Menene Dalilan Takaddar Abun Chip?

A cikin samar da PCBAInjin SMT, fashewar abubuwan haɗin guntu ya zama ruwan dare a cikin capacitor multilayer chip capacitor (MLCC), wanda galibi yakan haifar da damuwa ta thermal da damuwa na inji.

1. TSARIN MLCC capacitors yana da rauni sosai.Yawancin lokaci, MLCC an yi shi ne da masu ƙarfin yumbu masu yawa, don haka yana da ƙarancin ƙarfi kuma yana da sauƙin tasiri ta hanyar zafi da ƙarfin injin, musamman a cikin siyar da igiyar ruwa.

2. A lokacin tsarin SMT, tsawo na z-axis nakarba da wuri injiAn ƙaddara ta hanyar kauri daga cikin sassan guntu, ba ta hanyar firikwensin matsa lamba ba, musamman ga wasu na'urorin SMT waɗanda ba su da aikin saukowa mai laushi na z-axis, don haka fashe yana haifar da kauri daga cikin abubuwan.

3. Buckling danniya na PCB, musamman bayan waldi, yana yiwuwa ya haifar da fatattaka na abubuwa.

4. Wasu abubuwan PCB na iya lalacewa lokacin da aka raba su.

Matakan rigakafi:

A hankali daidaita tsarin tsarin walda, musamman ma zafin zafin jiki na yankin preheating bai kamata ya zama ƙasa da ƙasa ba;

Ya kamata a daidaita tsayin axis a hankali a cikin injin SMT;

Siffar yankan jigsaw;

A curvature na PCB, musamman bayan waldi, ya kamata a gyara daidai da.Idan ingancin PCB yana da matsala, ya kamata a yi la'akari.