IPC-6012, SMB-SMT Byacapwe imbaho ​​zumuzunguruko kugira urupapuro ntarengwa cyangwa rugoreka rwa 0,75%, kandi izindi mbaho ​​muri rusange ntizirenza 1.5%;urupapuro rwemewe (impande zombi / ibice byinshi) byuruganda rukora ibikoresho bya elegitoronike mubusanzwe ni 0,70 --- 0,75%, (uburebure bwa 1,6mm) Mubyukuri, imbaho ​​nyinshi nkibibaho bya SMB na BGA zisaba urupapuro ruri munsi ya 0.5%;inganda zimwe ndetse ziri munsi ya 0.3%;PC-TM-650 2.4.22B

Uburyo bwo kubara Warpage = uburebure bwintambara / uburebure bugoramye
Uruganda rwumuzunguruko wa batiri rurakwigisha uburyo bwo kwirinda urupapuro rwumuzunguruko:

1. Igishushanyo mbonera: gahunda ya interlayer prepreg igomba guhura;ibice byinshi byibanze hamwe na prereg igomba gukoresha ibicuruzwa bimwe bitanga isoko;ubuso bwa C / S hejuru yubushushanyo bugomba kuba hafi hashoboka, kandi imiyoboro yigenga irashobora gukoreshwa;

2. Guteka ikibaho mbere yo gukata
Mubisanzwe dogere 150 mumasaha 6-10, ikureho ubuhehere buri mu kibaho, ukomeze utume resin ikira burundu, kandi ukureho imihangayiko mu kibaho;guteka ikibaho mbere yo gukata, haba urwego rwimbere cyangwa impande zombi zisabwa!

3. Witondere icyerekezo cyintambara nicyuma cyurupapuro rwakize mbere yo guteranya ikibaho kinini:
Ikigereranyo cya warp na weft kugabanuka biratandukanye.Witondere icyerekezo cya warp na weft mbere yo guca urupapuro rwabigenewe;witondere icyerekezo cyintambara nicyerekezo mugihe ukata ikibaho cyibanze;muri rusange icyerekezo cyo gukiza icyerekezo nicyerekezo cyintambara;icyerekezo kirekire cyumuringa wambaye laminate nicyerekezo cyintambara;Ibice 10 4OZ Imbaraga zuzuye umuringa

4. Kumurika umubyimba kugirango ukureho imihangayiko, gukonjesha nyuma yo gukanda ikibaho, gutunganya burrs;

5. Guteka ikibaho mbere yo gucukura: dogere 150 kumasaha 4;

6. Nibyiza kudahanagura isahani yoroheje, kandi birasabwa koza imiti;ibikoresho bidasanzwe bikoreshwa mugihe cya electroplating kugirango wirinde isahani kunama no kugundwa

7. Nyuma yo gutera amabati, shyira mubisanzwe ubushyuhe bwicyumba kuri marble iringaniye cyangwa isahani yicyuma cyangwa usukure nyuma yo gukonja kuburiri bureremba ikirere;