Taw qhia
Muaj PCBA embedded nyob rau hauv sab nraum zoov machinery, industrial controllers, tej thaj chaw deb sensors thiab kev sib txuas lus terminals feem ntau ntsib drastic kub hloov: freezing lub caij ntuj no ib puag ncig tsawg li -40 degree, thiab kaw txee siab - kub ua hauj lwm tej yam kev mob mus txog 85℃. Kev tsim cov kev daws teeb meem tsis raug yuav ua rau muaj kev pheej hmoo loj heev suav nrog kev nqa lub ncoo, solder sib koom ua ke thiab tsis sib xws teeb liab poob tom qab luv luv - lub sijhawm ua haujlwm ntawm qhov chaw.
Nrog rau xyoo ntawm kev tsim kho PCB kev tsim khoom thiab PCBA turnkey los ua ke kev paub, MX-PCBA's R&D engineering pab pawg tau sau cov ntsiab lus ua tiav ntawm kev ua haujlwm dav - qhov ntsuas kub ntawm kev ntseeg tau tsim cov qauv tshwj xeeb. Cov qauv no muaj txiaj ntsig zoo txhawb qhov kub thiab txias tsis kam ntawm cov khoom siv hluav taws xob thiab pab peb cov neeg siv khoom thoob ntiaj teb txo qis tom qab- muag cov nqi muag khoom rau kev lag luam automation, saib xyuas sensor thiab ntug kev sib txuas lus kho vajtse.
1. Dav -Qhov kub thiab txias PCB Base khoom xaiv
Circuit Court substrate yog lub hauv paus tseem ceeb rau kev dav -kub ruaj khov. Cov qauv txheem FR4 substrates raug kev txom nyem pom tseeb nyob rau hauv qhov txias txias - kub hloov mus. Rau kev lag luam PCBA yuav tsum ua haujlwm ntawm -40℃txog 85 degree, MX-PCBA tsuas yog siv siab TG halogen-free FR4 lossis polyimide (PI) core substrates.
Cov iav hloov pauv kub cov ntaub ntawv muaj qhov txo qis thermal expansion coefficient, zoo heev suppressing board warpage nyob rau hauv huab cua kub jumps. Rau PCBA layouts nrog loj - cheeb tsam hnyav, peb tsim nyog nce cov tub ntxhais phaj thickness los txhawb tag nrho cov neeg kho tshuab qauv, offset lub structural kev nyuaj siab generated los ntawm thermal expansion thiab txias contraction, thiab tsis txhob substrate dabtsi yog khoov deformation nyob rau hauv lub sij hawm ntev - kub cycling.
2. Muaj-Qib Component Matching & Layout Optimization
Qib ntawm cov khoom siv thiab kev npaj cov txheej txheem yog qhov txiav txim siab rau siab - qhov ntsuas kub qis.
Kev xaiv cov khoom siv: Peb tso tseg qis- tus nqi zoo tib yam kua electrolytic capacitors uas sai sai poob qis hauv ultra- qhov kub thiab txias -40℃kev ua haujlwm. Tag nrho cov khoom siv tseem ceeb tau txais tag nrho -ntau qhov dav- qhov kub thiab txias capacitors thiab qib ICs nrog ua tiav -40℃~ 85℃parameter daim ntawv pov thawj kom ruaj khov hluav taws xob ua haujlwm nyob rau hauv qhov kub thiab txias.
Layout tsim cov cai: Hnyav loj - cov khoom loj xws li lub hwj chim modules raug txwv tsis pub muab tso rau ntawm ntug ntawm PCB los tiv thaiv thermal voj voog kev ntxhov siab los ntawm kev tawg cov pob qij txha. Peb khaws cia qhov kev nyab xeeb txaus ntawm cov ntaub qhwv uas nyob ib sab los them rau qhov kev hloov pauv uas tshwm sim los ntawm substrate expansion thiab contraction thaum hloov kub, tshem tawm luv luv -circuit zais kev phom sij.
3. Optimized Solder Alloy & Surface Finishing txheej txheem hauv MX-PCBA los ua ke
Peb kho cov hlau lead- cov qauv dawb solder hom phiaj dav - qhov kub thiab txias muaj xwm txheej. Cov txheej txheem zoo tib yam cov hlau lead- dawb solder yog qhov ua rau qaug zog tawg tom qab rov ua qhov txias thiab kub. MX-PCBA ntxiv cov khoom alloy tshwj xeeb rau cov tshuaj txhuam hniav kom txhim kho kev sib koom ua ke los tiv thaiv- qaug zog thiab tiv thaiv- muaj peev xwm tawg.
Rau kev ua tiav saum npoo, peb ua qhov tseem ceeb ENIG (Electroless Nickel Immersion Gold) es tsis yog HASL. Cov txheej txheej tsis sib luag tsim los ntawm HASL txheej txheem yog ib qho yooj yim los tsim cov microcracks tsis pom nyob rau hauv qhov kub thiab txias alternating ib puag ncig. Thaum lub sij hawm SMT los ua ke, peb cov kab ntau lawm nruj me ntsis calibrates lub reflow kub nkhaus raws li solder cov ntaub ntawv tsis, minimizes internal voids solder pob qij txha, thiab ntxiv dag zog rau kev twb kev txuas stability ntawm pads thiab cov khoom.
4. Cov txheej txheem txheej txheem txheej txheem rau kev tiv thaiv Circuit Court thib ob
Tom qab ua tiav PCBA lub rooj sib txoos, MX-PCBA muab cov kev pabcuam ua haujlwm sib raug zoo nrog rau siab -cov khoom siv silicone lossis parylene. Cov yeeb yaj kiab tiv thaiv ntom ntom cais cov dej noo, plua plav thiab corrosive industrial gas los ntawm Circuit Court. Nws hauv paus daws qhov luv luv -circuit tsis ua hauj lwm muaj feem cuam tshuam los ntawm cov condensation ntawm PCBA nyob rau hauv sab nraum zoov kub- txias alternating ua hauj lwm tej yam kev mob.
Peb cov kws tshaj lij tswj xyuas cov txheej tuab raws li cov khoom siv yuav tsum tau ua, tsis txhob muaj ntau txheej txheej npog precision nti pins thiab cuam tshuam cov teeb liab kev ua haujlwm.
Xaus
Txhawm rau txhim kho kev lag luam PCBA nrog kev ua haujlwm ruaj khov npog -40℃txog 85 degree, kev sib koom ua ke kom zoo yog yuav tsum tau npog cov khoom siv hauv qab, kev xaiv cov khoom, kev tsim qauv, kev siv tshuab thiab kev sib dhos tom qab txheej txheem thoob plaws tag nrho cov txheej txheem tsim thiab tsim khoom.
Thaum mus yuav cov kev pabcuam hauv pawg thawj coj saib xyuas kev lag luam, cov lag luam yuav tsum tau ua ntej cov tuam txhab lag luam uas muaj qhov dav dav - kub PCBA R&D thiab kev tsim khoom loj xws li MX-PCBA, uas tuaj yeem txo qhov ntev - lub sij hawm ntawm - cov khoom siv tsis ua haujlwm thiab txo nqi tag nrho.
