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metal insulator metal (MIM)

MIM stands for Metal - Insulator - Metal. A MIM diode is a multilayer diode consisting of two metal layers with an insulating layer between them. It operates as a bidirectional Zener di ode and can be designed in thin-film technology

. MIM diodes operate bidirectionally and switch when a predetermined threshold is exceeded, both at positive and negative voltage

. The threshold values at which the MIM diodes switch to the conducting state depend on the structure, but also on the thickness of the insulation layer and the physical properties of the insulation and metal layers.

Structure of the MIM diode, photo: powerelectronics.com

Structure of the MIM diode, photo: powerelectronics.com

MIM diodes in thin-film technology are used, among other things, in active matrices of TFD displays and TFT displays as an alternative to thin-film transistors. They have fewer layers and are easier to manufacture. A variant of the MIM diode is the MIIM diode, which has a second insulation layer.

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Englisch: metal insulator metal - MIM
Updated at: 02.06.2016
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Translations: DE