Method for producing high yield electrical contacts to N+ amorphous silicon
First Claim
1. A method for treating an N+ amorphous silicon surface to enhance electrical contact with said surface, said method comprising the steps of:
- depositing a layer of molybdenum on said N+ amorphous silicon surface; and
removing said molybdenum layer.
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Accused Products
Abstract
Electrical contact to doped amorphous silicon material is enhanced by depositing a thin layer of molybdenum on the amorphous silicon surface and subsequently removing it. This treatment is found to permanently alter the silicon surface so as to facilitate and improve electrical contact to the silicon material by subsequently deposited metallization layers for source and drain electrode attachment. The layer of molybdenum which is deposited and removed need only be approximately 50 nanometers in thickness to produce desirable results. The method is particularly useful in the fabrication of thin film, inverted, amorphous silicon field effect transistors. Furthermore, such devices are particularly useful in the fabrication of liquid crystal display systems employing such field effect transistors in matrix addressed arrays used for switching individually selected pixel elements.
7 Citations
9 Claims
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1. A method for treating an N+ amorphous silicon surface to enhance electrical contact with said surface, said method comprising the steps of:
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depositing a layer of molybdenum on said N+ amorphous silicon surface; and removing said molybdenum layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification