Txheej Txheem Cai

Nrhiav Teem Tseem Ceeb

Qhov ua tsis tiav thiab tej yam kev so. Nws yog qhov tseeb ntawm lub neej thiab kev tsim vaj tsev. Qee yam kev tiv thaiv tsis muaj peev xwm yuav zam tau los ntawm kev tsim cov qauv zoo, tab sis ntau yog tawm ntawm tes ntawm cov tsim qauv. Tshawb nrhiav kev tiv thaiv thiab vim li cas tej zaum yuav ua tsis tau zoo yog thawj kauj ruam los kho qhov tsim kho thiab ua rau kom muaj kev ruaj ntseg ntawm cov txheej txheem uas tau ntsib teeb meem.

Yuav Ua Li Cas Cheeb Tsam

Muaj ntau qhov laj thawj uas vim li cas thiaj ua tsis tiav. Qee qhov kev ua tiav yog qeeb thiab xiam ib qho chaw uas muaj lub sij hawm los txheeb xyuas cov khoom thiab hloov nws ua ntej nws tsis tiav thiab cov cuab yeej poob qis. Lwm yam kev kub ntxhov yog ceev ceev, tsausmuag, thiab tsis npaj txhij, txhua yam uas tau sim rau thaum lub sijhawm xeem ntawv pov thawj khoom. Qee yam ntawm cov txheej txheem ntau tshaj plaws rau cov khoom tsis muaj xws li:

• Tshaj li tam sim no
• Tshaj muaj zog
• Tshaj kub
• Txuam nrog tsis raug
• Hloov chaw ua haujlwm
• Manufacturing defect
• Mechanical poob siab
• Txhua yam kev ntxhov siab
• Hlawv
• Kev puas tsuaj
• Ntim
• Kev Sib Txuas
• Laus
• Cascading tsis ua hauj lwm
• Corrosion
• Rusting
• Oxidizing
• Thermal khiav tawm
• Xoob kev sib txuas
• ElectroStatic Discharge (ESD)
• Hluav taws xob ntxhov siab
• Phem tsim kev phem

Cov kev ua tiav ntawm lub cev tsis ua raws li kev sib raug zoo. Nyob rau hauv lub neej thaum ntxov ntawm ib qho kev siv hluav taws xob, kev ua tsis tiav yog ntau dua thiab lub sij hawm uas tsis ua hauj lwm poob thaum lawv siv. Yog vim li cas rau qhov poob rau hauv cov nqi tsis ua hauj lwm yog tias cov khoom uas tau ntim, phom, thiab kev tsim kho tsis xws luag tsis dhau li ntawm feeb los yog cov sij hawm ua ntej siv lub cuab yeej. Qhov no yog vim li cas ntau lub tuam txhab muaj ntau lub sij hawm kub hnyiab hauv lub sijhawm rau lawv cov khoom. Qhov kev sim yooj yim no tshem tawm cov sij hawm qhov phem tivthaiv tau los ntawm kev tsim kev lag luam thiab ua rau lub cuab yeej tawg tom qab lub sijhawm kawg ntawm tus neeg siv ua ntej siv nws .

Tom qab qhov pib hlawv-nyob rau hauv lub sij hawm, kev ua tsis tiav feem ntau tawm hauv qab thiab tshwm sim tuaj yeem. Raws li cov khoom siv lossis txawm zaum, lawv hnub nyoog. Tshuaj lom neeg feem ntau txo qhov zoo ntawm lub ntim, xov hlau, thiab cov tivthaiv, thiab kho tshuab thiab thermal cycling coj lawv cov xov tooj ntawm lub zog ntawm qhov khoom. Cov yam zoo li no ua rau cov nqi tsis tu ncua ntxiv raws li cov khoom muaj hnub nyoog. Qhov no yog vim li cas thiaj ua tsis tiav yog feem ntau ntawm lawv cov hauv paus ua los yog thaum twg qhov tsis tau tiav hauv lub neej ntawm kev tivthaiv.

Nrhiav Ib Tug Ua Kheej

Thaum twg ib qho kev tivthaiv tsis muaj qee qhov qhia tau tias yuav pabcuam tau cov khoom ua tsis tiav thiab pabcuam teebmeem hauv tshuab hluav taws xob . Cov cim no yog:

• Pom tau

  Qhov tseem ceeb tshaj qhia tau tias ib qho kev tivthaiv tau ua tsis tiav yog los ntawm kev tshuaj xyuas pom kev. Cov khoom tsis muaj feem tau ua rau thaj chaw muaj kev puas tsuaj lossis tawg, lossis tau pom thiab nthuav dav. Capacitors feem ntau pom pom, tshwj xeeb tshaj yog electrolytic capacitors nyob ze lawv cov hlau saum. IC tej pob khoom feem ntau muaj ib lub qhov me me hlawv rau hauv lawv qhov chaw kub kub ntawm qhov tivthaiv ua kom cov yas nyob ib ncig ntawm qhov chaw sov tas los ntawm IC pob.

• Hnov

  Thaum cov khoom tsis ua haujlwm, lub thermal tshaj feem ntau tshwm sim uas ua rau cov pa luam yeeb xiav thiab lwm yam yeeb nkab yuav raug tso tawm los ntawm kev tiv thaiv kev ua txhaum. Cov pa luam yeeb kuj muaj ntxhiab tsw txawv thiab nws txawv ntawm hom kev tivthaiv. Qhov no feem ntau yog thawj zaug ntawm qhov kev tiv thaiv tsis dhau lub tshuab tsis ua haujlwm. Feem ntau cov ntxhiab tsw txawv ntawm ib qho ua tsis tau zoo yuav nyob ib ncig ntawm lub sijhawm los yog lub limtiam uas tuaj yeem pab nyob rau hauv kev txheeb xyuas qhov kev txhaum cai thaum lub sijhawm teeb meem.

• Suab

  Qee lub sijhawm ua suab nrov thaum lawv poob. Qhov no tshwm sim ntau dua nrog kev kub ceev thermal failures, dhau qhov kev taw qhia, thiab tshaj cov xwm txheej tam sim no. Thaum twg ib qho kev tiv thaiv tsis tiav qhov no, ib tus ntxhiab tsw feem ntau nrog tus tsis ua hauj lwm. Lub rooj sib hais tsis sib xws yog tsis tshua meej, thiab feem ntau txhais tau hais tias cov khoom ntawm cov khoom yuav tau pom nyob hauv cov khoom kom pom tias cov khoom ua tsis tiav yog tuaj yeem nrhiav tau qhov kev tiv thaiv uas tsis txuas rau PCB lossis hauv qhov system.

• Kev Ntsuam Xyuas

  Qee lub sij hawm tsuas yog los txheeb xyuas ib qho kev tivthaiv uas tau ua tsis tau zoo yog los kuaj cov khoom ntiag tug. Qhov no yuav nyuaj rau PCB vim feem ntau lwm cov khoom yuav cuam tshuam qhov kev ntsuas vim txhua qhov kev ntsuas muaj feem xyuam rau qhov siv qhov me me los sis tam sim no, lub Circuit Court yuav teb rau nws thiab nyeem tau muab pov tseg. Yog hais tias ib qho siv ntau qhov subassemblies, feem ntau hloov subassemblies yog ib txoj hauv kev zoo rau kev nqes rau qhov twg qhov teeb meem nrog lub tshuab nyob.