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Class Information
Number: 438/309
Name: Semiconductor device manufacturing: process > Forming bipolar transistor by formation or alteration of semiconductive active regions
Description:










Sub-classes under this class:

Class Number Class Name Patents
438/322 Complementary bipolar transistors 167
438/351 Direct application of electrical current 12
438/346 Emitter dip prevention or utilization 11
438/350 Forming base region of specified dopant concentration profile (e.g., inactive base region more heavily doped than active base region, etc.) 188
438/334 Forming inverted transistor structure 40
438/335 Forming lateral transistor structure 99
438/352 Fusion or solidification of semiconductor region 9
438/310 Gettering of semiconductor substrate 73
438/333 Having fuse or integral short 98
438/312 Having heterojunction 379
438/342 Having multiple emitter or collector structure 85
438/328 Including diode 227
438/353 Including isolation structure 142
438/329 Including passive device (e.g., resistor, capacitor, etc.) 183
438/340 Making plural bipolar transistors of differing electrical characteristics 115
438/343 Mesa or stacked emitter 125
438/311 On insulating substrate or layer (i.e., soi type) 442
438/349 Pedestal base 52
438/347 Permeable or metal base 37
438/378 Radiation or energy treatment modifying properties of semiconductor regions of substrate (e.g., thermal, corpuscular, electromagnetic, etc.) 140
438/364 Self-aligned 117
438/348 Sidewall base contact 95
438/341 Using epitaxial lateral overgrowth 155
438/345 Walled emitter 75
438/344 Washed emitter 13


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

Patent Number Title Of Patent Date Issued
8067290 Bipolar transistor with base-collector-isolation without dielectric Nov. 29, 2011
8058121 Method for fabricating semiconductor device, method for fabricating bipolar-CMOS-DMOS Nov. 15, 2011
8058124 Method of manufacturing a semiconductor device Nov. 15, 2011
8053843 Integrated electrostatic discharge (ESD) device Nov. 8, 2011
8043910 Integrated semiconductor structure including a heterojunction bipolar transistor and a Schottky diode Oct. 25, 2011
8035196 Methods of counter-doping collector regions in bipolar transistors Oct. 11, 2011
8030167 Varied impurity profile region formation for varying breakdown voltage of devices Oct. 4, 2011
8026146 Method of manufacturing a bipolar transistor Sep. 27, 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
8003473 Bipolar transistor with silicided sub-collector Aug. 23, 2011
8003475 Method for fabricating a transistor structure Aug. 23, 2011
7989301 Semiconductor device with bipolar transistor and method of fabricating the same Aug. 2, 2011
7981753 Method and device for electrostatic discharge protection Jul. 19, 2011
7951681 Substrate-triggered bipolar junction transistor and ESD protection circuit May. 31, 2011
7939414 Ion implantation and process sequence to form smaller base pick-up May. 10, 2011
7932155 Structure and method for performance improvement in vertical bipolar transistors Apr. 26, 2011
7927955 Adjustable bipolar transistors formed using a CMOS process Apr. 19, 2011
7915709 Semiconductor device and method of manufacturing the same Mar. 29, 2011
7910448 Method for fabricating a mono-crystalline emitter Mar. 22, 2011
7910447 System and method for providing a self aligned bipolar transistor using a simplified sacrificial nitride emitter Mar. 22, 2011
7897452 Method of producing a semiconductor device with an aluminum or aluminum alloy rear electrode Mar. 1, 2011
7898061 Structure for performance improvement in vertical bipolar transistors Mar. 1, 2011
7888199 PNP light emitting transistor and method Feb. 15, 2011
7875915 Integrated circuit comprising a photodiode of the floating substrate type and corresponding fabrication process Jan. 25, 2011
7871893 Method for non-selective shallow trench isolation reactive ion etch for patterning hybrid-oriented devices compatible with high-performance highly-integrated logic devices Jan. 18, 2011
7872326 Array of vertical bipolar junction transistors, in particular selectors in a phase change memory device Jan. 18, 2011
7871847 System and method for high temperature compact thermoelectric generator (TEG) device construction Jan. 18, 2011
7871882 Method of fabricating a deep trench insulated gate bipolar transistor Jan. 18, 2011
7868335 Modulation doped super-lattice sub-collector for high-performance HBTs and BJTs Jan. 11, 2011
7863148 Method for integrating SiGe NPN and vertical PNP devices Jan. 4, 2011
7855094 Photo-detector for detecting image signal of infrared laser radar and method of manufacturing the same Dec. 21, 2010
7846805 Self-aligned vertical PNP transistor for high performance SiGe CBiCMOS process Dec. 7, 2010
7816221 Dielectric ledge for high frequency devices Oct. 19, 2010
7811894 Bipolar junction transistor and manufacturing method thereof Oct. 12, 2010
7807539 Ion implantation and process sequence to form smaller base pick-up Oct. 5, 2010
7803676 Semiconductor device and method of fabricating the same Sep. 28, 2010
7800143 Dynamic random access memory with an amplified capacitor Sep. 21, 2010
7795102 ESD high frequency diodes Sep. 14, 2010
7795103 Bipolar transistors with depleted emitter Sep. 14, 2010
7790519 Semiconductor device and manufacturing method thereof Sep. 7, 2010
7785974 Methods of employing a thin oxide mask for high dose implants Aug. 31, 2010
RE41477 Semiconductor device with a reduced mask count buried layer Aug. 10, 2010
7755102 High breakdown voltage diode and method of forming same Jul. 13, 2010
7755168 Semiconductor device provided with floating electrode Jul. 13, 2010
7754540 Method of forming a SiGe DIAC ESD protection structure Jul. 13, 2010
7745291 Method of fabricating a high-voltage transistor with an extended drain structure Jun. 29, 2010
7719087 Semiconductor device May. 18, 2010
7719031 Heterojunction biploar transistor and method for manufacturing same May. 18, 2010
7718486 Structures and methods for fabricating vertically integrated HBT-FET device May. 18, 2010
7713887 Method for forming isolation layer in semiconductor device May. 11, 2010

1 2 3 4 5 6 7 8 9 10 11










 
 
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