuphoni
• Ukubopha okulandelanayo, okungcwatshwe nge-, noma okungaboni nge-blind via izidingo

Uma ukulawulwa kwe-impedance kuyingxenye yephrojekthi, izinto ze-Low CTE FR-4 kufanele zibuyekezwe kanye nokulawulwa kwe-impedance ye-PCB . I-stackup ethembekile ngokomshini kodwa engahambisani nethebula le-impedance isengadala ukubambezeleka kokukhiqiza noma ukungalingani kukagesi ngemva kokwenziwa.

I-FR-4 ejwayelekile vs i-CTE ephansi FR-4 yamaphrojekthi e-PCB abalulekile nokuthembeka

Lokhu kuqhathanisa kuyasiza lapho umdwebo, i-AVL, irekhodi lokufaneleka, noma uhlelo lokuthembeka ludinga i-Low CTE FR-4 futhi ithimba lephrojekthi lidinga ukuqonda ukuthi leso sidingo sithinta kanjani ukutholakala, ukwenziwa, ukuhlanganiswa, ukuhlolwa, izindleko, kanye nesikhathi sokuhola. Akufanele kusetshenziswe ukuthethelela ukushintshwa kwezinto ezingavunyelwe.

Ukuqhathanisa kuyasiza nalapho ikhasimende livumela okulinganayo okuvunyiwe. Kuleso simo, izinto ezilinganayo kufanele zihlolwe ngokuqhathanisa namaphepha edatha angempela, izidingo ze-stackup, imithetho yokuvunyelwa kwamakhasimende, kanye nomlando wokukhiqiza. Imibuzo yezindleko nokutholakala kufanele iphathwe njengengxenye yokubuyekezwa kobunjiniyela okufanayo, ingahlukaniswa nenqubo yokuvunyelwa kwezinto.

Ukuqhathaniswa kobunjiniyela kokuvunyelwa kwezinto ezibonakalayo kanye nengozi yokukhiqiza

I-CTE FR-4 ephansi ayidingeki ngokuzenzakalelayo kuyo yonke i-PCB. Iba wusizo lapho ingozi yomkhiqizo ivumela ukulawula okuqinile kokunwetshwa, ukucindezeleka kwemigodi ehlanganisiwe, ukujikeleza kokushisa, kanye nokuvumelana kokukhiqiza okuphindaphindiwe. Uma ingxoxo imayelana kakhulu nokucindezela kwezindleko ezijwayelekile ze-FR-4 kunezidingo zokuthembeka, ithimba lokuthenga lingabuyekeza futhi ukwenyuka kwezindleko ze-PCB ze-FR-4 ukuze lihlukanise amanani emakethe ekukhethweni kwezinto zobunjiniyela.

Abahlinzeki be-Laminate ye-CTE FR-4 ephansi kanye nokulawulwa kwezinto ezivunyiwe

Ukuthenga i-PCB yangempela akuvamile ukuphela emushweni othi “Low CTE FR-4.” Izinhlelo eziningi ze-B2B zidinga umhlinzeki ogunyaziwe, uchungechunge lwe-laminate oluqanjwe ngegama, ishidi lokusika le-IPC, i-AVL yamakhasimende, noma umthetho wokuvunyelwa kwezinto ezilinganayo. Ifektri ye-PCB kufanele ilandele lowo mthetho lapho ithola i-laminate futhi ilungiselela ukukhiqizwa.

I-Highleap Electronics ingakha ngezinto ezicacisiwe ngamakhasimende noma ezivunyelwe ngamakhasimende ze-Low CTE FR-4. Izinto ngokwazo zihlinzekwa ngabakhiqizi be-laminate abafanelekayo, kuyilapho inqubo yokwenziwa nokuhlanganiswa kwe-PCB ilawulwa yiphakheji yokukhiqiza, amanothi okudweba, i-stackup, kanye nezidingo zekhwalithi.

Imindeni yezinto ezibonakalayo ezixoxwa ngayo kumaphrojekthi e-low-CTE FR-4

Izingxoxo ze-FR-4 ezine-CTE ephansi noma ezinokwethenjelwa okuphezulu zingafaka izinto ezivela kubahlinzeki abafana ne-Isola, Shengyi, ITEQ, Kingboard, Nan Ya, EMC, Panasonic, Ventec, kanye nabanye abakhiqizi abafanelekayo. Izibonelo ezivame ukuxoxwa ngazo kumaphrojekthi e-FR-4 anokwethenjelwa okuphezulu zifaka phakathi i-Isola 370HR PCB , i-Isola FR408HR, izinto ze-Shengyi S1000-2M PCB , i-ITEQ IT-180A , i-Kingboard KB-6167F, i-Nan Ya NP-175F, kanye namabanga afanayo avunyiwe. Ukukhetha okuqondile kufanele kulandele umdwebo wamakhasimende, i-AVL, i-stackup, imfuneko kagesi, inhloso yokuthembeka, kanye nokutholakala kwezinto.

• Uchungechunge lwezinto ezichazwe ngamakhasimende kanye nohlu lwabathengisi oluvunyiwe
• Ukubuyekezwa kwezinto ezilinganayo kuphela ngemvume yamakhasimende
• Ukutholakala okuyisisekelo nokwangaphambi kokulungiswa kobukhulu obudingekayo
• Uhlobo lwefoyili yethusi, isisindo sethusi, kanye nezinketho zesitayela sengilazi
• Isitifiketi sezinto ezibonakalayo, isitatimende sokuthobela imithetho, noma izidingo zokulandelela

Uma iphrojekthi isivele idlulile ekuqinisekisweni ngochungechunge olulodwa lwezinto, ukushintshela kwenye into ene-CTE ephansi kufanele kuphathwe njengesinqumo sobunjiniyela. Ngisho noma zombili izinto zichazwa njenge-Low CTE FR-4, kungenzeka zingabi ne-Dk efanayo, i-Df, okuqukethwe kwe-resin, ukugeleza kwe-prepreg, ukuziphatha kokubhoboza, izinketho ze-copper foil, noma isikhathi sokuhola. Ekwakhiweni okusekelwe ku-Kingboard, amakhasi ezinto eziseduze njenge- KB-6160 PCB laminate kanye ne -KB-6165 PCB laminate angasekela ukuqhathaniswa kwezinto zangaphakathi ngaphandle kokufaka esikhundleni semininingwane evunyelwe yikhasimende.

Umhlangano we-PCB we-CTE FR-4 ophansi kanye nokulawulwa kokucindezeleka kokushisa

I-CTE FR-4 ephansi ivame ukukhethwa ngoba ibhodi elihlanganisiwe kumele lisinde ekusongweni kwangempela kanye nezimo zesevisi. Ngakho-ke, ukuthembeka kwebhodi elingenalutho kanye nokuthembeka kwe-PCBA kufanele kubuyekezwe ndawonye. Ukukhetha okuqinile kwe-laminate kusengenziwa buthaka ukwakheka kwephedi okungekuhle, ukuqeda okungalungile kobuso, ukuvezwa kokugeleza kabusha ngokweqile, ukusatshalaliswa kwethusi okungalingani, noma izidingo zokuhlola ezingacacile.

Kumaphrojekthi e-turnkey PCBA, isidingo sezinto kufanele sibonakale emdwebweni wokwenziwa futhi sifakwe ohlelweni lokuhlanganiswa. I-SMT, ukusonta ngembobo edlulayo, ukusonta okukhethayo, ukufakwa kokufakwa kwe-press-fit, ukumboza okuvumelanayo, kanye nokuhlolwa kokugcina konke kungasebenzisana nezinto zebhodi kanye ne-stackup. Uma amakhasimende edinga ibhodi elingenalutho kanye nokuhlanganiswa okuvela emthonjeni owodwa, iphrojekthi kufanele ihlelwe ngezinsizakalo zokuhlanganiswa kwe-PCB esikhundleni sokuphatha i-PCBA njengesengezo esiphuze ngemva kokwenziwa.

Ukuhlolwa kokuhlanganiswa kwamabhodi e-Low CTE FR-4 acindezelwe ukushisa

• Iphrofayili yokugeleza kabusha okungenalo umthofu kanye nenani lemijikelezo yokushisa
• Ama-BGA amakhulu, izixhumi, amadivayisi kagesi, kanye nezingxenye ezinokushisa okuphezulu
• Umklamo wephedi, ukuvulwa kwemaski ye-solder, i-via-in-pad, kanye nokukhululeka kokushisa
• Ukukhetha kokuqeda umphezulu njenge-ENIG, isiliva lokucwiliswa, i-OSP, noma i-HASL engenalo i-lead
• Izindawo zokuxhuma ezifakwa ngokucindezela kanye nezidingo zembobo efakwe ipulasitiki
• I-AOI, i-X-ray, i-ICT, ukuhlolwa kokusebenza, noma ukuhlolwa kwezingxenye lapho kudingeka

Uhlelo lokuhlanganisa oluthembeke kakhulu lwakhiwa ngaphambi kokuba ibhodi elingenalutho liqandiswe. Uma izinto zokwakha, ukuqeda ubuso, isakhiwo, isisindo sethusi, kanye nenqubo yokuhlanganisa kubuyekezwa ndawonye, ​​izinkinga ezimbalwa zibuya kamuva njengoba izinkinga zokunamathisela, izinkinga zokuthembeka, noma ubunjiniyela buyaqina.

Izidingo Zesilinganiso Se-PCB Esiphansi se-CTE FR-4 kanye Nemibhalo

Isilinganiso esiwusizo se-Low CTE FR-4 PCB kufanele silinganisele isidingo sangempela sokuthembeka, hhayi nje usayizi webhodi kanye nenani lezingqimba. Ukuthola izinto, i-lamination, ukubhoboza, i-plating, i-impedance, ukuhlanganisa, ukuhlola, kanye nemibhalo konke kungashintsha izindleko kanye nesikhathi sokuhola.

Uma iphrojekthi ifaka amafayela e-Gerber kuphela ngaphandle komdwebo wokwenziwa, kungase kungenzeki ukuqinisekisa ukuthi i-Low CTE FR-4 iyadingeka yini, ukuthi yiluphi uchungechunge lwe-laminate oluvunyelwe, ukuthi ngabe ezinye izinto ziyavunyelwa yini, nokuthi yimaphi amarekhodi okuhlola alindelekile. Le mininingwane kufanele inikezwe ngaphambi kwekhotheshini uma kungenzeka.

Amafayela e-RFQ ayadingeka ukuze kubuyekezwe umkhiqizo onembile

• Amafayela e-Gerber, ODB++, noma i-IPC-2581
• Umdwebo wokwenziwa nge-Low CTE FR-4 material callout
• Umdwebo we-stackup one-core, prepreg, ithusi, kanye nobukhulu obuqediwe
• Uchungechunge lwezinto ezivunyiwe noma umthetho olinganayo owamukelwe
• Ithebula le-impedance elilawulwayo uma kudingeka
• Isisindo sethusi esiqediwe, usayizi wembobo, isilinganiso sesici, kanye nezidingo zokufaka iplati
• Izidingo zokuqeda ubuso kanye nemaski yokusongelwa
• I-BOM, ifayela lokukhetha nokubeka, umdwebo wokuhlanganisa, kanye nemiyalelo yokuhlola ye-PCBA
• Izidingo zesitifiketi, ukulandeleka, ukuhlangana kwesigaba, noma umbiko wokuthembeka
• Inani lesibonelo, ivolumu yokukhiqiza elindelekile, kanye nesikhathi sokulethwa okuqondiwe

Amafayela aphelele avumela ithimba lobunjiniyela ukuthi lihlukanise imikhawulo yangempela yokukhiqiza kumadokhumenti angekho. Ukuze kukhiqizwe okuphindaphindiwe, izinto ezivunyiwe, i-stackup, amanothi enqubo, izidingo zokuhlola, kanye nemibandela yokuhlanganisa kufanele kugcinwe kuhambisana ngaphandle kokuthi ikhasimende livuma ushintsho olulawulwayo. Uma iphakheji yedatha isilungile, yithumele ngefomu lesilinganiso esisheshayo se-Highleap ukuze kukhiqizwe futhi kubuyekezwe ukuhlanganisa.

Imibuzo Evame Ukubuzwa Nge-PCB Ephansi ye-CTE FR-4

Imibuzo engezansi ibhekana nezinkinga ezivamile zobunjiniyela kanye nokuthenga ngaphambi kokuba iphrojekthi ye-Low CTE FR-4 PCB noma i-PCBA idlulele ekucashunweni, ekwakhiweni, noma ekuhlanganisweni.

Kuyini i-Low CTE FR-4?

I-Low CTE FR-4 iyisistimu ye-FR-4 laminate kanye ne-prepreg eyenzelwe ukunciphisa ukwanda kokushisa, ikakhulukazi ohlangothini lwe-Z-axis. Isetshenziswa lapho i-PCB idinga ukuthembeka okungcono kwemigodi edlulayo, i-margin yokuhlanganisa engenalo i-lead, ukusebenza kahle kokujikeleza kokushisa, noma ukuzinza kwezingqimba eziningi kunalokho okunganikezwa yi-FR-4 build ejwayelekile.

Kungani i-Z-axis CTE ibalulekile ekukhiqizweni kwe-PCB?

I-Z-axis CTE ilawula ukuthi ibhodi likhula kangakanani phakathi nobukhulu balo ngesikhathi sokushisa. Lokhu kubalulekile ngoba i-plated ngokusebenzisa izimbobo kanye nama-via kumele isinde ekukhuleni nasekuncipheni ngesikhathi sokushiswa, ukushiswa, kanye nokusebenza kwensimu. Ukwandiswa kwe-Z-axis ephansi kungasiza ekunciphiseni ukucindezeleka emiphongolweni yethusi kanye nokuxhumeka kwengqimba yangaphakathi.

Ingabe i-Low CTE FR-4 ithatha indawo ye-Tg FR-4 ephezulu?

Cha. I-CTE ephansi kanye ne-Tg ephezulu yizinto ezihambisana nokuthembeka, kodwa azifani. Izinto zingakhethwa ngoba zihlanganisa i-Tg ephezulu, i-CTE ephansi, i-Td ephezulu, ukumelana ne-CAF, kanye nokuhambisana kokuhlanganiswa okungenalo i-lead. Ishidi ledatha elikhethiwe kufanele lihlolwe esikhundleni sokuthembela egameni elilodwa elingukhiye.

Ingabe i-Low CTE FR-4 ingathatha indawo ye-FR-4 ejwayelekile?

Ingasetshenziswa uma isidingo sephrojekthi siqinisekisa ushintsho, kodwa ukushintsha kufanele kuvunyelwe yikhasimende. Ukushintsha kusuka ku-FR-4 ejwayelekile kuya ku-Low CTE FR-4 kungathinta i-stackup, i-impedance, ukutholakala kwempahla, izindleko, isikhathi sokuhola, kanye nokufaneleka komkhiqizo.

Yibaphi abahlinzeki be-laminate abanikeza izinketho ze-Low CTE FR-4?

Izinketho ze-FR-4 ezine-CTE ephansi noma ezinokwethenjelwa okuphezulu ziyatholakala kubahlinzeki abakhulu be-laminate njengo-Isola, Shengyi, ITEQ, Kingboard, Nan Ya, EMC, Panasonic, Ventec, kanye nabanye abakhiqizi abafanelekayo. Izinto eziqondile kufanele zilandele umdwebo wamakhasimende, i-AVL, ishidi ledatha, kanye ne-stackup evunyiwe.

Ingabe i-Low CTE FR-4 ifanelekile ukuhlanganiswa kwe-PCB engenalo i-lead?

Amamaki amaningi e-Low CTE FR-4 akhethwa kumaphrojekthi e-PCBA angenawo umthofu, kodwa ukuhambisana kokuhlanganiswa kufanele kuqinisekiswe ngokumelene nezinto ezikhethiwe, i-Tg, i-Td, iphrofayili yokugeleza kabusha, inani lemijikelezo yokushisa, isisindo sokushisa sengxenye, kanye nohlelo lokuhlola.

Yini okufanele ifakwe esicelweni sesilinganiso se-Low CTE FR-4 PCB?

I-RFQ kufanele ifake amafayela e-Gerber noma e-ODB++, umdwebo wokwenziwa, i-callout yezinto ezivunyiwe, i-stackup, ithebula le-impedance elilawulwayo uma kudingeka, isisindo sethusi, ukuqeda kwendawo, izidingo zembobo, okulindelwe ukuhlolwa, ubuningi, isikhathi sokuhola, kanye namafayela okuhlanganisa uma kudingeka ukulethwa kwe-PCBA.

Cela Isibuyekezo Sobunjiniyela be-PCB Esiphansi se-CTE FR-4

Ukukhiqizwa kwe-PCB ye-CTE FR-4 ephansi kusebenza kahle kakhulu uma ukukhethwa kwezinto, ukulawulwa kwe-stackup, ngokuthembeka, ukuhlanganiswa okungenalo i-lead, kanye nemibhalo kuhambisana ngaphambi kokukhiqizwa. I-Highleap Electronics ingasekela ukwakheka kokukhiqiza kwe-prototype, i-pilot, kanye nokuphindaphinda kusetshenziswa izinto ezichazwe ngamakhasimende noma ezivunyelwe ngamakhasimende ze-CTE FR-4 ephansi ezivela kubahlinzeki be-laminate abafanelekayo.

Ukuze uqale isibuyekezo se-Low CTE FR-4 PCB noma i-PCBA, lungisa amafayela akho e-Gerber noma e-ODB++, umdwebo wokukhiqiza, i-stackup, i-callout yezinto ezibonakalayo, ithebula le-impedance, i-BOM, ifayela lokukhetha nokubeka, inani elilindelekile, kanye nanoma yimiphi imibhalo yokuhlola noma yokulandelela edingekayo. Thumela iphakheji ngefomu lesilinganiso esisheshayo se-Highleap ukuze kukhiqizwe futhi kubuyekezwe ukuhlanganiswa.