I-ITEQ IT-180A: High-Tg PCB Laminate Technical Guide

I-ITEQ IT-180A iyi -epoxy laminate enemisebenzi eminingi ehlukahlukene eyenziwe nge-Tg ephezulu , eqiniswe nge-phenolic eyenzelwe ukusetshenziswa kwe-PCB edinga ukushisa. Njengoba izinga lokushisa lokushintsha kwengilazi lingu-175°C (DSC), i-Z-axis CTE ephansi, ukumelana ne-CAF okuqinisekisiwe, kanye nokuhambisana kokuhlanganiswa okungenalo i-lead, i-IT-180A isebenza njengesisekelo esithembekile samabhodi anezingqimba eziphakeme, izinhlangano ze-BGA, imiklamo yethusi esindayo, kanye nezinqubo zokubopha ezilandelanayo ezisetshenziswayo zezimoto, ze-telecom, kanye nezeseva.

I-ITEQ IT-180A Imininingwane Yobuchwepheshe

Ithebula elilandelayo lifingqa amapharamitha ayisihluthulelo avela kudathabhethi esemthethweni ye-ITEQ IT-180A . Lawa manani abalulekile ekwakhiweni kwe-stackup, ukuhlaziywa kobuqotho besignali, kanye nokufaneleka kokuthembeka.

Kungani Khetha i-ITEQ IT-180A Yedizayini Yakho ye-PCB

Izicelo Eziqondisiwe

I-IT-180A ifanela imiklamo edinga ukuqina kokushisa kanye nokuqina kobukhulu: ama-PCB anezingqimba eziningi (izingqimba ezingu-8+), izakhiwo ze-BGA kanye ne-HDI ezicijile, amabhodi ethusi asindayo (3oz+), ama-ECU ezimoto (alinganiswe ngegumbi lenjini), ama-telecom backplanes, kanye nezinhlelo zeseva/isitoreji sedatha. Isici sayo sokuvimbela i-UV siqinisekisa futhi ukuhambisana ne-AOI kanye nezinhlelo zokubeka optical.

I-Thermal Performance Value

I-175°C Tg kanye ne-Z-CTE ephansi kunciphisa ukucindezelwa kwe-interlayer ngesikhathi sokugeleza kabusha okunganamthofu (ukuphakama okungu-260°C) nemijikelezo yokusebenza kabusha. Njengoba i-T260 idlula amaminithi angu-60, i-IT-180A imelana nohambo olushisayo oluningi ngaphandle kwe-delamination—okubalulekile ekwakheni okulandelanayo kwe-lamination lapho izendlalelo zangaphakathi zithole ukuchayeka okuphindaphindiwe kokushisa.

Ukuthembeka Kagesi

A Dk ka-~4.1 ku-10GHz kanye ne-Df yokungu-~0.016 isikhundla i-IT-180A njengento ekwazi ukusebenza nge-mid-frequency. Nakuba ingahloselwe iziphetho zangaphambili ze-millimeter-wave RF, idlula i-FR-4 ejwayelekile ezinhlelweni zokusebenza ezifika kuma-GHz ambalwa, iyenze ifanelekele idijithali ephakathi nesivinini, isifunda sokusekela i-radar yezimoto, kanye nezixhumi ezixhumene nesivinini esiphezulu.

Nge-Hole kanye Ne-Via Integrity

Ukunwetshwa kwe-Z-axis ephansi kunciphisa ukuqhekeka kwemiphongolo kanye nokuphakanyiswa kwephedi kuzimbobo ezigcwele. Ukumelana ne-CAF kuvikela ngokuqhubekayo ekufudukeni kwe-electrochemical ekumineni okuphezulu ngezinkambu, kunweba impilo yesevisi ezindaweni ezinomswakama noma ezishisayo.

Ukucatshangwa Kwedizayini ye-ITEQ IT-180A

Lamination kanye Pre-Bake

Ngemva kokwelashwa nge-oxide (emnyama noma ensundu), bhaka izingqimba zangaphakathi ku-120°C okungenani imizuzu engu-40 ukuze ukhiphe umswakama omuncwe. Amanzi ayizinsalela adala i-delamination ebangelwa isitimu ngesikhathi sokucindezela. Gcina ama-prepreg endaweni elawulwayo (<20°C, <50% RH) futhi uvumele ukujwayela kwamahora angu-12 ngaphambi kokubeka.

Ukubhoboza kanye ne-Desmear

I-IT-180A ibhoboza ngokuhlanzekile ngezingcezu ezijwayelekile ze-carbide. Ngezitaki ze-high-layer ne-heavy-copper, nciphisa ubude besitaki (iphaneli engu-1 yezendlalelo ezingu-≥8) futhi uxhumane nomthengisi wakho wokubhoboza ngokuphakelayo/ukuthuthukisa isivinini. Amapharamitha we-Desmear ahlukile ku-FR-4 ejwayelekile—izilungiselelo ezijwayelekile zingase zibe ngaphansi kwe-resin. Hlanganyela nomhlinzeki wakho wekhemistri ukuze ulungise imijikelezo ye-permanganate noma ucabangele ukudlula okuphindwe kabili kwe-desmear.

Ukuhambisana Nokugeleza Kabusha Okuholayo

Okubalulekile kudlula ukugeleza kabusha okungaholela ku-260°C ngokwezidingo ze-IPC J-STD-020 ngayinye. I-T260 >60 min kanye ne-T288 >20 min iqinisekisa ukuqina ngokumelene namaphrofayili ashisayo anamandla. Irekhodi lokushisa eliphakeme kakhulu, isikhathi esiphezulu-i-liquidus, namazinga erempu amarekhodi okusebenza okufaneleka.

Umzila Wesiginali Wemvamisa Ephakeme

Amanani e-IT-180A e-Dk/Df asekela umzila we-radar baseband we-radar wejubane eliphezulu wedijithali kanye nezimoto ophakathi nendawo. Ukuze uthole ama-front-ends aqinile e-RF/microwave (ngaphezu kwe-10GHz enesabelomali sokulahlekelwa okufakiwe okuqinile), hlola ama-laminate akhethekile anokulahlekelwa okuncane njenge-laminate ekhethekile enokulahlekelwa okuncane noma uchungechunge lwe-Isola Astra. Ama-stackup e-hybrid—IT-180A wezendlalelo zamandla/zomhlaba kanye nezinto zokulahlekelwa okuncane zelendlalelo zesignali—angalinganisela izindleko kanye nokusebenza.

Imihlahlandlela Yokukhiqiza Nenqubo

Izincomo zesitaki

Kumiklamo yezendlalelo eziyisi-6- kuye kweziyi-8, sebenzisa ama-cores angu-0.1–0.2mm anezitayela zangaphambi kokulungiselela okungu-106/1080/2116 kuye ngokuthimbezeleka okuqondisiwe kanye nokujiya kokugcina. Gcina ukwakhiwa kwe-symmetrical ukuvimbela umnsalo nokusonta. I-ITEQ inikeza ukugeleza kwe-prepreg kanye nedatha yesikhathi se-gel; thintana nalokhu ukuze wenze kahle umjikelezo wabezindaba.

I-Vacuum Lamination

Vacuum izitaki ze-degas imizuzu engu-30 ngaphambi kokufudumeza ukuze ususe umoya ovaleleke. Ingcindezi yokucindezela enconyiwe: 350–400 psi (hydraulic) noma 300–400 psi (vacuum-hydraulic). Izinga lokushisa ukusuka ku-80°C kuya ku-140°C: 1.3–3.0°C/min. Bamba ku-180°C okungenani imizuzu engama-60 ukuze uqinisekise ukwelapheka okuphelele. Phola ku-≤3°C/min ukuze unciphise ingcindezi esele.

Ukuhambisana Kwe-Surface Finish

I-IT-180A ihambisana ne-ENIG, i-HASL (i-lead-free), i-OSP, kanye nokuqedwa kwe-tin/silver yokucwiliswa. Ku-ENIG, qinisekisa okuqukethwe kwe-phosphorus nokujiya kwe-plating ukuze ugweme izinkinga zokugqwala kwe-nickel. Imijikelezo ye-HASL engenamthofu (ibhodwe le-solder elingu-265°C) ingaphakathi kwekhono lokushisa lempahla.

Uhlu Lokuhlola Ukuthembeka

Cela lokhu okulandelayo kumphakeli wakho we-laminate noma ugijime endlini: I-TMA yokuqinisekisa i-Tg, ukuhamba ngebhayisikili okushisayo (–40 ukuya ku-+125°C, imijikelezo engu-500+), ukushaqeka okushisayo (uketshezi ukuya oketshezini), isifutho sikasawoti (nge-IPC-TM-650 2.6.14 ngayinye yezimoto), kanye nokuhlolwa kwe-CAF/85 kwe-CAF (i-R85%). Imiphumela yedokhumenti yamaphakheji okufaneleka kwekhasimende.

I-ITEQ IT-180A vs. Competing High-Tg Materials

Ithebula elingezansi liqhathanisa i-IT-180A ne -Isola 370HR — okunye okucaciswe kabanzi esigabeni se-high-Tg FR-4.

Zombili izinto ezisetshenziswayo zihlangabezana nezidingo ezidingekayo ezishisayo neze-CAF. I-IT-180A inikeza isixazululo esingabizi kakhulu ngokutholakala okuqinile kwesifunda ekukhiqizeni okusekelwe e-Asia. I-370HR ingase ikhethwe lapho iziqu ezikhona noma amaketango atholakala e-US ebaluleke kakhulu. Kuzinhlelo zokusebenza ze-RF ezilahlekelwa kakhulu ngokudlulele, azifaki esikhundleni se-PTFE noma ama-hydrocarbon-ceramic substrates.

Isiphetho

I-ITEQ IT-180A iletha inhlanganisela elinganiselayo ye-Tg ephezulu, ukunwetshwa okuphansi kwe-axis ye-Z, ukumelana ne-CAF, nokuhambisana okungenayo umthofu—okuyenza kube ukukhetha okusebenzisekayo kwezinhlelo zokusebenza ze-PCB ezehlukene, ezithembeke kakhulu. Ivala igebe phakathi kwe-FR-4 ejwayelekile kanye ne-premium low-loss substrates, inikeze onjiniyela indlela engabizi kakhulu eya kukuqina okushisayo ngaphandle kokudela ukukhiqizwa.

imibuzo ejwayelekile ukubuzwa

1. Iyini i-Tg ye-ITEQ IT-180A?
Izinga lokushisa lokushintsha kwengilazi (Tg) lingu-≥175°C uma likalwa nge-DSC nge-IPC-TM-650 2.4.25 ngayinye.

2. Ingabe i-IT-180A ingadlula ukugeleza kabusha okungaholele ku-260°C?
Yebo. Idatha iqinisekisa i-T260>imizuzu engama-60 kanye ne-T288>20 imizuzu, ekhombisa ukubekezelela umhlangano ongaholeli oqinile.

3. Yiziphi izinhlelo zokusebenza ezifaneleke kakhulu i-IT-180A?
Imiklamo ye-BGA ye-Multilayer, amabhodi ethusi esindayo, ama-ECU ezimoto, izindiza ezibuyela emuva ngocingo, kanye nezinhlelo zeseva/isitoreji ezidinga ukwethembeka okuphezulu okushisayo nokumelana ne-CAF.

4. Ingabe i-IT-180A ilungele imiklamo ye-RF yemvamisa ephezulu?
I-IT-180A isekela izinhlelo zokusebenza ze-mid-frequency (kufika kuma-GHz amaningana) ngokulahleka okwamukelekayo. Ngezidingo zama-millimeter-wave noma eziqinile ze-RF front-end, izinto ezikhethekile ezilahlekelwa kancane ziyanconywa.

5. Ingabe i-IT-180A isekela i-lamination elandelanayo?
Yebo. Ukuzinza kwayo okushisayo kanye ne-Z-CTE ephansi kuyenza ikufanelekele i-lamination elandelanayo izinqubo ku-HDI eyinkimbinkimbi kanye nezakhiwo zokwakha.