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台積電也來做「類 EMIB」封裝?當摩爾定律放緩,先進封裝為何成了 AI 晶片的新決戰點?

一句話結論: 當晶片微縮愈來愈慢,「把多顆晶片用高速橋接拼在一起」的先進封裝成了 AI 算力倍增的關鍵——台積電聯手景碩開發「類 EMIB」技術,正是要向英特爾獨門的封裝專利壁壘發起正面挑戰。
台積電進軍英特爾 EMIB 地盤——「矽橋」之爭正式開打

最近半導體圈最熱的話題不是哪一顆晶片又變小了,而是一個更「物理」的問題:晶片越做越小已經快到極限,接下來要靠什麼繼續變快? 答案指向先進封裝——而這一次,台積電把矛頭對準了英特爾的獨門技術 EMIB。

什麼是「類 EMIB」?為什麼台積電要追英特爾的技術?

EMIB(Embedded Multi-die Interconnect Bridge,嵌入式多晶片互連橋)是英特爾的招牌封裝技術。概念是:把一片極小的矽橋嵌入載板中,只讓需要高速溝通的晶片區塊透過這座橋互連,不需要把整塊載板都換成昂貴的矽中介層。

過去幾年,EMIB 一直與台積電主導的 CoWoS 分庭抗禮。如今傳出台積電與 ABF 載板大廠景碩合作、開發「類 EMIB」封裝技術,用於支援更大的多晶片 AI 晶片,並降低對產能吃緊的 CoWoS 的依賴——等於直接踏進英特爾的護城河。

AI 晶片出貨的隱形瓶頸——先進封裝才是真正卡關的環節

CoWoS、InFO、EMIB:三種先進封裝一次看懂

  • CoWoS(台積電):把邏輯晶片與高頻寬記憶體(HBM)並排放置在矽中介層(silicon interposer)上。中介層面積大、成本高,但目前 AI 加速器幾乎都靠它,產能長期「吃到撐」。
  • InFO(台積電):捨棄矽中介層,改用更便宜的扇出型載板,成本較低,常用於不需要 HBM 的應用。
  • EMIB(英特爾):不鋪整片中介層,只在需要的地方嵌入小型矽橋。靈活、成本相對可控,但良率與供應鏈生態由英特爾主導。

簡單說:CoWoS 像「整片地板都鋪大理石」,EMIB 像「只在走廊鋪幾塊高級地磚」——後者更省,但技術細節更難。台積電的「類 EMIB」就是要用自己對載板與供應鏈的掌控力,做出 EMIB 的靈活、卻不必付英特爾專利費的版本。

EMIB-T 供應鏈經濟學——英特爾正在打造下一個封裝生態系

這一步棋為何牽動全球 AI 供應鏈?

市場的反應很直接:消息傳出後台積電 ADR 單日漲逾 7%,法人也點名多家封測與載板廠受惠。背後的邏輯有三層:

1. 產能瓶頸:AI 晶片需求爆發,CoWoS 產能滿載,客戶排隊排到天邊。多一條「類 EMIB」技術路線,等於多一個出貨通道。

2. 專利與生態:英特爾的 EMIB 生態已吸引 Nvidia 評估採用,據報 Google 還向英特爾下了數百萬顆客製 AI 晶片的訂單。台積電若能用自有技術提供同等級方案,就能把客戶留在自己的生態圈。

3. 供應鏈擴散:先進封裝不再只是晶圓代工廠的遊戲——載板、封測、材料業者都成了戰略環節,ABF 載板甚至被形容為「戰略物資」。

投資與產業視角:如何分辨「真受惠」與「沾光題材」?

當一個技術趨勢發燒,股市總會出現大量「沾光股」。判斷真偽可以看三個問題:這家公司是否真的進入先進封裝供應鏈?訂單是確定的還是「可能」?技術門檻是否構成護城河?載板與封測廠的獲利能不能兌現,最終還是要看良率爬升與客戶驗證的實際進度,而不是新聞標題。

先進封裝的軍備競賽才剛開始。台積電挑戰英特爾、中國廠商強攻玻璃基板,全球供應鏈的勢力版圖正在重畫——誰能穩定量產、誰能綁住大客戶,誰就是下一輪 AI 晶片戰爭的贏家。

常見問題 (FAQ)

Q1:CoWoS 和 EMIB 到底差在哪?

CoWoS 用一整片矽中介層連接晶片與 HBM,面積大、成本高;EMIB 只在需要高速互連的位置嵌入小型矽橋,成本較低但技術複雜。兩者都是為了突破單一晶片面積極限而生的「多晶片」封裝方案。

Q2:為什麼摩爾定律放緩,先進封裝反而更重要?

電晶體微縮的成本與難度指數上升,廠商轉而靠「把多顆成熟製程的晶片封在一起」來提升整體效能。先進封裝等於在物理層面為晶片「疊 buff」,是延續效能成長的新路徑。

Q3:景碩是什麼公司?ABF 載板為何突然變重要?

景碩是 ABF 載板大廠。先進封裝與高階晶片都需要 ABF 載板作為「地基」,載板層數與精度直接決定封裝良率,因此從零組件一躍成為 AI 供應鏈的關鍵環節。

Q4:台積電做「類 EMIB」會影響 CoWoS 的地位嗎?

短中期不會——CoWoS 仍是 AI 加速器主流,需求遠大於供給。類 EMIB 更像是補足產能與成本彈性的第二條路線,讓台積電在不同客戶需求下提供更完整的選單。

Q5:一般投資人該怎麼看待這個趨勢?

先看訂單是否落實到財報,再判斷技術門檻。先進封裝是長線結構性趨勢,但供應鏈廠商良率爬升需要時間,短線漲幅往往領先基本面,追高前記得檢視估值。

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