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Class Information
Number: 438/546
Name: Semiconductor device manufacturing: process > Introduction of conductivity modifying dopant into semiconductive material > Diffusing a dopant > Plural dopants in same region (e.g., through same mask opening, etc.)
Description: Processes for applying multiply electrically active impurities in the same area.

Sub-classes under this class:

Class Number Class Name Patents
438/547 Simultaneously 65

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8703592 Methods of forming semiconductor devices having faceted semiconductor patterns Apr. 22, 2014
8623688 Solar cell and method for manufacturing such a solar cell Jan. 7, 2014
8614115 Photovoltaic solar cell device manufacture Dec. 24, 2013
8574363 Process for production of silicon single crystal, and highly doped N-type semiconductor substrate Nov. 5, 2013
8470677 Method of manufacturing semiconductor device Jun. 25, 2013
8461005 Method of manufacturing doping patterns Jun. 11, 2013
8461032 Use of dopants with different diffusivities for solar cell manufacture Jun. 11, 2013
8377809 Method of fabricating semiconductor device Feb. 19, 2013
8339758 Transient voltage suppressor and method Dec. 25, 2012
8324062 Method for manufacturing a power semiconductor device Dec. 4, 2012
8216926 Method of producing a partly or completely semi-insulating or p-type doped ZnO substrate, substrates obtained, and electronic, electro-optic or optoelectronic devices comprising them Jul. 10, 2012
8143150 Method of fabricating semiconductor device and electronic system Mar. 27, 2012
8129262 Fabrication of field-effect transistor with vertical body-material dopant profile tailored to alleviate punchthrough and reduce current leakage Mar. 6, 2012
8053343 Method for forming selective emitter of solar cell and diffusion apparatus for forming the same Nov. 8, 2011
8013381 Semiconductor device Sep. 6, 2011
7972948 Method for forming bit lines for semiconductor devices Jul. 5, 2011
7936047 Method for realizing a contact of an integrated well in a semiconductor substrate, in particular for a base terminal of a bipolar transistor, with enhancement of the transistor performances May. 3, 2011
7906400 Method of manufacturing a semiconductor device having transistors and semiconductor device having transistors Mar. 15, 2011
7871854 Method of making a vertical photodetector Jan. 18, 2011
7863170 Semiconductor body comprising a transistor structure and method for producing a transistor structure Jan. 4, 2011
7858458 CMOS fabrication Dec. 28, 2010
7846823 Masking paste, method of manufacturing same, and method of manufacturing solar cell using masking paste Dec. 7, 2010
7811915 Method for forming bit lines for semiconductor devices Oct. 12, 2010
7807555 Method of forming the NDMOS device body with the reduced number of masks Oct. 5, 2010
7728404 Punchthrough diode and method of manufacturing thereof Jun. 1, 2010
7713825 LDMOS transistor double diffused region formation process May. 11, 2010
7696073 Method of co-doping group 14 (4B) elements to produce ZnTe system compound semiconductor single crystal Apr. 13, 2010
7645665 Semiconductor device having shallow b-doped region and its manufacture Jan. 12, 2010
7598143 Method for producing an integrated circuit with a trench transistor structure Oct. 6, 2009
7585753 Controlling diffusion in doped semiconductor regions Sep. 8, 2009
7482669 Semiconductor device and method of manufacturing such a device Jan. 27, 2009
7479435 Method of forming a circuit having subsurface conductors Jan. 20, 2009
7429496 Buried photodiode for image sensor with shallow trench isolation technology Sep. 30, 2008
7332439 Metal gate transistors with epitaxial source and drain regions Feb. 19, 2008
7301221 Controlling diffusion in doped semiconductor regions Nov. 27, 2007
7297617 Method for controlling diffusion in semiconductor regions Nov. 20, 2007
7262110 Trench isolation structure and method of formation Aug. 28, 2007
7202146 Process for producing doped semiconductor wafers from silicon, and the wafers produced thereby Apr. 10, 2007
7157779 Semiconductor device with triple surface impurity layers Jan. 2, 2007
7138322 Semiconductor device and fabrication method therefor Nov. 21, 2006
7005340 Method for manufacturing semiconductor device Feb. 28, 2006
7005364 Method for manufacturing semiconductor device Feb. 28, 2006
6984590 Method of manufacturing an EEPROM device Jan. 10, 2006
6936527 Low voltage non-volatile memory cell Aug. 30, 2005
6927137 Forming a retrograde well in a transistor to enhance performance of the transistor Aug. 9, 2005
6887745 Polysilicon thin film transistor and method of forming the same May. 3, 2005
6864144 Method of stabilizing resist material through ion implantation Mar. 8, 2005
6849528 Fabrication of ultra shallow junctions from a solid source with fluorine implantation Feb. 1, 2005
6797594 Semiconductor device and method of manufacturing the same Sep. 28, 2004
6797597 Process for treating complementary regions of the surface of a substrate and semiconductor product obtained by this process Sep. 28, 2004

1 2 3 4

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