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Class Information
Number: 438/365
Name: Semiconductor device manufacturing: process > Forming bipolar transistor by formation or alteration of semiconductive active regions > Self-aligned > Forming active region from adjacent doped polycrystalline or amorphous semiconductor
Description: Process having an active region (e.g., base, emitter, or collector) formed of polycrystalline or amorphous semiconductor.










Sub-classes under this class:

Class Number Class Name Patents
438/366 Having sidewall 201
438/368 Simultaneously outdiffusing plural dopants from polysilicon or amorphous semiconductor 112


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8704217 Field effect transistor, semiconductor device and semiconductor device manufacturing method Apr. 22, 2014
8486797 Bipolar junction transistor with epitaxial contacts Jul. 16, 2013
8274081 Semiconductor constructions Sep. 25, 2012
8252668 Photoelectric conversion device fabrication method Aug. 28, 2012
8120242 Transistor and process of producing the same, light-emitting device, and display Feb. 21, 2012
8062949 Nanowire transistor with surrounding gate Nov. 22, 2011
8021951 Formation of longitudinal bipolar transistor with base region in trenches having emitter and collector regions disposed along portions of side surfaces of base region Sep. 20, 2011
7935606 Transistor manufacture May. 3, 2011
7902051 Method for fabrication of single crystal diodes for resistive memories Mar. 8, 2011
7892935 Semiconductor process Feb. 22, 2011
7893476 Tunnel effect transistors based on silicon nanowires Feb. 22, 2011
7868437 Mounting structure for IC tag and IC chip for mounting Jan. 11, 2011
7790582 Method for fabricating polysilicon liquid crystal display device Sep. 7, 2010
7785991 Process for integrating a III-N type component on a (001) nominal silicium substrate Aug. 31, 2010
7772048 Forming semiconductor fins using a sacrificial fin Aug. 10, 2010
7736962 Advanced JFET with reliable channel control and method of manufacture Jun. 15, 2010
7736997 Production method of flexible electronic device Jun. 15, 2010
7670917 Semiconductor device made by using a laser anneal to incorporate stress into a channel region Mar. 2, 2010
7659213 Transistor having an embedded tensile strain layer with reduced offset to the gate electrode and a method for forming the same Feb. 9, 2010
7642168 System and method for providing a self aligned bipolar transistor using a sacrificial polysilicon external base Jan. 5, 2010
7635634 Dielectric apparatus and associated methods Dec. 22, 2009
7625803 Memory devices, electronic systems, and methods of forming memory devices Dec. 1, 2009
7585740 Fully silicided extrinsic base transistor Sep. 8, 2009
7557010 Method to improve writer leakage in a SiGe bipolar device Jul. 7, 2009
7541250 Method for forming a self-aligned twin well region with simplified processing Jun. 2, 2009
7479438 Method to improve performance of a bipolar device using an amorphizing implant Jan. 20, 2009
7465638 Bipolar transistor and fabricating method thereof Dec. 16, 2008
7446009 Manufacturing method for semiconductor device Nov. 4, 2008
7425491 Nanowire transistor with surrounding gate Sep. 16, 2008
7343661 Method for making condenser microphones Mar. 18, 2008
7232732 Semiconductor device with a toroidal-like junction Jun. 19, 2007
7169677 Method for producing a spacer structure Jan. 30, 2007
7098113 Method and system for providing a power lateral PNP transistor using a buried power buss Aug. 29, 2006
7005359 Bipolar junction transistor with improved extrinsic base region and method of fabrication Feb. 28, 2006
6951802 Crystalline semiconductor film, method of manufacturing the same, and semiconductor device Oct. 4, 2005
6924216 Semiconductor device having improved doping profiles and method of improving the doping profiles of a semiconductor device Aug. 2, 2005
6919253 Method of forming a semiconductor device including simultaneously forming a single crystalline epitaxial layer and a polycrystalline or amorphous layer Jul. 19, 2005
6913981 Method of fabricating a bipolar transistor using selective epitaxially grown SiGe base layer Jul. 5, 2005
6910637 Stacked small memory card Jun. 28, 2005
6900519 Diffused extrinsic base and method for fabrication May. 31, 2005
6887765 Method for manufacturing a bipolar junction transistor May. 3, 2005
6878577 Method of forming LDD of semiconductor devices Apr. 12, 2005
6872638 Method of manufacturing a semiconductor device Mar. 29, 2005
6869854 Diffused extrinsic base and method for fabrication Mar. 22, 2005
6867105 Bipolar transistor and method of fabricating a bipolar transistor Mar. 15, 2005
6858512 Semiconductor device and method of producing the same Feb. 22, 2005
6830982 Method for reducing extrinsic base resistance and improving manufacturability in an NPN transistor Dec. 14, 2004
6815302 Method of making a bipolar transistor with an oxygen implanted emitter window Nov. 9, 2004
6815269 Thin-film transistor and method for manufacturing the same Nov. 9, 2004
6800541 Pulse laser irradiation method for forming a semiconductor thin film Oct. 5, 2004

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