Formation method of semiconductor structure
A semiconductor and gas technology, applied in semiconductor/solid-state device manufacturing, electrical components, circuits, etc., can solve the problems of semiconductor structure electrical performance and reliability to be improved, so as to improve reliability and electrical performance, improve appearance, prevent The effect of etching
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[0038]It can be seen from the background art that the electrical performance and reliability of the semiconductor structure formed by using the TSV technology in the prior art needs to be improved.
[0039] It has been found through research that the performance of the redistribution layer (RDL, Redistribution Layer) located at the bottom and sidewall surface of the TSV via hole is poor. It is not covered by the rewiring layer, which is an important reason for the poor electrical performance and reliability of the semiconductor structure.
[0040] Conduct research on the formation method of the semiconductor structure, the process steps of forming the semiconductor structure include:
[0041] Please refer to figure 1 , providing a substrate 100, forming a through hole 101 in the substrate 100; forming a metal layer 102 on the surface of the substrate 100, the bottom and the sidewall surface of the through hole 101; using a spin-on-coating process (spin-on-coating) to form an...
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