PCB ukukhethwa kwe-substrate

Ukucatshangelwa kokuqala kokukhetha ama-substrates yithempelesha (i-welding nokusebenza), izakhiwo zikagesi, ukuxhumana (izinto zokushisela, izixhumi), amandla ezakhiwo nobukhulu besekethe, njll. Uyacelwa ukuthi ubheke imininingwane elandelayo ukuthola imininingwane:

Dia Umdwebo wokukhetha ongaphansi (umthombo: umthombo “Izidingo Zokuklanywa Kwebhodi Yesekethe Ephrintiwe Yezinto Zobuchwepheshe Zempi”)

Incazelo yebizo

FR-4

UFr-4 yikhodi yekilasi lezinto ezimelana nelangabi, emele okushiwo yinsimbi ngemuva kokuthi isimo somlilo kufanele sikwazi ukucisha ukucaciswa kwezinto, akulona igama elibonakalayo, kodwa isigaba sokwakheka kwezinto.

I-tg / ingilazi lokushisa lokuguqula

Inani le-Tg libhekisa ekushiseni lapho izinto ziguquka ukusuka esimweni esiqinile sengilazi siye esimeni senjoloba esivulekile futhi esiguquguqukayo. Qaphela ukuthi izakhiwo ezibonakalayo ziyashintsha ngaphezu kwe-Tg.

CTI

I-CTI: Inkomba Yokuqhathanisa Yokuqhathanisa, isifinyezo se-Comparative Tracking Index.

Okusho ukuthi: kuyisibonakaliso sokumelana nokuvuza. Esimeni sokufaka i-voltage ebusweni bento evikela, yenza amaconsi e-electrolytic awele ebusweni bomkhiqizo obunjiwe phakathi kwama-electrode, bese uhlola amandla kagesi kuze kungabikho monakalo wokuvuza.

Izinga le-CTI: izinga le-CTI lisukela ku-0 liye ku-5. Uma incane inombolo, kuphakama ukumelana nokuvuza.

PI

I-Polyimide (PI) ingenye yezinto eziphilayo ze-polymer esebenza kahle kakhulu.Ukuphakama kwayo kokushisa okuphezulu kuze kufike ku-400 ℃ ngenhla, ibanga lokushisa lokusetshenziswa lesikhathi eside -200 ~ 300 ℃, okuyingxenye yendawo engekho ebonakalayo yokuncibilika, ukusebenza okuphezulu kwe-insulation, i-103 hz ye-dielectric engaguquki engu-4.0, ukulahleka kwe-dielectric kuphela okungu-0.004 ~ 0.007, okukaF kuH.

CE

(1) I-CE cyanate resin wuhlobo olusha lwezinto ezisebenza ngogesi nezinto zokuvikela, okungenye yezinto ezisemqoka ezibalulekile emkhakheni wezinto zikagesi nobuchwepheshe bokuxhumana be-microwave. Kuyinto enhle ye-resin matrix material ye-radome. Ngenxa yokuzinza kwayo okuhle kokushisa nokushisa, ukumelana okuphansi komugqa okuphansi nezinye izinzuzo, i-CE resin isibe yinto enhle kakhulu yokukhiqiza imvamisa ephezulu, ukusebenza okuphezulu, amabhodi wesifunda aphrintiwe asezingeni eliphakeme; Ngaphezu kwalokho, i-CE resin yinto enhle yokupakisha ye-chip.

(2) I-resin ye-CE ingasetshenziselwa ukukhiqizwa kwezempi, ezezindiza, i-aerospace, izingxenye zokwakhiwa kokuhamba, njengezimpiko, amagobolondo omkhumbi, njll.

(3) I-resin ye-CE inokuhambisana okuhle, futhi i-epoxy resin, i-polyester engagcwalisiwe kanye nokunye ukwenza i-copolymerization kungathuthukisa ukumelana nokushisa nezakhiwo zemishini yalolo daba, kungasetshenziswa futhi ukuguqula ezinye izinhlaka, ezisetshenziselwa ukunamathela, ukumboza, amapulasitiki e-foam ahlanganisiwe izinto zokuxhumana, njll.

(4) CE yinto yokudlulisela enhle enokuhamba okuphezulu nokubonakala okuhle.

PTFE

I-Poly Tetra fluoroethylene (PTFE), eyaziwa kakhulu ngokuthi “ukunamathela okungeyona induku” noma “okulula ukuhlanza okokusebenza”. Le nto inezici zokumelana ne-acid ne-alkali, ukumelana namakhemikhali awuketshezi ahlukahlukene kanye nokushisa okuphezulu.

Ukumelana nokushisa okuphezulu: ukushisa kokusebenzisa isikhathi eside okungama-200 ~ 260 degrees;

Ukumelana nokushisa okuphansi: kusathambile kuma-degree ayi -100;

Ukumelana nokugqwala: uyakwazi i-aqua regia nawo wonke ama-solvents organic;

Ukumelana nesimo sezulu: impilo enhle kakhulu yokuguga yamapulasitiki;

Ukuthambisa okuphezulu: inani eliphansi kakhulu lokungqubuzana kwamapulasitiki (0.04);

Okungabonakali: ukuba nokuncane kakhulu kwangaphakathi kwento eqinile ngaphandle kokunamathela kunoma iyiphi into;

Okungeyona into enobuthi: ukungena emzimbeni; Ukusebenza kahle kukagesi, yiyona nto eyi-C yeklasi yokufaka izinto, ungqimba lwephephandaba lungavimba amandla aphezulu we-1500V; Kubushelelezi kuneqhwa.

Noma ngabe kuyindlela ejwayelekile ye-PCB, noma ifrikhwensi ephezulu, idizayini ye-PCB enejubane elikhulu, ukukhetha i-substrate ulwazi olubalulekile, kudingeka sifunde kahle. (I-PCB Ehlanganisiwe).