Cov khoom
4 txheej FPC nrog FR4 stiffener hauv 4G module system
| Txheej | 4 txheej flex |
| Board thickness | 0.2 hli |
| Khoom siv | Polymide |
| Tooj thickness | 1 OZ (35 hli) |
| Nto tiav | ENIG Au Thickness 1um;Nws Thickness 3um |
| Min qhov (mm) | 0.23mm ib |
| Min kab dav (mm) | 0.15 hli |
| Min Kab Qhov Chaw (mm) | 0.15 hli |
| Solder Mask | Ntsuab |
| Legend Xim | Dawb |
| Mechanical processing | V-scoring, CNC Milling (routing) |
| Ntim | Anti-static hnab |
| E-test | Flying probe los yog Fixture |
| Kev lees txais tus qauv | IPC-A-600H Chav Kawm 2 |
| Daim ntawv thov | Automotive electronics |
Taw qhia
Lub flex PCB yog ib daim ntawv tshwj xeeb ntawm PCB uas koj tuaj yeem khoov rau hauv qhov xav tau.Lawv feem ntau yog siv rau kev ua haujlwm siab thiab kub kub.
Vim nws cov cua sov ua haujlwm zoo heev, cov qauv siv tau yooj yim yog qhov zoo tagnrho rau cov khoom siv sib txuas.Cov pob tshab polyester zaj duab xis siv los tsim cov flex designs ua cov khoom siv substrate.
Koj tuaj yeem kho cov txheej txheej tooj liab ntawm 0.0001 "rau 0.010", thaum cov khoom siv dielectric yuav nyob nruab nrab ntawm 0.0005 "thiab 0.010" tuab.Tsawg dua kev sib txuas hauv kev tsim qauv yooj yim.
Yog li ntawd, muaj tsawg soldered kev twb kev txuas.Tsis tas li ntawd, cov kab hluav taws xob no tsuas yog siv li 10% ntawm qhov chaw ruaj khov
vim lawv hloov tau yooj yim bendability.
Khoom siv
Cov ntaub ntawv hloov tau yooj yim thiab txav tau yog siv los tsim cov PCBs hloov tau.Nws yooj yim tso cai rau nws tig los yog txav mus yam tsis muaj kev puas tsuaj rau nws cov khoom lossis kev sib txuas.
Txhua feem ntawm flex PCB yuav tsum ua haujlwm ua ke kom ua tau zoo.Koj yuav xav tau ntau yam ntaub ntawv los sib sau ua ke flex board.
Npog Txheej Txheej Substrate
Conductor cab kuj thiab insulating nruab nrab txiav txim siab ua haujlwm ntawm substrate thiab zaj duab xis.Tsis tas li ntawd, lub substrate yuav tsum tau khoov thiab curl.
Polyimide thiab polyester nplooj ntawv feem ntau yog siv nyob rau hauv lub voj voog hloov tau.Cov no tsuas yog ob peb ntawm ntau cov yeeb yaj kiab polymer uas koj tuaj yeem tau txais, tab sis muaj ntau yam ntxiv los xaiv.
Nws yog qhov kev xaiv zoo dua vim yog tus nqi qis thiab zoo substrate.
PI polyimide yog cov khoom siv feem ntau siv los ntawm cov tuam ntxhab.Hom thermostatic resin no tuaj yeem tiv taus qhov kub thiab txias.Yog li melting tsis yog ib qho teeb meem.Tom qab thermal polymerization, nws tseem khaws nws elasticity thiab yooj.Ntxiv rau qhov no, nws muaj cov khoom siv hluav taws xob zoo heev.
Cov khoom siv coj ua
Koj yuav tsum xaiv cov khoom siv hluav taws xob uas hloov hluav taws xob zoo tshaj plaws.Yuav luag txhua qhov hluav taws kub pov thawj hluav taws xob siv tooj liab ua tus thawj coj.
Dhau li ua tus neeg xyuas pib zoo heev, tooj liab kuj tseem yooj yim kom tau txais.Piv nrog rau tus nqi ntawm lwm cov khoom siv hluav taws xob, tooj liab yog kev sib tw.Conductivity tsis txaus rau dissipate tshav kub zoo;nws kuj yuav tsum yog ib tug zoo thermal conductor.Cov khoom siv hluav taws xob hloov tau tuaj yeem ua los ntawm cov khoom siv uas txo cov cua sov uas lawv tsim.
Adhesives
Muaj ib qho nplaum ntawm daim ntawv polyimide thiab tooj liab ntawm txhua lub rooj tsav xwm flex.Epoxy thiab acrylic yog ob lub ntsiab nplaum uas koj tuaj yeem siv.
Cov nplaum nplaum uas muaj zog yuav tsum tau ua rau cov kub kub uas ua los ntawm tooj liab.
