Method for fabricating a ferroelectric memory configuration

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United States of America Patent

PATENT NO 6500677
SERIAL NO

10027106

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention provides a method. In a first step of a method for fabricating a ferroelectric memory configuration, there is provided a substrate having a multiplicity of memory cells. Each of the memory cells has at least one select transistor, at least one short-circuit transistor, and at least one ferroelectric capacitor. The transistors are connected in an electrically conductive manner to a first of the electrodes of the ferroelectric capacitor. In the next step, at least one electrically insulating layer is applied. In the next step, at least one contact hole for connecting a second electrode of the ferroelectric capacitors is produced. Next, contact holes for connecting the short-circuit transistors are produced. Next, the contact holes are filled with electrically conductive material. Next, an electrically conductive layer is applied and patterned, so that the second electrodes of the ferroelectric capacitors are each conductively connected to the short-circuit transistors.

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Patent Owner(s)

  • QIMONDA AG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bergmann, Renate Munchen, DE 2 123
Braun, Georg Munchen, DE 66 837
Dehm, Christine Nurnberg, DE 24 349
Hoenigschmid, Heinz East Fishkill, NY 53 978
Roehr, Thomas Aschheim, DE 42 615
Schindler, Gunther Munchen, DE 38 288

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