1. Kev kuaj hluav taws xob

Nyob rau hauv cov txheej txheem ntau lawm ntawm PCB pawg thawj coj saib, nws yog inevitable uas hluav taws xob tsis xws luag xws li luv luv circuits, qhib circuits thiab to los ntawm sab nraud yam yuav inevitably tshwm sim. Tsis tas li ntawd, PCB txuas ntxiv hloov mus rau qhov siab ceev, zoo suab thiab ntau theem. Yog tias cov laug cam tsis raug tshem tawm hauv lub sijhawm Kev Ntsuam Xyuas tawm, thiab tso cai rau nws ntws mus rau hauv cov txheej txheem, yuav ua rau tsis muaj nqi ntau dua. Yog li ntawd, ntxiv rau kev txhim kho kev tswj cov txheej txheem, kev txhim kho ntawm kev sim tshuab kuj tseem tuaj yeem muab cov tuam txhab PCB nrog cov kev daws teeb meem los txo qhov kev tsis lees paub thiab txhim kho cov khoom lag luam.

Hauv cov txheej txheem tsim khoom ntawm cov khoom siv hluav taws xob, tus nqi poob los ntawm qhov tsis xws luag muaj qhov sib txawv ntawm txhua theem. Qhov kev tshawb pom ua ntej yog, tus nqi kho mob qis dua. “Txoj Cai ntawm 10’s” feem ntau yog siv los ntsuas tus nqi kho mob thaum PCBs pom tias muaj kev puas tsuaj ntawm ntau theem ntawm kev tsim khoom. Piv txwv li, tom qab lub rooj tsavxwm dawb huv tau tsim, yog tias qhov qhib Circuit Court hauv lub rooj tsavxwm tuaj yeem kuaj pom lub sijhawm tiag tiag, feem ntau tsuas yog yuav tsum tau kho cov kab los txhim kho qhov tsis xws luag, lossis feem ntau ntawm ib lub rooj tsavxwm dawb paug tau ploj lawm; Tab sis yog tias qhov qhib Circuit Court tsis raug kuaj pom, tos lub rooj tsavxwm xa khoom Thaum cov khoom siv qis qis ua tiav qhov kev teeb tsa ntawm cov khoom, lub tshuab hluav taws xob thiab IR raug muab tshem tawm, tab sis lub sijhawm no nws pom tias lub Circuit Court raug kaw. Cov neeg sib sau ua ke hauv qab no yuav nug cov tuam txhab tsim khoom lag luam khoob kom them nyiaj rau cov nqi ntawm cov khoom thiab kev ua haujlwm hnyav. , Cov nqi kuaj xyuas, thiab lwm yam. Yog tias nws tsis muaj hmoo ntau dua, lub rooj tsav xwm tsis zoo tsis tau pom nyob rau hauv qhov kev sim ntawm cov khoom sib dhos, thiab nws nkag mus rau tag nrho cov khoom tiav, xws li khoos phis tawj, xov tooj ntawm tes, qhov chaw pib, thiab lwm yam ntawm no lub sij hawm, qhov poob pom los ntawm qhov kev xeem yuav yog lub rooj tsavxwm khoob hauv lub sijhawm. Ib puas npaug, ib txhiab zaus, lossis siab dua. Yog li ntawd, rau PCB kev lag luam, kev ntsuam xyuas hluav taws xob yog rau kev tshawb pom ntxov ntawm kev ua haujlwm tsis zoo hauv Circuit Court.

Cov neeg ua si hauv qab feem ntau xav kom cov tuam txhab PCB ua 100% kev ntsuas hluav taws xob, thiab yog li lawv yuav tau txais kev pom zoo nrog PCB cov tuam txhab ntawm cov kev sim thiab cov txheej txheem xeem. Yog li ntawd, ob tog yuav xub qhia meej meej cov khoom hauv qab no:

1. Ntsuas cov ntaub ntawv qhov chaw thiab hom ntawv

2. Kev kuaj mob, xws li voltage, tam sim no, rwb thaiv tsev thiab kev sib txuas

3. Cov txheej txheem tsim khoom thiab xaiv

4. Kuaj tshooj

5. Kho specifications

Hauv kev tsim cov txheej txheem PCB, muaj peb theem uas yuav tsum tau kuaj:

1. Tom qab txheej txheej yog etched

2. Tom qab cov txheej txheem etched

3. Cov khoom tiav

Hauv txhua theem, feem ntau yuav muaj 2 mus rau 3 zaug ntawm 100% kev sim, thiab cov laug cam yuav raug tshuaj xyuas thiab rov ua haujlwm dua. Yog li ntawd, qhov chaw kuaj mob kuj yog qhov zoo tshaj plaws ntawm kev sau cov ntaub ntawv rau kev txheeb xyuas cov txheej txheem teeb meem. Los ntawm kev txheeb xyuas cov txiaj ntsig, qhov feem pua ​​​​ntawm qhov qhib circuits, luv circuits thiab lwm yam teeb meem rwb thaiv tsev tuaj yeem tau txais. Tom qab ua haujlwm hnyav, kev tshuaj xyuas yuav ua tiav. Tom qab cov ntaub ntawv raug txheeb xyuas, txoj kev tswj xyuas zoo tuaj yeem siv los nrhiav kev daws qhov laj thawj ntawm qhov teeb meem.

2. Kev ntsuas hluav taws xob thiab cov khoom siv

Cov kev kuaj hluav taws xob muaj xws li: Dedicated, Universal Grid, Flying Probe, E-Beam, Conductive Cloth (Glue), Peev Xwm Thiab Txhuam Txhuam (ATG-SCANMAN), uas muaj peb yam khoom siv feem ntau, uas yog lub tshuab kuaj tshwj xeeb, kev kuaj dav dav tshuab thiab ya soj ntsuam kuaj tshuab. Txhawm rau kom nkag siab zoo dua cov haujlwm ntawm ntau yam khoom siv, cov hauv qab no yuav sib piv cov yam ntxwv ntawm peb lub ntsiab khoom siv.

1. Kev sim siab

Qhov kev ntsuam xyuas tshwj xeeb yog qhov kev sim tshwj xeeb tshwj xeeb vim tias cov khoom siv siv (Fixture, xws li rab koob rau kev ntsuas hluav taws xob ntawm lub rooj tsav xwm hluav taws xob) tsuas yog tsim nyog rau ib tus lej ntawm cov khoom siv, thiab cov boards ntawm cov khoom sib txawv tsis tuaj yeem kuaj. Thiab nws tsis tuaj yeem rov ua dua. Hais txog cov ntsiab lus xeem, ib lub vaj huam sib luag tuaj yeem kuaj hauv 10,240 cov ntsiab lus thiab ob sab 8,192 cov ntsiab lus txhua. Nyob rau hauv cov nqe lus ntawm kev xeem ceev, vim lub thickness ntawm lub taub hau sojntsuam, nws yog tsim nyog rau lub rooj tsavxwm nrog ib tug suab los yog ntau tshaj.

2. Universal Grid xeem

Lub hauv paus ntsiab lus ntawm qhov kev ntsuam xyuas dav dav yog qhov kev teeb tsa ntawm PCB Circuit Court yog tsim raws li daim phiaj. Feem ntau, qhov hu ua Circuit Court ntom ntom yog hais txog qhov kev ncua deb ntawm kab sib chaws, uas tau qhia nyob rau hauv cov ntsiab lus ntawm lub suab (qee zaum nws kuj tuaj yeem qhia los ntawm qhov ntom ntom), thiab qhov kev sim dav dav yog raws li txoj cai no. Raws li txoj haujlwm ntawm lub qhov, G10 cov khoom siv yog siv los ua lub npog ntsej muag. Tsuas yog qhov kev sojntsuam ntawm lub qhov chaw tuaj yeem dhau los ntawm lub npog ntsej muag rau kev kuaj hluav taws xob. Yog li ntawd, qhov chaw tsim khoom ntawm lub fixture yog yooj yim thiab ceev, thiab kev sojntsuam Cov koob tuaj yeem rov qab siv dua. General-purpose test muaj tus qauv Grid tsau koob phaj loj nrog cov ntsiab lus ntsuas ntau heev. Cov koob phaj ntawm cov khoom txav tau tuaj yeem ua raws li cov khoom sib txawv. Thaum loj ntau lawm, lub movable koob phaj tuaj yeem hloov mus rau ntau lawm rau cov khoom sib txawv. xeem.

Tsis tas li ntawd, txhawm rau txhawm rau txhawm rau txhawm rau ua tiav ntawm PCB pawg thawj coj ua tiav, nws yuav tsum siv lub tshuab hluav taws xob siab (xws li 250V) ntau lub hom phiaj hluav taws xob ntsuas hluav taws xob los ua qhov qhib / luv hluav taws xob kuaj ntawm lub rooj tsavxwm nrog rab koob phaj nrog ib qho kev sib cuag. Lub tshuab ntsuas thoob ntiaj teb no yog hu ua “Cov Khoom Siv Ntsuas Tsis Siv Neeg” (ATE, Cov Khoom Siv Tsis Siv Neeg Xeem).

Cov ntsiab lus ntawm lub hom phiaj kev xeem feem ntau yog ntau tshaj 10,000 cov ntsiab lus, thiab qhov kev xeem nrog qhov ntsuas qhov ntom ntom lossis hu ua qhov kev xeem ntawm daim phiaj. Yog hais tias nws yog siv rau lub rooj tsavxwm high-density, nws yog tawm ntawm on-grid tsim vim nyob ze qhov sib nrug heev, yog li nws belongs rau off-grid Rau kev ntsuam xyuas, lub fixture yuav tsum tau tshwj xeeb tsim, thiab kev ntsuam xyuas ceev ntawm general-purpose. kev xeem feem ntau yog mus txog QFP.

3. Flying Probe xeem

Lub hauv paus ntsiab lus ntawm kev sojntsuam ya davhlau yog qhov yooj yim heev. Nws tsuas yog xav tau ob lub probes txav x, y, z los ntsuas ob lub ntsiab lus kawg ntawm txhua lub voj voog ib los ntawm ib qho, yog li tsis tas yuav ua cov jigs kim ntxiv. Tab sis vim hais tias nws yog qhov kawg taw tes xeem, qhov kev xeem ceev yog qeeb heev, txog 10-40 ntsiab lus / sec, yog li nws yog qhov tsim nyog rau cov qauv thiab cov khoom me me; nyob rau hauv cov nqe lus ntawm kev xeem ceev, ya soj ntsuam kuaj yuav siv tau rau high-density boards.