博客
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沉默短片:為何錫鬚在低功耗電子產品中繁衍
Tin whiskers are a significant threat to long-life, low-power electronics, causing silent short circuits even in stable, room-temperature environments. This insidious failure mode is driven by compressive stress in tin plating, but can be effectively mitigated by choosing the right surface finish, specifically a system of matte tin over a nickel underplate with a post-plating…
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高熱質量板上的HiP缺陷:為什麼更多的膏料從不是答案
When faced with head-in-pillow (HiP) defects on high thermal mass boards, the instinct is to add more solder paste, but this approach fails to address the root cause. The true problem is dynamic board warpage driven by thermal gradients, which can only be solved by mastering the reflow profile, ensuring proper mechanical support, and selecting…
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《精明省錢,愚蠢花錢:反對OSP的案例》
OSP may seem like a cost-effective PCB surface finish, but its short shelf life and vulnerability to heat create significant risks for New Product Introductions. This hidden liability often leads to solderability failures and expensive rework, turning initial savings into major project delays and costs that could be avoided with a more robust finish like…
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48小時循環:Bester PCBA的快速失效分析如何停止利潤流失
傳統的PCBA失效分析過於緩慢,導致小缺陷變成重大的財務負擔,因為更多的故障單位被生產和出貨。Bester PCBA的48小時快速失效分析循環打破了這個循環,提供明確的根本原因分析和可行的反饋,防止問題惡化,並在損害利潤前保護利潤率。
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看不見的瓶頸:為什麼您的韌件載入策略會限制SMT的吞吐量
線上韌件編程是SMT吞吐量的無聲殺手,讓整個生產線陷入困境。透過將編程與組裝區分開來,並採用如離線群組編程或專用高速閃存站等並行方式,您可以消除這個關鍵瓶頸,使生產線以最大速度持續運作。
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真正重要的清潔度指標:為什麼您的ROSE測試是在騙您
PCB清潔度的標準ROSE測試容易產生錯覺,使得因腐蝕和短路導致成本高昂的現場故障。其平均方法掩蓋了组件下的危險局部污染問題,這個問題可以用離子色譜儀進行詳細的化學分析來解決,真正預測長期可靠性。
