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Class Information
Number: 257/E21.372
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Processes or apparatus adapted for manufacture or treatment of semiconductor or solid-state devices or of parts thereof (epo) > Manufacture or treatment of semiconductor device (epo) > Device having at least one potential-jump barrier or surface barrier, e.g., pn junction, depletion layer, carrier concentration layer (epo) > Device having semiconductor body comprising group iv elements or group iii-v compounds with or without impurities, e.g., doping materials (epo) > Multi-step process for manufacture of device of bipolar type, e.g., diodes, transistors, thyristors, resistors, capacitors) (epo) > Device comprising three or more electrodes (epo) > Transistor (epo) > Bipolar thin film transistor (epo)
Description: This subclass is indented under subclass E21.37. This subclass is substantially the same in scope as ECLA classification H01L21/331E.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8686424 Bipolar transistor manufacturing method, bipolar transistor and integrated circuit Apr. 1, 2014
8652919 Tunable semiconductor device Feb. 18, 2014
8629029 Vertical SOI bipolar junction transistor and manufacturing method thereof Jan. 14, 2014
8586441 Germanium lateral bipolar junction transistor Nov. 19, 2013
8575659 Carbon-beryllium combinationally doped semiconductor Nov. 5, 2013
8557670 SOI lateral bipolar junction transistor having a wide band gap emitter contact Oct. 15, 2013
8558282 Germanium lateral bipolar junction transistor Oct. 15, 2013
8551824 Method for manufacturing semiconductor device Oct. 8, 2013
8518755 Method for manufacturing semiconductor device Aug. 27, 2013
8501595 Thin film containing nanocrystal particles and method for preparing the same Aug. 6, 2013
8476122 Etching method and method for manufacturing semiconductor device Jul. 2, 2013
8436354 Layer having functionality, method for forming flexible substrate having the same, and method for manufacturing semiconductor device May. 7, 2013
8420458 Semiconductor device and method of producing same Apr. 16, 2013
8421135 Semiconductor device, and manufacturing method thereof Apr. 16, 2013
8377743 Laser annealing of metal oxide semiconductor on temperature sensitive substrate formations Feb. 19, 2013
8178949 Bipolar semiconductor device, method for producing the same, and method for controlling Zener voltage May. 15, 2012
8173494 Thin film transistor array and method of manufacturing the same May. 8, 2012
8173492 Method of manufacturing thin film transistor substrate May. 8, 2012
8168504 Integrated circuit comprising a gradually doped bipolar transistor and corresponding fabrication process May. 1, 2012
8129248 Method of producing bipolar transistor structures in a semiconductor process Mar. 6, 2012
8124489 Monolithic microwave integrated circuit device and method of forming the same Feb. 28, 2012
8062936 Method of fabricating array substrate Nov. 22, 2011
8030167 Varied impurity profile region formation for varying breakdown voltage of devices Oct. 4, 2011
8030178 Layer having functionality, method for forming flexible substrate having the same, and method for manufacturing semiconductor device Oct. 4, 2011
7989240 Methods of manufacturing active matrix substrate and organic light-emitting display device Aug. 2, 2011
7985608 Methods of manufacturing active matrix substrate and organic light emitting display device Jul. 26, 2011
7960219 Thin-film transistor substrate and method of fabricating the same Jun. 14, 2011
7943441 Method of forming thin film transistor array substrate May. 17, 2011
7932145 Method of forming a bipolar transistor and semiconductor component thereof Apr. 26, 2011
7910447 System and method for providing a self aligned bipolar transistor using a simplified sacrificial nitride emitter Mar. 22, 2011
7897452 Method of producing a semiconductor device with an aluminum or aluminum alloy rear electrode Mar. 1, 2011
7888225 Method of manufacturing an electronic device including a PNP bipolar transistor Feb. 15, 2011
7855119 Method for forming polycrystalline thin film bipolar transistors Dec. 21, 2010
7846785 Memory cell that employs a selectively deposited reversible resistance-switching element and methods of forming the same Dec. 7, 2010
7838378 Semiconductor device and manufacturing method thereof Nov. 23, 2010
7824978 Bipolar transistor with high dynamic performances Nov. 2, 2010
7804095 Image display device and manufacturing method for the same Sep. 28, 2010
7790534 Method to form low-defect polycrystalline semiconductor material for use in a transistor Sep. 7, 2010
7763518 Ultra-thin SOI vertical bipolar transistors with an inversion collector on thin-buried oxide (BOX) for low substrate-bias operation and methods thereof Jul. 27, 2010
7700418 Method for production of thin-film semiconductor device Apr. 20, 2010
7696034 Methods of base formation in a BiCOMS process Apr. 13, 2010
7691716 Vertical bipolar transistor with a majority carrier accumulation layer as a subcollector for SOI BiCMOS with reduced buried oxide thickness for low-substrate bias operation Apr. 6, 2010
7682883 Manufacturing method of thin film transistor array substrate and liquid crystal display panel Mar. 23, 2010
7678624 Semiconductor device and method for manufacturing same Mar. 16, 2010
7645648 Liquid crystal display Jan. 12, 2010
7632740 Layer having functionality, method for forming flexible substrate having the same, and method for manufacturing semiconductor device Dec. 15, 2009
7611929 Method for fabricating TFT array substrate Nov. 3, 2009
7611955 Method of forming a bipolar transistor and semiconductor component thereof Nov. 3, 2009
7608532 Method of growing nitride semiconductor material Oct. 27, 2009
7608494 Thin film transistor array panel and a method for manufacturing the same Oct. 27, 2009

1 2 3 4










 
 
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