QFN / DFN PCB 焊盤設計與焊接生產流程注意事項
焊接允收判斷標準-QFN/DFN IPC-A-610規範8.3.13中， QFN/DFN系列產品焊接相關判斷標準如下表Table 8-15 。 適用class：class 2( 消費性電子產品適用)。 QFN/DFN 為無引腳設計，一般很難從其外觀的焊錫點來判斷其焊錫性是否良好，目前
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