| 摘要 |
PURPOSE: A stack package using a flexible double wired substrate is provided to reduce an error rate of the stack package by using a base package and unit packages in a reliable manner. CONSTITUTION: A stack package includes a base package(200), and unit packages(300) three-dimensionally deposited on the base package(200). The base package(200) has a plurality of contact terminals(160). The first and the second unit packages(300a,300b) are formed on the base package(200). The first unit package(300a) has a side contacting the contact terminals of the base package(200), and an opposite side with first contact terminals(260a) electrically connected to the contact terminals(160) of the base package(200). The second unit package(300b) has a side contacting the first contact terminals(260a) of the first unit package(300a), and an opposite side with second contact terminals(260b) electrically connected to the first contact terminals(260a). |
