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Back中韓記憶體技術差距縮小 韓媒:高頻寬記憶體僅差3年
中韓記憶體技術差距縮小 韓媒:高頻寬記憶體僅差3年
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自由时报yesterdayBusiness2 min readChina

中韓記憶體技術差距縮小 韓媒:高頻寬記憶體僅差3年

韓國半導體協會報告指出,南韓與中國在記憶體的技術差距迅速縮小,其中HBM差距縮小至3年、DRAM 2年、NAND快閃記憶體1年。

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韓國半導體協會報告指出,韓中記憶體技術差距迅速縮小,高頻寬記憶體(HBM)差距縮至3年、DRAM 2年、NAND 1年。中國企業透過先進封裝等替代技術突破美國管制,急起直追。

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Why It Matters

韓國半導體協會報告顯示韓中記憶體技術差距縮小。美國對中實施EUV設備出口管制。

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韓國半導體協會(KSIA)13日報告指出,韓國與中國在記憶體的技術差距迅速縮小,在高頻寬記憶體(HBM)方面,該差距已縮小至3年、DRAM 2年、NAND快閃記憶體1年。相關差距一度預估超過5年,如今已縮小至1個世代或不到1代的技術距離。

韓國中央日報報導,中國技術進展的跡象已經浮現。中國長鑫存儲正與阿里巴巴旗下無廠半導體子公司平頭哥(T-Head)測試其第5代HBM(HBM3E)。長鑫計畫最快明年初推出使用該款晶片的資訊科技產品。HBM3E僅落後三星電子、SK海力士與美企美光科技目前生產的HBM4 1個世代。

漢陽大學教授白瑞仁(Baek Seo-in)指出,中國以超乎預期的速度,在半導體領域急起直追,「實際上將2至3年的進程壓縮至1年。中國政府的支持、廣大的國內市場以及強大的研究生態系,快速推動了技術發展」。

報導說,中國在HBM的進展尤其令人憂心,因為儘管美國嚴格管制,中國的技術仍持續推進。極紫外光機(EUV)對製造先進HBM至關重要,而中國在美國的出口管制下,無法採購該設備。

為此,中國轉向後端製程,尤其是涉及晶片堆疊與連結的先進封裝與異質整合(heterogeneous integration)技術。據悉,長鑫已將X-Stacking技術應用於其HBM的設計,X-Stacking則為長江存儲開發的3D NAND快閃記憶體鍵合技術。此技術直接鍵結兩個晶圓,縮短電路之間的距離,因此無需EUV設備即可有更大頻寬,以及產生更少廢熱。

嘉泉大學(Gachon University)半導體學院講座教授金容奭(Kim Yong-seok)指出,中國企業透過尋求替代方式採購關鍵元件與研發自己的技術,來反制美國先進晶片與設備的出口管制。中國的HBM在其廣大國內市場與持續增加的融資資源支撐下,取得推進動能,韓國的晶片產業必須加速回應步伐。

What to Watch

AI outlook — possibilities, not facts

  • 長鑫存儲最快明年初推出使用HBM3E晶片的資訊科技產品

    Likely · Within months

Open Questions

  • 長鑫存儲何時能正式量產HBM3E?
  • 韓國半導體產業將採取何種具體加速回應措施?

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