Pcb ikibaho prototype igice cyumwobo ENIG hejuru ya TG150
Ibisobanuro ku bicuruzwa:
| Ibikoresho shingiro: | FR4 TG150 |
| Ubunini bwa PCB: | 1,6 +/- 10% mm |
| Kubara: | 4L |
| Ubunini bw'umuringa: | 1/1/1 oz |
| Kuvura hejuru: | ENIG 2U ” |
| Mask yo kugurisha: | Icyatsi kibisi |
| Ibara rya silike: | Cyera |
| Inzira idasanzwe: | Pth igice cya mwobo kumpera |
Gusaba
Agaciro ka TG bivuga ubushyuhe bwikirahure (Tg), nikintu cyingenzi kugirango ubushyuhe bwumuriro hamwe nubushyuhe bwibibaho bya PCB.Ikibaho cya PCB gifite indangagaciro zitandukanye za TG zifite imiterere itandukanye hamwe nibisabwa.Hano hari itandukaniro rusange:
1. Kurenza agaciro ka Tg, niko arushaho guhangana nubushyuhe bwo hejuru bwubuyobozi bwa PCB, bukwiranye na ssenariyo ikoreshwa mubushuhe bwo hejuru, nka elegitoroniki yimodoka, kugenzura inganda nizindi nzego.
2. Iyo agaciro ka Tg kari hejuru, nuburyo bwiza bwubukanishi bwubuyobozi bwa PCB, nibipimo byimbaraga nko kunama, guhindagurika, no kogosha nibyiza kuruta ibyubuyobozi bwa PCB bifite agaciro ka Tg.Irakwiriye kubikoresho nibikoresho bisaba guhagarara neza.
3. Igiciro cyibibaho bya PCB gifite agaciro ka Tg kari hasi ugereranije, kikaba kibereye kubintu bimwe na bimwe bisabwa bifite ubushobozi buke bwo kugenzura no kugenzura ibiciro bikaze, nka elegitoroniki y’abaguzi.Muri make, guhitamo ikibaho cya PCB gikwiranye na progaramu yawe bwite bizafasha kuzamura ubuziranenge bwibicuruzwa no gutuza no kugabanya ibiciro byumusaruro.
4. Ikibaho cyumuzingo wa tg150 cyerekana ikibaho cyumuzunguruko cyatejwe imbere na tg150.TG akenshi isobanura ubushyuhe bwikirahure, bivuze ko ihinduka rihindagurika ryibintu bya amorphous biva mubintu bikomeye kandi "byikirahure" bigahinduka rubberi na viscose mugihe hashyizweho ubushyuhe burenze ubwateganijwe.Mugihe TG ikunze kwerekana munsi yubushyuhe bwubushyuhe bwibintu bya kristaline.
5. Ikirahure cyubushyuhe bwikirahure gikunze kuza nkibintu bitarwanya gutwika, kugoreka / gushonga ku bushyuhe bwihariye.Tg150 PCB ije nkibikoresho bya TG biciriritse kuko igwa hejuru yurwego rwa dogere selisiyusi 130 kugeza kuri dogere selisiyusi 140 nyamara munsi ya dogere selisiyusi 170 ihwanye cyangwa irenga.Nyamuneka menya ko hejuru ya TG ya substrate (mubisanzwe epoxy), niko ihagarara ryumwanya wacapwe.
Ibibazo
Ubushyuhe bukenewe kugirango PREPREG ikomere bigomba gukoreshwa bitarenze FR4 Tg kugirango ubungabunge PCB.Ubusanzwe FR4 Tg iri hagati ya 130 - 140 ° C, Tg yo hagati ni 150 ° C naho Tg ndende irenga 170 ° C.
Tg isanzwe iguma hejuru ya 130 ℃ mugihe Tg iri hejuru ya 170 ℃ na Tg hagati ya 150 ℃.Iyo bigeze kubikoresho bya PCBs, Tg yo hejuru igomba gutorwa, igomba kuba hejuru yubushyuhe bwakazi bukora.
Tg150 PCB ije nkibikoresho bya TG biciriritse kuko igwa hejuru yurwego rwa dogere selisiyusi 130 kugeza kuri dogere selisiyusi 140 nyamara munsi ya dogere selisiyusi 170 ihwanye cyangwa irenga.Nyamuneka menya ko hejuru ya TG ya substrate (mubisanzwe epoxy), niko ihagarara ryumwanya wacapwe.
Ikintu cyingenzi cyo gusuzuma niba ukoresha ibikoresho 150 cyangwa 170 Tg PCB nubushyuhe bwakazi.Niba ari munsi ya 130C / 140C, noneho Tg 150 ibikoresho nibyiza kuri PCB yawe;ariko niba ubushyuhe bwakazi buri hafi 150C, ugomba rero guhitamo 170 Tg.
Uburebure bwa Tg PCB burimo sisitemu ya resin yagenewe kwihanganira kugurisha ibicuruzwa bitarimo amasasu kandi bigafasha imbaraga za mashini murwego rwo hejuru, ubushyuhe bukabije.Ibisigarira bivuga ikintu cyose gikomeye cyangwa semisolide kama gikoreshwa muri plastiki, varike, nibindi.
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