不良设计对SMT的影响[1]

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2017-01-20

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SMT1FCMPCBPCB4mmPCB5mm5mm117.0mmFCM222PCBPCBR2mmPCBPCB33PCB3MarkPCBMarkMarkMarkMarkMarkMark1.0mm3mmΦ3mmV-CutBGACSPPitch=0.5mmQFPMarkMark5mm1MarkV-CutSMT454MarkSMT5MarkV-cut,SMT2MarkPCB5mmSMT66Mark5mm3PCBMark77Mark4PCBMark88995PCB110103216201221120123216IPC11201232163IPCIPCIC1212413514615632161608√141671217183SMT1980.5mm0.8mmBGAQFP3mm20TJC219IPC-7525StencilDesignGuidelines222310PCBPCBPCBPCB24PCB