Nekuunzwa kwepamusoro pegomo tekinoroji, iko kuputira kwe Pcb bhodhi inowedzera nokukurumidza. Naizvozvo, kunyangwe mamwe mabhodhi ePBB ane mashoma mashoma uye mashoma mashoma, iko kwekutsvaga kwePCB mabhodhi kwakakosha. Mune yakaoma pcb redunhu bhodhi kuongorora, iyo tsono mubhedha bvunzo nzira uye kaviri kuongorora kana kubhururuka tsono bvunzo nzira mbiri nzira.

1. Tsono mubhedha bvunzo nzira

Iyi nzira ine chitubu-chakatakurwa masekesi akabatana kune yega yega yekuona nzvimbo pane iyo PCB. Chitubu chinomanikidza chishandiso chega chega kumanikidziro e100-200g kuona zvakanaka kusangana pane yega bvunzo poindi. Ma probes akadaro akarongedzwa pamwechete uye anonzi “mibhedha yetsono”. Mapoinzi ekuyedza uye zviratidzo zvekuyedza zvinogona kuiswa pasi pekutonga kweiyo bvunzo software. Kunyangwe zvichikwanisika kuyedza mativi ese ePBB uchishandisa pini bhedha bvunzo nzira, kana uchigadzira iyo PCB, ese mapoinzi ekuyera anofanirwa kuve pane yakatsemuka pamusoro peiyo PCB. Tsono mubhedha wekuyedza michina inodhura uye yakaoma kuchengeta. Tsono dzinosarudzwa mumatanho akasiyana zvichienderana nebasa ravo chairo.

Yekutanga general-chinangwa grid processor ine bhodhi rakaboorwa rine mapini akapatsanurwa zana, 100, kana 75mil pakati penzvimbo. Pini dzinoshanda seprobes uye gadzira akananga emakanika kubatana uchishandisa emagetsi zvinongedzo kana node pane pcb bhodhi. Kana iyo pad paPBB ichienderana neiyo grid yekuyedza, polyvinyl acetate firimu, yakakwenenzverwa zvinoenderana neyakagadziriswa, inoiswa pakati peiyo gridhi nePCB kuti igadzirise dhizaini yemamwe ma probes. Kuenderera mberi kwekutsvaga kunoitwa nekuwana iwo ekupedzisira mapoinzi eiyo mesh, ayo akatsanangurwa seye Xy marongero epad. Sezvo mambure ese paPCB achiramba achiongororwa. Nenzira iyi, kuongorora kwakazvimirira kunopedzwa. Nekudaro, iko padyo kweiyo probe kunogumira kushanda kweiyo nzira-yemubhedha nzira.

2. Kaviri kuongorora kana kubhururuka tsono nzira bvunzo

Iyo inobhururuka tsono tester haina kuvimba nepini pateni yakaiswa pane yechigadziro kana bracket. Kubva pane ino system, maviri kana anopfuura ma probes akaiswa pane zvidiki, zvakasununguka zvinofambiswa nemagineti misoro muXY ndege, uye mapoinzi ebvunzo anotungamirwa zvakananga neCADI Gerber dhata. Iwo ma probes maviri anogona kufamba mukati me4mil yeumwe neumwe. Ma probes anogona kufamba zvakasununguka uye hapana muganho chaiwo wekuti vangasvika padhuze sei kune mumwe nemumwe. Muedzo ane maoko maviri anofamba achidzokera uye mberi zvinoenderana nematanho emagetsi. Pcbbodi rakamanikidzwa kupokana neyakavharika denderedzwa pane simbi ndiro inoshanda seimwe simbi ndiro yeiyo capacitor. Kana paine dunhu pfupi pakati pemitsara, iyo capacitance ichave yakakura kupfuura pane imwe nhanho. Kana paine matunhu anotyora, iyo capacitance ichave iri diki.

Kune grid yakajairwa, iyo yakajairwa grid yemabhodhi uye pamusoro pegomo michina ine pini zvinhu zviri 2.5mm, uye iyo bvunzo pad inofanira kunge yakakura kudarika kana yakaenzana ne1.3mm. Kana iyo grid iri diki, iyo yekuyedza tsono iri diki, brittle uye nyore kukuvara. Naizvozvo, gridhi rakakura kupfuura 2.5mm rinosarudzwa. Iko kusanganiswa kweyeyese tester (yakajairwa grid tester) uye inobhururuka tsono tester inogonesa chaiyo uye yehupfumi kuyedza kwepamusoro-density pcb PCB. Imwe nzira ndeyekushandisa inoitisa rubber tester, nzira inogona kushandiswa kuona mapoinzi anotsauka kubva mugidhi. Nekudaro, iwo marefu akakwira emapads ane inopisa mweya yekumisikidza inozotadzisa kubatana kwenzvimbo dzekuyedza.

Aya matatu matanho ekutsvaga anowanzoitwa:

1) Bare bhodhi kuona;

2) Kuonekwa pamhepo;

3) Kuonekwa kwebasa.

Iyo yepasirese mhando tester inogona kushandiswa kuyedza pcb mabhodhi eimwe dhizaini uye mhando, uye zvakare kune akakosha mafomu.