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Class Information
Number: 257/E29.264
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) > Types of semiconductor device (epo) > Controllable by only signal applied to control electrode (e.g., base of bipolar transistor, gate of field-effect transistor) (epo) > Unipolar device (epo) > Field-effect transistor (epo) > With field effect produced by insulated gate (epo) > With multiple gate structure (epo)
Description: This subclass is indented under subclass E29.255. This subclass is substantially the same in scope as ECLA classification H01L29/78E.

Sub-classes under this class:

Class Number Class Name Patents
257/E29.265 Structure comprising mos gate and at least one non-mos gate (e.g., jfet or mesfet gate) (epo) 91

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8679906 Asymmetric multi-gated transistor and method for forming Mar. 25, 2014
8679918 Multiple-gate device with floating back gate Mar. 25, 2014
8680588 Field effect transistor with buried gate pattern Mar. 25, 2014
8673712 Power transistor with high voltage counter implant Mar. 18, 2014
8659114 Semiconductor device Feb. 25, 2014
8659091 Embedded stressors for multigate transistor devices Feb. 25, 2014
8652889 Fin-transistor formed on a patterned STI region by late fin etch Feb. 18, 2014
8637935 Semiconductor device including embedded isolation regions and method for forming the same Jan. 28, 2014
8633471 Apparatus and methods for forming a modulation doped non-planar transistor Jan. 21, 2014
8629512 Gate stack of fin field effect transistor with slanted sidewalls Jan. 14, 2014
8629511 Mask free protection of work function material portions in wide replacement gate electrodes Jan. 14, 2014
8629500 Integrated circuit arrangement comprising a field effect transistor, especially a tunnel field effect transistor Jan. 14, 2014
8629039 Substrate fins with different heights Jan. 14, 2014
8623719 Method for forming and structure of a recessed source/drain strap for a MUGFET Jan. 7, 2014
8618609 Apparatus for improving multi-gate device performance Dec. 31, 2013
8614487 Split dual gate field effect transistor Dec. 24, 2013
8598641 Sea-of-fins structure on a semiconductor substrate and method of fabrication Dec. 3, 2013
8598653 FinFET having cross-hair cells Dec. 3, 2013
8592920 Semiconductor device and manufacturing method of the same Nov. 26, 2013
8587031 Dual-gate normally-off nitride transistors Nov. 19, 2013
8580643 Threshold voltage adjustment in a Fin transistor by corner implantation Nov. 12, 2013
8564069 Field effect transistors with low body resistance and self-balanced body potential Oct. 22, 2013
8525234 Formation of FinFET gate spacer Sep. 3, 2013
8513107 Replacement gate FinFET devices and methods for forming the same Aug. 20, 2013
8513072 Manufacturing method of semiconductor device with element isolation region formed within Aug. 20, 2013
8492832 Semiconductor device Jul. 23, 2013
8492230 Semiconductor device and method of manufacturing the same Jul. 23, 2013
8492210 Transistor, semiconductor device comprising the transistor and method for manufacturing the same Jul. 23, 2013
8487363 Method for manufacturing semiconductor device Jul. 16, 2013
8450813 Fin transistor structure and method of fabricating the same May. 28, 2013
8450194 Method to modify the shape of a cavity using angled implantation May. 28, 2013
8445973 Fin transistor structure and method of fabricating the same May. 21, 2013
8441074 Substrate fins with different heights May. 14, 2013
8421156 FET with self-aligned back gate Apr. 16, 2013
8415751 Method to reduce contact resistance of N-channel transistors by using a III-V semiconductor interlayer in source and drain Apr. 9, 2013
8410519 Integrated circuits with aligned (100) NMOS and (110) PMOS FinFET sidewall channels Apr. 2, 2013
8404545 Tunnel field-effect transistor with gated tunnel barrier Mar. 26, 2013
8378394 Method for forming and structure of a recessed source/drain strap for a MUGFET Feb. 19, 2013
8373165 Semiconductor integrated circuit device and a method of fabricating the same Feb. 12, 2013
8314464 Semiconductor device and manufacturing method thereof Nov. 20, 2012
8299546 Semiconductor devices with vertical extensions for lateral scaling Oct. 30, 2012
8293602 Method of fabricating a finFET having cross-hair cells Oct. 23, 2012
8288759 Vertical stacking of carbon nanotube arrays for current enhancement and control Oct. 16, 2012
8258562 Semiconductor device having tri-gate structure and manufacturing method thereof Sep. 4, 2012
8237226 Semiconductor device and method of fabricating the same Aug. 7, 2012
8222094 Method for manufacturing an EEPROM cell Jul. 17, 2012
8217432 Field effect transistor and electric circuit Jul. 10, 2012
8217463 Methods for protecting gate stacks during fabrication of semiconductor devices and semiconductor devices fabricated from such methods Jul. 10, 2012
8211771 Multiple-gate transistors and processes of making same Jul. 3, 2012
8207582 Semiconductor devices including dual gate structures Jun. 26, 2012

1 2 3 4 5 6 7

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