Khoom Description

CovPCBA rau Network Hloovyog architected raws li lub siab -throughput data dav hlau rau enterprise thiab data center networking. Nws koom ua ke ntau -gigabit Ethernet hloov ntaub uas muaj peev xwm tsis muaj - thaiv cov ncej xa mus thoob plaws txhua qhov chaw nres nkoj. Lub rooj tsavxwm nta siab -Speed SerDes txoj kab, qis-latency PHYs, thiab lub zog CPU complex uas khiav cov kev cai, VLAN tswj, thiab QoS cov cai. Advanced fais fab kev tswj circuitry muab ruaj khov, tsis tshua muaj - suab nrov voltage rails rau qhov hloov core thiab nco interfaces. Multi{10}}txheej PCB siv cov khoom siv hluav taws xob tswj tau thiab impedance-matched striplines los khaws cov teeb liab kev ncaj ncees ntawm ntau-gigabit ceev. Kev siv hluav taws xob rov ua dua thiab kev tiv thaiv kub sib pauv yog suav nrog rau kev xa khoom khib nyiab. Kev tswj xyuas kom zoo thermal - cov dab dej kub, thermal pads, thiab airflow-optimized tivthaiv muab tso rau - ua kom muaj kev ua haujlwm tsis tu ncua nyob rau hauv tag nrho cov load. Kev lag luam- qib kev ntseeg tau zoo, xws li txheej txheej txheej thiab txhim kho ESD tiv thaiv, ua rau PCBA no haum rau ob qho tib si huab cua tswj chaw ua haujlwm txee thiab lub Hoobkas hauv pem teb.

PCBA zaub

PCB PCBA Finished Product Assembly OEM Electronic PCBA Board Supplier PCBA for Server Board OEM Controller PCBA Box Building

Ntau lawm thiab Zoo

Peb cov txheej txheem tsim khoom rau cov rooj sib tham ua haujlwm tau zoo ua raws li cov txheej txheem ua tau zoo los lav qhov tsis thaiv cov pob ntawv xa mus thiab 24/7 kev ntseeg tau. Txhua lub Rooj Tswjhwm Saib Xyuas Kev Xeem Hauv Lub Cev (ICT) rau kev txheeb xyuas cov khoom pov thawj thiab kev xeem ua haujlwm tau zoo (FCT) siv cov ntsuas kev sib txuas. FCT validates pob ntawv routing ntawm tus nqi xaim ntawm txhua qhov chaw nres nkoj, VLAN tagging, QoS qhov tseem ceeb, thiab CPU tswj kev sib raug zoo. Txhua tus khub sib txawv siab ceev yog TDR-kuaj rau kev tswj hwm impedance.

Peb siv cov kab SMT siab heev nrog 3D SPI, Automated Optical Inspection (AOI), thiab X-ray rau BGA li. Conformal txheej yog thov inline nrog thickness xyuas. Txhua lub rooj tsavxwm dhau thermal cycling thiab txuas ntxiv burn-in nyob rau hauv simulated tag nrho cov tsheb thauj mus los soj ntsuam cov me nyuam mos tuag.

Peb cov saw hlau muaj xws li kev pom zoo mus sij hawm ntev nrog cov hloov nti thiab cov khoom siv nco, ruaj ntseg cov khoom tseem ceeb. Lub sij hawm ua tus qauv yog 6-8 lub lis piam rau kev txiav txim ntim. Nrog high-precision chaw tso kawm kab thiab mob siab rau network xeem racks, peb muaj peev xwm scalable kom tau raws li loj-scale cov ntaub ntawv chaw xa tawm cov sij hawm thaum ua kom muaj kev lag luam-kev ua tau zoo thiab xa mus raws sij hawm.

Txheej txheem ntau lawm

Kev sib sau ua ke ntawm high-port-count networking boards xav tau qhov tseeb thoob plaws txhua qhov txheej txheem. Solder paste luam ntawv siv hom 4 lossis Hom 5 hmoov nrog nruj SPI (kev tshuaj xyuas cov tshuaj nplaum) kom ntseeg tau tias qhov ntim zoo ib yam ntawm cov nplua-pitch pads rau hloov ICs thiab PHYs. Reflow yog ua nrog lub qhov cub multizone nyob rau hauv cov cua nitrogen, txo oxidation thiab txhim kho ntub dej rau cov khoom loj, thermally loj. BGA qhov kev tso kawm raug txheeb xyuas nrog hauv kab 2D X-ray, thiab cov laug cam xaiv tau txais 3D X-ray rau kev tsom xam tsis muaj dab tsi. Tom qab reflow, ib qho chaw xaiv soldering tuav thru-hole connectors, thaum lub sij hawm tshwj xeeb xovxwm-fit cuab yeej nruab high-speed tawb connectors yam tsis muaj thermal stress. Conformal txheej yog siv los ntawm programmable xaiv txheej neeg hlau; mask tooling tiv thaiv ntug connectors thiab xeem cov ntsiab lus. Vaj huam sib luag depaneling siv routing nrog cov khoom nkag / thaub qab los tiv thaiv burrs. Kev sib dhos zaum kawg ua ke nrog cov heatsinks nrog cov tsav tsheb tswj lub zog, txhim kho cov tuav tuav, thiab txuas EMI shielding kaus poom. Txhua lub rooj tsavxwm tau muab tso rau hauv qhov hluav taws xob hluav taws xob hluav taws xob hluav taws xob nrog lub network tsheb los xyuas qhov kev ua haujlwm thermal thiab kev vibration kam rau ua ua ntej kev tshuaj xyuas zaum kawg thiab ntim khoom.

Q&A

Q: Dab tsi yog qhov teeb meem nyuaj tshaj plaws los ntes hauv kev kub ceev network hloov PCBA, thiab koj yuav ntes nws li cas?

A:Qhov feem ntau insidious defect yogmarginal teeb liab kev ncaj ncees- cov channel uas dhau qhov kev sim ua haujlwm tab sis ua tsis tiav raws li kev tsheb khiav hauv ntiaj teb nrog qhov kub thiab txias. APCBA rau Network Hloovtej zaum yuav qhia me ntsis yuam kev tsuas yog thaum kub siab los yog cov ntaub ntawv tshwj xeeb qauv. Peb ntes qhov no los ntawm kev khiav 100% ntawm cov laug cam los ntawm kev txuas ntxiv hlawv-hauv thaum txhaj cov tsheb nyob thiab saib xyuas CRC yuam kev. Txhua txoj kab kev ua yuam kev raug teeb tsa, thiab lub rooj tsavxwm mus rau qhov tsis ua tiav kev tshuaj ntsuam xyuas rau TDR, lub sijhawm-domain reflectometry, thiab hla ntu.

Q: Koj puas ua kom tsis txhob rov ua haujlwm ntawm phau ntawv no kom ceev, nrawm nrawm?

A:Kev rov ua dua ntawm phau ntawv tsuas yog tso cai rau cov tsis tseem ceeb tsis txaus ntseeg lossis kev puas tsuaj rau txhua yam, tsis txhob nyob ntawm qhov sib txuas ceev ceev lossis BGA Cheebtsam. Reworked boards yog retested nrog tag nrho cov kev ntsuam xyuas. Txawm li cas los xij, peb lub hom phiaj yog xoom rework. Peb ua tiav qhov no los ntawm kev muaj ob kab SMT - thawj kab khiav ntawm qhov nrawm, thaum kab thib ob tsim cov qauv rau kev tshuaj xyuas thawj zaug. Thaum lub qhov rais txheej txheem yog pov thawj ruaj khov, peb kaw tsis.

Q: Koj qhov kev paub dhau los tau qhia koj li cas txog kev tsim rau kev tsim khoom ntawm lub network hloov PCBs?

A:Qhov loj tshaj zaj lus qhia:cais cov high-speed thiab fais fab domains thaum ntxov nyob rau hauv layout. Peb ib zaug tau tsim qhov chaw hloov hluav taws xob hloov lub suab nrov ua ke rau hauv PCIe txoj kab, ua rau kev sib txuas rov qab. Kev kho yuav tsum tau kho dua tshiab PCB. Tam sim no peb tswj hwm thaj chaw khaws cia thiab siv thaj av tshwj xeeb rau txhua lub zog tsheb ciav hlau (core, PHY, nco). Peb kuj qhia meej meej ntawm-stitching qauv kom tswj tau qhov impedance tsawg. Cov kev cai no tau teev tseg hauv peb daim ntawv teev npe DFM sab hauv, thiab txhua qhov kev sib txawv yuav tsum tau kos npe los ntawm kev teeb tsa kev ncaj ncees engineering.