化合物半導體市場需要高純度的铟。今天，我們將討論「高純度」對於铟的實際意義，以及如何驗證。
在大多數應用中，铟通常以 4N (99.99%) 的純度購買。作為焊料互連，4N 純度是沒問題的。4N5 (99.995%) 和 5N (99.999%) 純度的铟最常見於低溫密封等應用；這些應用真正利用了铟元素最獨特的特性 - 如冷焊接、延展性和接近絕對零度的軟度。化學反應和物理沉積製程需要更高的純度：6N (99.9999%) 和 7N (99.99999)。
當您處理關鍵應用時，您應該要求驗證原材料的純度。在 Indium Corporation，這是高純度铟的標準文件。每批貨都包含一份完整的分析證書，以及元素雜質的明細表。如需更多關於我們材料認證的資訊或材料選擇方面的協助，請透過[email protected]與我們聯絡。
~Jim
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