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US07358100B2 Bottom conductor for integrated MRAM 有权
集成MRAM的底部导体

Bottom conductor for integrated MRAM
摘要:
A method to fabricate an MTJ device and its connections to a CMOS integrated circuit is described. The device is built out of three layers. The bottom layer serves as a seed layer for the center layer, which is alpha tantalum, while the third, topmost, layer is selected for its smoothness, its compatibility with the inter-layer dielectric materials, and its ability to protect the underlying tantalum.
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