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Class Information
Number: 257/E27.084
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Device consisting of a plurality of semiconductor or other solid state components formed in or on a common substrate, e.g., integrated circuit device (epo) > Including semiconductor component with at least one potential barrier or surface barrier adapted for rectifying, oscillating, amplifying, or switching, or including integrated passive circuit elements (epo) > With semiconductor substrate only (epo) > Including a plurality of individual components in a repetitive configuration (epo) > Including field-effect component (epo) > Dynamic random access memory, dram, structure (epo)
Description: This subclass is indented under subclass E27.0081. This subclass is substantially the same in scope as ECLA classification H01L27/108.










Sub-classes under this class:

Class Number Class Name Patents
257/E27.085 One-transistor memory cell structure, i.e., each memory cell containing only one transistor (epo) 563
257/E27.097 Peripheral structure (epo) 408


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Patent Number Title Of Patent Date Issued
8710566 Techniques for forming a contact to a buried diffusion layer in a semiconductor memory device Apr. 29, 2014
8710570 Semiconductor device having vertical channel Apr. 29, 2014
8692372 Semiconductor device having impurity doped polycrystalline layer including impurity diffusion prevention layer and dynamic random memory device including the semiconductor device Apr. 8, 2014
8674421 Semiconductor device Mar. 18, 2014
8674455 Semiconductor device Mar. 18, 2014
8648403 Dynamic memory cell structures Feb. 11, 2014
8629528 Semiconductor memory device and method for manufacturing the same Jan. 14, 2014
8629559 Stress reduction apparatus with an inverted cup-shaped layer Jan. 14, 2014
8610249 Non-planar capacitor and method of forming the non-planar capacitor Dec. 17, 2013
8610189 Semiconductor device enabling further microfabrication Dec. 17, 2013
8610219 Semiconductor device having a memory cell section, an adjacent circuit section, and silicide formed on an impurity diffused region Dec. 17, 2013
8609457 Semiconductor device with DRAM bit lines made from same material as gate electrodes in non-memory regions of the device, and methods of making same Dec. 17, 2013
8610187 Semiconductor device Dec. 17, 2013
8592282 Nonvolatile memory elements Nov. 26, 2013
8587046 System with logic and embedded MIM capacitor Nov. 19, 2013
8564037 Semiconductor device having isolation groove and device formation portion Oct. 22, 2013
8557660 Semiconductor device and method for forming the same Oct. 15, 2013
8558297 MRAM cell structure Oct. 15, 2013
8552487 SOI trench DRAM structure with backside strap Oct. 8, 2013
8546876 Systems and devices including multi-transistor cells and methods of using, making, and operating the same Oct. 1, 2013
8546888 Isolation regions Oct. 1, 2013
8541284 Method of manufacturing string floating gates with air gaps in between Sep. 24, 2013
8536635 Semiconductor structure and fabrication method thereof Sep. 17, 2013
8537600 Low off-state leakage current semiconductor memory device Sep. 17, 2013
8537610 Techniques for providing a semiconductor memory device Sep. 17, 2013
8519462 6F2 DRAM cell Aug. 27, 2013
8518775 Integration of eNVM, RMG, and HKMG modules Aug. 27, 2013
8502186 Semiconductor memory device Aug. 6, 2013
8497541 Memory having buried digit lines and methods of making the same Jul. 30, 2013
8497544 Repairing defects in a nonvolatile semiconductor memory module utilizing a heating element Jul. 30, 2013
8492811 Self-aligned strap for embedded capacitor and replacement gate devices Jul. 23, 2013
8482009 Silicon-on-insulator substrate with built-in substrate junction Jul. 9, 2013
8482045 Semiconductor memory device having vertical channel transistor and method for fabricating the same Jul. 9, 2013
8471320 Memory layout structure Jun. 25, 2013
8466504 DRAM with dopant stop layer and method of fabricating the same Jun. 18, 2013
8466556 Semiconductor device and method of manufacturing the same Jun. 18, 2013
8455868 Semiconductor device Jun. 4, 2013
8455875 Embedded DRAM for extremely thin semiconductor-on-insulator Jun. 4, 2013
8450786 Semiconductor devices including buried gate electrodes May. 28, 2013
8450785 Systems and devices including multi-gate transistors and methods of using, making, and operating the same May. 28, 2013
8450783 Semiconductor device May. 28, 2013
8445946 Gated diode memory cells May. 21, 2013
8441053 Vertical capacitor-less DRAM cell, DRAM array and operation of the same May. 14, 2013
8426903 Semiconductor device and method of manufacturing same Apr. 23, 2013
8421146 Semiconductor device having vertical transistor, manufacturing method thereof, and data processing system Apr. 16, 2013
8415722 Memory devices and memory cells Apr. 9, 2013
8399919 Unit block circuit of semiconductor device Mar. 19, 2013
8399916 Semiconductor device and manufacturing method thereof Mar. 19, 2013
8395235 Semiconductor device Mar. 12, 2013
8391057 Switch and method of forming the same Mar. 5, 2013

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