半导体存储装置

By setting notches on the side of semiconductor chips and optimizing wiring configuration, the problem of high integration in memory chip stack-up structures is solved, achieving higher integration and electrical characteristic uniformity, and improving the reliability and manufacturing efficiency of semiconductor memory devices.

CN114267646BActive Publication Date: 2026-07-17KIOXIA CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KIOXIA CORP
Filing Date
2021-08-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, it is difficult to achieve high integration of the memory chip stacking structure of semiconductor memory devices, resulting in uneven wiring length and inconsistent electrical characteristics, which affects reliability and manufacturing efficiency.

Method used

By creating notches on the sides of semiconductor chips and optimizing the configuration of leads and pads to avoid contact between leads and chips, a layered structure without intermediaries is adopted to achieve tight stacking and uniform electrical connection of multiple chips.

Benefits of technology

It improves the reliability and manufacturing efficiency of semiconductor memory devices, achieves higher integration and electrical characteristic uniformity, reduces wiring length non-uniformity, and enhances product design flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明的一个实施方式提供能够将半导体芯片进一步高集成化的半导体存储装置。一个实施方式的半导体存储装置具备基板、第1半导体芯片及第2半导体芯片。第1半导体芯片具有与基板相接的第1面、第1面的相反侧的第2面及设置于第2面的第1焊盘。第2半导体芯片具有与第2面相接的第3面、第3面的相反侧的第4面及缺口部。缺口部设置于处于第3面与第4面之间的侧面和第3面交叉的角部。缺口部在从第4面的上方观察时与第1焊盘的至少一部分重叠。
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