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Class Information
Number: 257/52
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Non-single crystal, or recrystallized, semiconductor material forms part of active junction (including field-induced active junction) > Amorphous semiconductor material
Description: Subject matter wherein the non-single crystal semiconductor material is amorphous, i.e., non-crystalline in the sense that (1) there is either complete disorder in the arrangement of atoms or molecules of the material or (2) there is an absence of any long range structural order that is detectable by electron or X-ray diffraction patterns of the material.


Sub-classes under this class:

Class Number Class Name Patents
257/63 Amorphous semiconductor is alloy or contains material to change band gap (e.g., si x ge 1-x , sin y ) 144
257/57 Field effect device in amorphous semiconductor material 510
257/53 Responsive to nonelectrical external signals (e.g., light) 483
257/62 With impurity other than hydrogen to passivate dangling bonds (e.g., halide) 57


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
7608475 Buffer layer for promoting electron mobility and thin film transistor having the same Oct. 27, 2009
7601984 Field effect transistor with amorphous oxide active layer containing microcrystals and gate electrode opposed to active layer through gate insulator Oct. 13, 2009
7598159 Method of fabricating thin film transistor substrate and thin film transistor substrate produced using the same Oct. 6, 2009
7566950 Flexible pixel array substrate Jul. 28, 2009
7557375 Method for fabricating crystalline silicon Jul. 7, 2009
7501652 Thin film transistor structure and manufacturing method thereof Mar. 10, 2009
7495278 Non-volatile memory and semiconductor device Feb. 24, 2009
7492020 Micro structure with interlock configuration Feb. 17, 2009
7482616 Semiconductor devices having phase change memory cells, electronic systems employing the same and methods of fabricating the same Jan. 27, 2009
7479667 Semiconductor device with modified mobility and thin film transistor having the same Jan. 20, 2009
7476895 Method of fabricating n-type semiconductor diamond, and semiconductor diamond Jan. 13, 2009
7449718 Semiconductor device and method of manufacturing thereof Nov. 11, 2008
7429749 Strained-silicon for CMOS device using amorphous silicon deposition or silicon epitaxial growth Sep. 30, 2008
7427775 Fabricating strained channel epitaxial source/drain transistors Sep. 23, 2008
7413965 Method of manufacturing a thin-film circuit substrate having penetrating structure, and protecting adhesive tape Aug. 19, 2008
7414258 Spacer electrode small pin phase change memory RAM and manufacturing method Aug. 19, 2008
7397063 Semiconductor device Jul. 8, 2008
7391050 Phase change memory device with thermal insulating layers Jun. 24, 2008
7348598 Thin film transistor and liquid crystal display device using the same Mar. 25, 2008
7339188 Polycrystalline silicon film containing Ni Mar. 4, 2008
7288787 Thin-film transistor, method for manufacturing thin-film transistor, and display using thin-film transistors Oct. 30, 2007
7199395 Photovoltaic cell and method of fabricating the same Apr. 3, 2007
7164150 Photovoltaic device and manufacturing method thereof Jan. 16, 2007
7164151 Semiconductor device with pixel portion and driving circuit, and electronic device Jan. 16, 2007
7157780 Semiconductor device and method for producing the same Jan. 2, 2007
7145172 Thin film transistor array substrate Dec. 5, 2006
7138654 Chemical-mechanical polishing proximity correction method and correction pattern thereof Nov. 21, 2006
7126846 Method and driver for programming phase change memory cell Oct. 24, 2006
7126847 Method and driver for programming phase change memory cell Oct. 24, 2006
7122832 Electroluminescence display device with light shielding film Oct. 17, 2006
7119363 Thin film transistor formed on a transparent substrate Oct. 10, 2006
7112819 Semiconductor device and manufacturing method thereof Sep. 26, 2006
7098476 Multilayer interconnect structure containing air gaps and method for making Aug. 29, 2006
7081400 Method for manufacturing polysilicon layer and method for manufacturing thin film transistor thereby Jul. 25, 2006
7082051 Method and driver for programming phase change memory cell Jul. 25, 2006
7038239 Semiconductor element and display device using the same May. 2, 2006
7038935 2-terminal trapped charge memory device with voltage switchable multi-level resistance May. 2, 2006
7030551 Area sensor and display apparatus provided with an area sensor Apr. 18, 2006
7030410 Resistance variable device Apr. 18, 2006
7015507 Thin film transistor and method of fabricating the same Mar. 21, 2006
7009208 Memory device and method of production and method of use of same and semiconductor device and method of production of same Mar. 7, 2006
7005717 Semiconductor device and method Feb. 28, 2006
6998289 Multiple layer phase-change memory Feb. 14, 2006
6984848 Thin film transistor with buffer layer for promoting electron mobility Jan. 10, 2006
6984843 Board for electronic device, electronic device, ferroelectric memory, electronic apparatus, ink-jet recording head, and ink-jet printer Jan. 10, 2006
6959920 Protection against in-process charging in silicon-oxide-nitride-oxide-silicon (SONOS) memories Nov. 1, 2005
6956233 Plated substrate for hard disk medium Oct. 18, 2005
6952022 Image sensor comprising thin film transistor optical sensor having offset region Oct. 4, 2005
6951802 Crystalline semiconductor film, method of manufacturing the same, and semiconductor device Oct. 4, 2005
6951689 Substrate with transparent conductive layer, and photovoltaic element Oct. 4, 2005

1 2 3 4 5 6


 
 
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