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三星電機提出 AI 半導體基板 MLC 複合化方向

2026-09-10 17:12:38

ChainCatcher 消息,9 月 10 日,三星電機封裝事業部課長金相勳在仁川松島會議中心舉行的 KPCA Show 國際研討會 INSIGHT 2026 上發表演講,提出應對 AI 半導體封裝基板大型化、高多層化的多層核心(MLC)技術方向。

金相勳表示,以往通過增加單張 CCL 厚度的單層核心(SLC)方式,隨核心增厚會導致內部過孔和電路加工難度上升、過孔尺寸縮小受限。MLC 轉向 CCL 與 PPG 多層組合甚至兩張 CCL 的混合結構,可同時提升剛性和布線自由度,並在 PPG 層佈置地線或信號布線。兩張 CCL 中間加接合層能更穩定支撐基板,但工藝更複雜。

當前量產常用凸點間距 90μm 以上,85μm 左右為印刷微細焊球工藝拐點,80μm 附近難度顯著上升,55--45μm 級可能轉向金屬凸點。玻璃核心作為另一選項,剛性更高、熱膨脹係數更低,有助於減少大型封裝翹曲,但需解決易碎處理和微孔鍍覆技術。基板需同時滿足信號完整性、電源完整性和機械完整性,高性能封裝基板層數將從約 20 層、90mm 級向 120mm 級乃至 40 層以上發展。

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