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Class Information
Number: 257/E21.356
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 one or two electrodes, e.g., diode, resistor or capacitor with pn or schottky junctions (epo) > Diode (epo) > Break-down diode, e.g., zener diode, avalanche diode (epo) > Zener diode (epo)
Description: This subclass is indented under subclass E21.355. This subclass is substantially the same in scope as ECLA classification H01L21/329B4B.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7612431 |
Trench polysilicon diode |
Nov. 3, 2009 |
| 7564101 |
Semiconductor device for protecting a circuit formed on a semiconductor chip from destruction caused by an electrostatic discharge |
Jul. 21, 2009 |
| 7554157 |
Lateral SOI component having a reduced on resistance |
Jun. 30, 2009 |
| 7544545 |
Trench polysilicon diode |
Jun. 9, 2009 |
| 7419883 |
Method for fabricating a semiconductor structure having selective dopant regions |
Sep. 2, 2008 |
| 7358194 |
Sequential deposition process for forming Si-containing films |
Apr. 15, 2008 |
| 7279773 |
Protection device for handling energy transients |
Oct. 9, 2007 |
| 6969891 |
Device providing protection against electrostatic discharges for microelectronic components on a SOI-type substrate |
Nov. 29, 2005 |
| 6900093 |
Method of fabricating a zener diode chip for use as a shunt in Christmas tree lighting |
May. 31, 2005 |
| 6791161 |
Precision Zener diodes |
Sep. 14, 2004 |
| 6784080 |
Method of manufacturing semiconductor device by sputter doping |
Aug. 31, 2004 |
| 6784520 |
Semiconductor devices constitute constant voltage devices used to raise internal voltage |
Aug. 31, 2004 |
| 6706606 |
Buried zener diode structure and method of manufacture |
Mar. 16, 2004 |
| 6686641 |
Semiconductor device and method for driving the same |
Feb. 3, 2004 |
| 6605859 |
Buried Zener diode structure and method of manufacture |
Aug. 12, 2003 |
| 6586317 |
Method of forming a zener diode in a npn and pnp bipolar process flow that requires no additional steps to set the breakdown voltage |
Jul. 1, 2003 |
| 6495863 |
Semiconductor device having diode for input protection circuit of MOS structure device |
Dec. 17, 2002 |
| 6388308 |
Semiconductor device and method for driving the same |
May. 14, 2002 |
| 6368932 |
Method for producing diodes |
Apr. 9, 2002 |
| 6217951 |
Impurity introduction method and apparatus thereof and method of manufacturing semiconductor device |
Apr. 17, 2001 |
| 5946586 |
Method of manufacturing a glass-covered semiconductor device |
Aug. 31, 1999 |
| 5756387 |
Method for forming zener diode with high time stability and low noise |
May. 26, 1998 |
| 5686319 |
Method for producing a diode |
Nov. 11, 1997 |
| 5605851 |
Method of forming semiconductor device with a buried junction |
Feb. 25, 1997 |
| 5600590 |
Process for the manufacture of an integrated voltage limiter and stabilizer in flash EEPROM memory devices |
Feb. 4, 1997 |
| 5541140 |
Semiconductor arrangement and method for its manufacture |
Jul. 30, 1996 |
| 5486486 |
Process for the manufacture of an integrated voltage limiter and stabilizer in flash EEPROM memory devices |
Jan. 23, 1996 |
| 5430311 |
Constant-voltage diode for over-voltage protection |
Jul. 4, 1995 |
| 5418184 |
Method of manufacturing a semiconductor device in which dopant atoms are provided in a semiconductor body |
May. 23, 1995 |
| 5322803 |
Process for the manufacture of a component to limit the programming voltage and to stabilize the voltage incorporated in an electric device with EEPROM memory cells |
Jun. 21, 1994 |
| 5286660 |
Method for doping a semiconductor wafer having a diffusivity enhancement region |
Feb. 15, 1994 |
| 5179030 |
Method of fabricating a buried zener diode simultaneously with other semiconductor devices |
Jan. 12, 1993 |
| 5089427 |
Semiconductor device and method |
Feb. 18, 1992 |
| 5066991 |
Semiconductor diode and method |
Nov. 19, 1991 |
| 5032534 |
Process for manufacturing a regulation and protection diode |
Jul. 16, 1991 |
| 4978636 |
Method of making a semiconductor diode |
Dec. 18, 1990 |
| 4835111 |
Method of fabricating self-aligned zener diode |
May. 30, 1989 |
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