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Class Information
Number: 257/E29.068
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductors devices adapted for rectifying, amplifying, oscillating, or switching, capacitors, or resistors with at least one potential-jump barrier or surface barrier (epo) > Electrical characteristics due to properties of entire semiconductor body rather than just surface region (epo) > Characterized by materials of semiconductor body (epo)
Description: This subclass is indented under subclass E29.002. This subclass is substantially the same in scope as ECLA classification H01L29/12.

Sub-classes under this class:

Class Number Class Name Patents
257/E29.082 Only element from fourth group of periodic system in uncombined form (epo) 165
257/E29.094 Only group ii-vi compounds (epo) 49
257/E29.089 Only group iii-v compounds (epo) 191
257/E29.087 Selenium or tellurium only (epo) 12
257/E29.1 Semiconductor materials other than group iv, selenium, tellurium, or group iii-v compounds (epo) 63
257/E29.069 Single quantum well structures (epo) 60
257/E29.072 Structures with periodic or quasi-periodic potential variation, (e.g., multiple quantum wells, superlattices) (epo) 57
257/E29.079 Two or more elements from two or more groups of periodic table of elements (e.g., alloys) (epo) 36

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7482621 Rewritable nano-surface organic electrical bistable devices Jan. 27, 2009
7411209 Field-effect transistor and method for manufacturing the same Aug. 12, 2008
7317202 Method for manufacture of an epitaxial structural element layer sequence and optoelectronic semiconductor chip Jan. 8, 2008
7309895 Semiconductor device Dec. 18, 2007
7242041 Field-effect transistors with weakly coupled layered inorganic semiconductors Jul. 10, 2007
7199444 Memory device, programmable resistance memory cell and memory array Apr. 3, 2007
7015546 Deterministically doped field-effect devices and methods of making same Mar. 21, 2006
6933988 Active matrix substrate and method for producing the same Aug. 23, 2005
6900854 Thin film transistor array panel for a liquid crystal display May. 31, 2005
6882051 Nanowires, nanostructures and devices fabricated therefrom Apr. 19, 2005
6867442 Surface-functionalized inorganic semiconductor particles as electrical semiconductors for microelectronics applications Mar. 15, 2005
6723421 Semiconductor with coordinatively irregular structures Apr. 20, 2004
6383286 Method of making semiconductor super-atom and aggregate thereof May. 7, 2002
4261771 Method of fabricating periodic monolayer semiconductor structures by molecular beam epitaxy Apr. 14, 1981
4205329 Periodic monolayer semiconductor structures grown by molecular beam epitaxy May. 27, 1980

1 2 3

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