过硅通孔技术,提供了高密度、低延时和低功耗的垂直互连,芯片在三维方向堆叠的密度大、互连线短,从而使三维堆叠芯片成为可能。文章介绍了基于TSVs的三维堆叠芯片新的测试流程、TSVs绑定前测试的挑战和TSVs绑定后的可靠性与测试挑战,包括KGD与KGD晶圆级测试和老化、DFT 技术、绑定前可测性、测试经济性、TSVs绑定后的可靠性和测试问题,以及三维集成独有的问题,并介绍了这一领域的早期研究成果。
Through-silicon vias(TSVs) technology provides high-density ,low-latency and low-power vertical interconnects through a thinned-down wafer substrate ,thereby enabling the creation of three-dimensional stacked ICs(3D-SICs) .The new 3D stacked chips test procedure based on TSVs ,the challenge of pre-bond test and the reliability and test challenge of TSVs post-bond are described ,including KGD and KGD wafer-level test and burn-in ,design for testability (DFT ) skill ,pre-bond testability ,test economy ,reliability and test problem of TSVs post-bond and problems that are unique to 3D integration .Then the early research re-sults in this area are summarized .