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三星电机提出 AI 半导体基板 MLC 复合化方向

2026-09-10 17:12:38

ChainCatcher 消息,9 月 10 日,三星电机封装事业部课长金相勋在仁川松岛会议中心举行的 KPCA Show 国际研讨会 INSIGHT 2026 上发表演讲,提出应对 AI 半导体封装基板大型化、高多层化的多层核心(MLC)技术方向。

金相勋表示,以往通过增加单张 CCL 厚度的单层核心(SLC)方式,随核心增厚会导致内部过孔和电路加工难度上升、过孔尺寸缩小受限。MLC 转向 CCL 与 PPG 多层组合甚至两张 CCL 的混合结构,可同时提升刚性和布线自由度,并在 PPG 层布置地线或信号布线。两张 CCL 中间加接合层能更稳定支撑基板,但工艺更复杂。

当前量产常用凸点间距 90μm 以上,85μm 左右为印刷微细焊球工艺拐点,80μm 附近难度显著上升,55–45μm 级可能转向金属凸点。玻璃核心作为另一选项,刚性更高、热膨胀系数更低,有助于减少大型封装翘曲,但需解决易碎处理和微孔镀覆技术。基板需同时满足信号完整性、电源完整性和机械完整性,高性能封装基板层数将从约 20 层、90mm 级向 120mm 级乃至 40 层以上发展。

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