Field effect transistor
First Claim
1. A field-effect transistor comprising:
- a substrate;
a plurality of semiconductor nanostructures supported by the substrate;
a source electrode connected to a portion of at least one semiconductor nanostructure among the plurality of semiconductor nanostructures;
a drain electrode connected to another portion of the at least one semiconductor nanostructure;
an insulating film adjoining the at least one semiconductor nanostructure and functioning as a gate insulating film; and
a gate electrode being capable of controlling electrical conduction of the at least one semiconductor nanostructure via the insulating film, wherein,each of the plurality of semiconductor nanostructures includes a low concentration region having a relatively low doping concentration and a pair of high concentration regions having a higher doping concentration than that of the low concentration region and being connected to both ends of the low concentration region;
the doping concentration of the high concentration region is 1×
1019 cm−
3 or more; and
a length of the low concentration region is shorter than a length of the gate electrode along a direction from the source electrode to the drain electrode, and the length of the gate electrode is shorter than an interspace between the source electrode and the drain electrode,wherein the length of the semiconductor nanostructures is longer than an interspace between the source electrode and the drain electrode.
5 Assignments
0 Petitions
Accused Products
Abstract
A source electrode 105 which is connected to a portion of at least one semiconductor nanostructure 103 among a plurality of semiconductor nanostructures, a drain electrode 106 connected to another portion of the semiconductor nanostructure 103, and a gate electrode 102 capable of controlling electrical conduction of the semiconductor nanostructure 103 are included. The semiconductor nanostructures 103 include a low concentration region 108 having a relatively low doping concentration and a pair of high concentration regions 107 having a higher doping concentration than that of the low concentration region 108 and being connected to both ends of the low concentration region 108. The doping concentration of the high concentration regions 107 is 1×1019 cm−3 or more; the length of the low concentration region 108 is shorter than a length of the gate electrode 102 along a direction from the source electrode 105 to the drain electrode 106; and the length of the gate electrode 102 is shorter than the interspace between the source electrode 105 and the drain electrode 106.
18 Citations
20 Claims
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1. A field-effect transistor comprising:
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a substrate; a plurality of semiconductor nanostructures supported by the substrate; a source electrode connected to a portion of at least one semiconductor nanostructure among the plurality of semiconductor nanostructures; a drain electrode connected to another portion of the at least one semiconductor nanostructure; an insulating film adjoining the at least one semiconductor nanostructure and functioning as a gate insulating film; and a gate electrode being capable of controlling electrical conduction of the at least one semiconductor nanostructure via the insulating film, wherein, each of the plurality of semiconductor nanostructures includes a low concentration region having a relatively low doping concentration and a pair of high concentration regions having a higher doping concentration than that of the low concentration region and being connected to both ends of the low concentration region; the doping concentration of the high concentration region is 1×
1019 cm−
3 or more; anda length of the low concentration region is shorter than a length of the gate electrode along a direction from the source electrode to the drain electrode, and the length of the gate electrode is shorter than an interspace between the source electrode and the drain electrode, wherein the length of the semiconductor nanostructures is longer than an interspace between the source electrode and the drain electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A field-effect transistor comprising:
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a substrate; a plurality of semiconductor nanostructures supported by the substrate; a source electrode connected to a portion of at least one semiconductor nanostructure among the plurality of semiconductor nanostructures; a drain electrode connected to another portion of the at least one semiconductor nanostructure; an insulating film adjoining the at least one semiconductor nanostructure and functioning as a gate insulating film; and a gate electrode being capable of controlling electrical conduction of the at least one semiconductor nanostructure via the insulating film, wherein, each of the plurality of semiconductor nanostructures includes a low concentration region having a relatively low doping concentration and a pair of high concentration regions having a higher doping concentration than that of the low concentration region and being connected to both ends of the low concentration region; the doping concentration of the high concentration region is 1×
1019 cm−
3 or more; anda length of the low concentration region is shorter than a length of the gate electrode along a direction from the source electrode to the drain electrode, and the length of the gate electrode is shorter than an interspace between the source electrode and the drain electrode, wherein at least one of the plurality of semiconductor nanostructures are connected to the source electrode and the drain electrode, in at least one of the plurality of semiconductor nanostructures, the low concentration region has an overlap with the gate electrode, and at least one of the plurality of semiconductor nanostructures have no connection with the source electrode or the drain electrode. - View Dependent Claims (17, 18, 19, 20)
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Specification