Imikhiqizo
4 ungqimba lwe-FPC ene-FR4 stiffener ohlelweni lwemojula ye-4G
| Izendlalelo | 4 izingqimba eziguqukayo |
| Ukujiya kwebhodi | 0.2mm |
| Okubalulekile | I-Polymide |
| Ukujiya kwethusi | 1 OZ(35um) |
| I-Surface Qeda | ENIG Au Ukujiya 1um;Ubukhulu obungu-3um |
| Imbobo encane(mm) | 0.23mm |
| Ububanzi Bolayini Obuncane(mm) | 0.15mm |
| Isikhala somugqa omncane(mm) | 0.15mm |
| I-Solder Mask | Okuhlaza |
| Umbala Wenganekwane | Emhlophe |
| Ukucutshungulwa komshini | I-V-scoring, CNC Milling(umzila) |
| Ukupakisha | Isikhwama se-Anti-static |
| I-E-test | I-Flying probe noma i-Fixture |
| Izinga lokwamukela | IPC-A-600H Ikilasi 2 |
| Isicelo | Ugesi wezimoto |
Isingeniso
I-PCB eguquguqukayo iwuhlobo oluhlukile lwe-PCB ongakwazi ukugoba lube yisimo osifunayo.Ngokuvamile zisetshenziselwa ukuminyana okuphezulu nokusebenza kwezinga lokushisa eliphezulu.
Ngenxa yokumelana nokushisa okuhle kakhulu, umklamo oguquguqukayo ulungele izingxenye zokufakwa kwe-solder.Ifilimu ye-polyester esobala esetshenziswa ekwakheni imiklamo eguquguqukayo isebenza njenge-substrate material.
Ungalungisa ukujiya kongqimba lwethusi ukusuka ku-0.0001″ kuye ku-0.010″, kuyilapho okubalulekile kwe-dielectric kungase kube phakathi kuka-0.0005″ no-0.010″ obukhulu.Izixhumanisi ezimbalwa kumklamo oguquguqukayo.
Ngakho-ke, kukhona ukuxhumeka okudayisiwe okumbalwa.Ukwengeza, lezi zifunda zithatha kuphela i-10% yesikhala sebhodi esiqinile
ngenxa yokugoba kwabo okuguquguqukayo.
Okubalulekile
Izinto eziguquguqukayo nezinyakazayo zisetshenziselwa ukwakha ama-PCB aguquguqukayo.Ukuguquguquka kwayo kuyivumela ukuthi iguqulwe noma ihanjiswe ngaphandle kokulimala okungenakulungiseka ezingxenyeni zayo noma ekuxhumekeni.
Yonke ingxenye ye-PCB eguquguqukayo kufanele isebenze ndawonye ukuze isebenze kahle.Uzodinga izinto ezihlukahlukene ukuze uhlanganise ibhodi eliguqukayo.
I-substrate ye-Cover Layer
I-conductor carrier kanye ne-insulating medium inquma umsebenzi we-substrate nefilimu.Ukwengeza, i-substrate kufanele ikwazi ukugoba nokugoqa.
Amashidi e-Polyimide ne-polyester avame ukusetshenziswa kumasekethe aguquguqukayo.Lawa ambalwa nje kwamafilimu amaningi e-polymer ongawathola, kodwa maningi ongakhetha kuwo.
Kungcono ukukhetha ngenxa yezindleko eziphansi kanye ne-substrate yekhwalithi ephezulu.
I-PI polyimide iyinto esetshenziswa kakhulu abakhiqizi.Lolu hlobo lwe-thermostatic resin lungamelana nezinga lokushisa elibi kakhulu.Ngakho ukuncibilika akuyona inkinga.Ngemuva kwe-polymerization eshisayo, isagcina ukunwebeka nokuguquguquka kwayo.Ngaphezu kwalokhu, inezindawo ezinhle kakhulu zikagesi.
Izimpahla Zomqhubi
Kufanele ukhethe i-elementi ye-conductor edlulisa amandla kahle kakhulu.Cishe wonke amasekhethi avikela ukuqhuma asebenzisa ithusi njengomqhubi oyinhloko.
Ngaphandle kokuba umqhubi omuhle kakhulu, ithusi nalo kulula ukulithola.Uma kuqhathaniswa nenani lezinye izinto zokuqhuba, ithusi liyimali ethengiswayo.I-Conductivity akwanele ukuqeda ukushisa ngokuphumelelayo;kufanele futhi kube umqhubi omuhle we-thermal.Amasekhethi aguquguqukayo angenziwa kusetshenziswa izinto ezinciphisa ukushisa ezikukhiqizayo.
Izinamathiselo
Kukhona okunamathelayo phakathi kweshidi le-polyimide nethusi kunoma yiliphi ibhodi lesifunda eliguquguqukayo.I-epoxy ne-acrylic yizinamathiselo ezimbili eziyinhloko ongazisebenzisa.
Ama-adhesive aqinile ayadingeka ukuze kuphathwe izinga lokushisa eliphezulu elikhiqizwa ngethusi.
