Koj tau pom cov lus hais. Ib tug ob- txheej qauv qauv rau ib lub cuab yeej hnav tau rings li peb npaug ntawm tus nqi ntawm cov khoom sib npaug. Ua ntej koj thawb rov qab rau cov chaw tsim khoom, nws yuav pab kom nkag siab qhov twg tus nqi hwm los ntawm. Cov lus teb luv luv yog qhov hloov pauv PCB tus nqi cuam tshuam txog kev xaiv cov khoom siv, cov txheej txheem nyuaj, thiab cov txiaj ntsig cuam tshuam ntawm kev ua haujlwm nrog nyias, qhov ntev tsis ruaj khov dielectrics.
Ntawm CSNT-EMS hauv Dongguan, peb tsis tu ncua taug kev pab pawg engineering los ntawm kev faib cov nqi rau nyias - cov rooj sib tham hauv Circuit Court. Kev sib tham feem ntau pib nrog cov khoom siv hauv paus.
Cov Khoom Siv Tseem Ceeb: FCCL Nqe Dynamics
Flexible tooj liab clad laminate (FCCL) raug nqi ntau dua FR4 rau ob qho laj thawj. Ua ntej, polyimide (PI) resin systems yog inherently kim tshaj li cov epoxy blends siv nyob rau hauv cov qauv nruj boards. Qhov thib ob, FCCL cov neeg muag khoom tuav cov ntim qis, uas ua rau cov nqi qis dua.
Ib qho kev qhia tshwj xeeb zoo li Panasonic R-F777 PI-raws li FCCL nyob rau hauv 50-micrometer thickness rau hloov pauv PCB kev tsim kho tau nce siab tshaj qhov sib npaug - hnyav FR4. Thaum koj tus tsim hu rau R-F775 nrog tsawg profile (VLP) tooj liab rau 0.1 hli kab dav dav, tus nqi kauj ruam tseem steeper vim VLP tooj liab yuav tsum tau tswj cov electrodeposition ntau meej.
Yog tias koj lub rooj sib txoos yuav nqa siab - cov cim zaus, koj tuaj yeem hais qhia DuPont Pyralux AK, uas muaj DK 3.4 thiab Df 0.004 rau kev tswj hwm impedance. Qhov kev ua tau zoo los ntawm tus nqi: Pyralux AK feem ntau raug nqi 40 txog 60 feem pua ntau tshaj li tus qauv PI FCCL.
PET- raws li cov khoom siv PCB hloov pauv tau zaum ntawm qhov kawg ntawm tus nqi qis tab sis tsuas yog ua haujlwm rau cov laug cam uas tsis pom qhov kub thiab txias. PET-raws li kev sib dhos yuav raug nqi 20 mus rau 30 feem pua ntawm cov khoom sib npaug sib npaug, uas ua rau nws txaus nyiam rau cov ntawv thov ib leeg - ib sab LED.
FCCL cov ntaub ntawv tus nqi sib piv daim ntawv los ntawm substrate hom
Txheej Txheem Tus Nqi Tsav Tsheb hauv Nyias -Circuit Manufacturing
Peb cov txheej txheem txheej txheem suav rau qhov sib txawv ntawm tus nqi loj tshaj plaws ntawm cov khoom siv tau yooj yim thiab nruj PCB.
Rau kev hloov pauv PCB ntau lawm, npog lamination xav tau cua sov thiab siab thoob plaws thaj tsam ntawm pawg thawj coj saib. Taiflex FHK0515 halogen-dawb coverlay xav tau 170 mus rau 180 degrees Celsius thiab tswj siab rau daim ntawv cog lus yam tsis muaj voids. Cov kauj ruam no ntxiv 15 mus rau 25 feem pua ntawm cov nqi board piv rau lub rooj tsavxwm nruj uas tsis muaj kev sib txuas ntxiv.
Nyias FPC kev tsim kho xav tau kev tuav nruj dua thoob plaws hauv cov kab ntau lawm. Cov ntawv ntawm cov khoom siv dielectric wrinkle yooj yim thiab tuaj yeem ncab yog rub ntawm cov ces kaum tsis raug. Cov neeg tsim khoom yuav tsum khiav cov laug cam ntawm qeeb qeeb thiab feem ntau siv cov khoom siv tshwj xeeb kom muaj kev ruaj ntseg ntawm qhov ntev thaum etching thiab plating.
Kev pov thawj zoo rau FPC cov rooj sib txoos suav nrog kev sim dynamic flex ib IPC-TM-650 Txoj Kev 2.4.9.1. Chav Kawm 3 sib dhos rau cov cuab yeej kho mob yuav tsum muaj sia nyob 100,000 flex cycles ntawm 0.3 txog 0.8 mm khoov vojvoog. Kev khiav qhov kev xeem ntawd ntxiv sijhawm tshuaj xyuas thiab nqi.
Cov txheej txheem khiav daim duab qhia txog cov txheej txheem lamination thiab flex test theem
Nto Finish Tus Nqi Hierarchy
ENIG ntawm nyias nyias PCB kev tsim kho feem ntau raug nqi ntau dua li ntawm cov laug cam vim tias cov txheej txheem nyias nyias yuav tsum muaj kev tswj xyuas nruj dua kom tsis txhob muaj kev sib ntaus sib tua thaum lub sij hawm plating da dej. Nickel thickness khiav 3 mus rau 6 micrometers thiab kub ntawm 0.05 txog 0.125 micrometers. Cov txheej txheem ntxiv 8 mus rau 12 feem pua rau cov nqi board.
OSP yog qhov kev lag luam zoo tshaj plaws tab sis tsuas yog ua haujlwm thaum lub rooj tsavxwm tau dhau los ua ib qho rov qab los yog tes sib dhos. Yog tias koj daim ntawv qhia cov khoom lag luam suav nrog ntau theem sib dhos, OSP yuav tsis muaj sia nyob ntawm qhov raug thermal.
Rau cov PCB hloov tau yooj yim nrog cov ntiv tes kub sib cuag, tawv kub plating tsav cov nqi siab tshaj plaws vim lub sij hawm plating ntxiv uas xav tau rau cov nyiaj tso nyiaj ntau dua. Qhov kev ua tiav no yog tshwj tseg rau cov laug cam nrog ZIF txuas lossis lwm tus phooj ywg- thiab - cov kev cai tsis sib haum xeeb.
Koj tuaj yeem tswj tau dab tsi: Tsim cov kev xaiv uas txo tus nqi
Qee qhov kev txiav txim siab tsim kom nyias - tus nqi hluav taws xob los ntawm kev sib tw. Rau ib qho flex PCB tsim, qhia qhov dav tshaj plaws thiab qhov sib nrug ntawm koj daim ntawv thov tuaj yeem zam tau. Txhua 25-micrometer txo qis hauv qhov tsawg kawg nkaus geometry nruj cov txheej txheem qhov rais thiab nce cov nqi seem. Rau cov qauv tsim PCB hloov tau, siv PI tsuas yog qhov twg lub rooj tsavxwm yuav ua tau tiag tiag. Cov ntu ntu tuaj yeem siv qee zaum siv PET tsis tshua muaj nqi lossis txawm tias tus qauv FR4 hauv cov qauv nruj-flex hybrid.
Rau cov qauv ntim, kev siv vaj huam sib luag tseem ceeb tshaj qhov kev xaiv khoom. Ib lub rooj tsavxwm 10-los-10 centimeter uas haum 4-up ntawm 500-by-500 millimeter vaj huam sib luag nqi tsawg dua ib daim dua li tib lub rooj tsavxwm ntawm 1-up ntawm 250-los-250 millimeter vaj huam sib luag.
Peb tau pab pawg engineering txiav lawv cov qauv PCB hloov pauv tau los ntawm 25 txog 35 feem pua los ntawm kev tsim kho kom zoo ib leeg. Rau cov haujlwm yooj yim PCB, qhov tseem ceeb yog koom nrog koj cov chaw tsim khoom thaum ntxov ntawm cov txheej txheem, tsis yog tom qab Gerbers khov.
