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Class Information
Number: 257/E29.03
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) > Electrical characteristics due to properties of entire semiconductor body rather than just surface region (epo) > Characterized by specified shape or size of pn junction or by specified impurity concentration gradient within the device (epo) > With semiconductor regions connected to electrode carrying current to be rectified, amplified or switched and such electrode being part of semiconductor device which comprises three or more electrodes (epo) > Emitter regions of bipolar transistors (epo)
Description: This subclass is indented under subclass E29.029. This subclass is substantially the same in scope as ECLA classification H01L29/08B.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7453117 |
Non-volatile semiconductor memory device |
Nov. 18, 2008 |
| 7439607 |
Beta control using a rapid thermal oxidation |
Oct. 21, 2008 |
| 7208387 |
Method for manufacturing compound semiconductor wafer and compound semiconductor device |
Apr. 24, 2007 |
| 7180157 |
Bipolar transistor with a very narrow emitter feature |
Feb. 20, 2007 |
| 7045876 |
Amorphizing ion implant method for forming polysilicon emitter bipolar transistor |
May. 16, 2006 |
| 7041564 |
Method for fabricating a self-aligned bipolar transistor |
May. 9, 2006 |
| 7008852 |
Discontinuous dielectric interface for bipolar transistors |
Mar. 7, 2006 |
| 6989557 |
Bipolar junction transistor and fabricating method |
Jan. 24, 2006 |
| 6984872 |
Method for fabricating an NPN transistor in a BICMOS technology |
Jan. 10, 2006 |
| 6979626 |
Method for fabricating a self-aligned bipolar transistor having increased manufacturability and related structure |
Dec. 27, 2005 |
| 6979884 |
Bipolar transistor having self-aligned silicide and a self-aligned emitter contact border |
Dec. 27, 2005 |
| 6972472 |
Quasi self-aligned single polysilicon bipolar active device with intentional emitter window undercut |
Dec. 6, 2005 |
| 6949437 |
Manufacturing method of semiconductor device including an anisotropic etching step |
Sep. 27, 2005 |
| 6939771 |
Discontinuous dielectric interface for bipolar transistors |
Sep. 6, 2005 |
| 6936519 |
Double polysilicon bipolar transistor and method of manufacture therefor |
Aug. 30, 2005 |
| 6917077 |
Protection diode for improved ruggedness of a radio frequency power transistor and self-defining method to manufacture such protection diode |
Jul. 12, 2005 |
| 6911368 |
Arrangement for preventing short-circuiting in a bipolar double-poly transistor and a method of fabricating such an arrangement |
Jun. 28, 2005 |
| 6905935 |
Method for fabricating a vertical bipolar junction transistor |
Jun. 14, 2005 |
| 6900105 |
Semiconductor device and method of manufacture |
May. 31, 2005 |
| 6897546 |
Semiconductor device including a functional element having a PN junction |
May. 24, 2005 |
| 6894328 |
Self-aligned bipolar transistor having recessed spacers and method for fabricating same |
May. 17, 2005 |
| 6891250 |
Semiconductor device with bipolar transistor |
May. 10, 2005 |
| 6887765 |
Method for manufacturing a bipolar junction transistor |
May. 3, 2005 |
| 6867440 |
Self-aligned bipolar transistor without spacers and method for fabricating same |
Mar. 15, 2005 |
| 6858485 |
Method for creation of a very narrow emitter feature |
Feb. 22, 2005 |
| 6856000 |
Reduce 1/f noise in NPN transistors without degrading the properties of PNP transistors in integrated circuit technologies |
Feb. 15, 2005 |
| 6853017 |
Bipolar transistor structure with ultra small polysilicon emitter |
Feb. 8, 2005 |
| 6818492 |
Semiconductor device and manufacturing method thereof |
Nov. 16, 2004 |
| 6803642 |
Bipolar device having non-uniform depth base-emitter junction |
Oct. 12, 2004 |
| 6797580 |
Method for fabricating a bipolar transistor in a BiCMOS process and related structure |
Sep. 28, 2004 |
| 6797578 |
Method for fabrication of emitter of a transistor and related structure |
Sep. 28, 2004 |
| 6794730 |
High performance PNP bipolar device fully compatible with CMOS process |
Sep. 21, 2004 |
| 6784467 |
Method for fabricating a self-aligned bipolar transistor and related structure |
Aug. 31, 2004 |
| 6784065 |
Bipolar transistor with ultra small self-aligned polysilicon emitter and method of forming the transistor |
Aug. 31, 2004 |
| 6765243 |
HBT having a controlled emitter window opening |
Jul. 20, 2004 |
| 6764913 |
Method for controlling an emitter window opening in an HBT and related structure |
Jul. 20, 2004 |
| 6759731 |
Bipolar junction transistor and fabricating method |
Jul. 6, 2004 |
| 6740563 |
Amorphizing ion implant method for forming polysilicon emitter bipolar transistor |
May. 25, 2004 |
| 6734073 |
Method for manufacturing a bipolar junction transistor |
May. 11, 2004 |
| 6730981 |
Bipolar transistor with inclined epitaxial layer |
May. 4, 2004 |
| 6703283 |
Discontinuous dielectric interface for bipolar transistors |
Mar. 9, 2004 |
| 6686251 |
Method for fabricating a bipolar transistor having self-aligned emitter and base |
Feb. 3, 2004 |
| 6682992 |
Method of controlling grain size in a polysilicon layer and in semiconductor devices having polysilicon structures |
Jan. 27, 2004 |
| 6657281 |
Bipolar transistor with a low K material in emitter base spacer regions |
Dec. 2, 2003 |
| 6586307 |
Method for controlling an emitter window opening in an HBT and related structure |
Jul. 1, 2003 |
| 6541336 |
Method of fabricating a bipolar transistor having a realigned emitter |
Apr. 1, 2003 |
| 6475887 |
Method of manufacturing semiconductor device |
Nov. 5, 2002 |
| 6468871 |
Method of forming bipolar transistor salicided emitter using selective laser annealing |
Oct. 22, 2002 |
| 6451660 |
Method of forming bipolar transistors comprising a native oxide layer formed on a substrate by rinsing the substrate in ozonated water |
Sep. 17, 2002 |
| 6448125 |
Electronic power device integrated on a semiconductor material and related manufacturing process |
Sep. 10, 2002 |
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