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Class Information
Number: 257/544
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Integrated circuit structure with electrically isolated components > With pn junction isolation
Description: Subject matter wherein the means for electrically isolating different devices from each other includes a pn junction located between the devices to be isolated.

Sub-classes under this class:

Class Number	Class Name	Patents
257/548	At least three regions of alternating conductivity types with dopant concentration gradients decreasing from surface of semiconductor (e.g., "triple-diffused" integrated circuit)	66
257/551	Including voltage reference element (e.g., avalanche diode, so-called "zener diode" with breakdown voltage greater than 6 volts or with positive temperature coefficient of breakdown voltage)	136
257/552	With bipolar transistor structure	191
257/550	With lightly doped surface layer of one conductivity type on substrate of opposite conductivity type, having plural heavily doped portions of the one conductivity type between the layer and substrate, different ones of the heavily doped portions having differing depths or physical extent	60
257/545	With means to control isolation junction capacitance (e.g., lightly doped layer at isolation junction to increase depletion layer width)	34
257/547	With structural means to control parasitic transistor action or leakage current	144
257/546	With structural means to protect against excess or reversed polarity voltage	220
257/549	With substrate and lightly doped surface layer of same conductivity type, separated by subsurface heavily doped region of opposite conductivity type (e.g., "collector diffused isolation" integrated circuit)	83

Patents under this class:

1 2 3 4

Patent Number	Title Of Patent	Date Issued
7449711	Phase-change-type semiconductor memory device	Nov. 11, 2008
7443009	N well implants to separate blocks in a flash memory device	Oct. 28, 2008
7419868	Gated diode nonvolatile memory process	Sep. 2, 2008
7404247	Method for making a pressure sensor	Jul. 29, 2008
7394143	Semiconductor integrated circuit device	Jul. 1, 2008
7391045	Three-dimensional phase-change memory	Jun. 24, 2008
7348657	Electrostatic discharge protection networks for triple well semiconductor devices	Mar. 25, 2008
7323763	Semiconductor device having an improved voltage controlled oscillator	Jan. 29, 2008
7310259	Access circuit and method for allowing external test voltage to be applied to isolated wells	Dec. 18, 2007
7276772	Semiconductor device	Oct. 2, 2007
7276769	Semiconductor integrated circuit device	Oct. 2, 2007
7259426	Semiconductor device and its manufacturing method	Aug. 21, 2007
7205628	Semiconductor device	Apr. 17, 2007
7196373	NAND flash memory device and method of forming a well of a NAND flash memory device	Mar. 27, 2007
7196392	Semiconductor structure for isolating integrated circuits of various operation voltages	Mar. 27, 2007
7193292	Fuse structure with charge protection circuit	Mar. 20, 2007
7138686	Integrated circuit with improved signal noise isolation and method for improving signal noise isolation	Nov. 21, 2006
7138701	Electrostatic discharge protection networks for triple well semiconductor devices	Nov. 21, 2006
7135755	Integrated semiconductor device providing for preventing the action of parasitic transistors	Nov. 14, 2006
7116570	Access circuit and method for allowing external test voltage to be applied to isolated wells	Oct. 3, 2006
7098512	Layout patterns for deep well region to facilitate routing body-bias voltage	Aug. 29, 2006
7078782	Semiconductor device	Jul. 18, 2006
7026704	Semiconductor device for reducing plasma charging damage	Apr. 11, 2006
6972476	Diode and diode string structure	Dec. 6, 2005
6936898	Diagonal deep well region for routing body-bias voltage for MOSFETS in surface well regions	Aug. 30, 2005
6909150	Mixed signal integrated circuit with improved isolation	Jun. 21, 2005
6879023	Seal ring for integrated circuits	Apr. 12, 2005
6867464	Supply voltage reduction circuit for integrated circuit	Mar. 15, 2005
6844588	Non-volatile memory	Jan. 18, 2005
6828685	Memory device having a semiconducting polymer film	Dec. 7, 2004
6822313	Diode	Nov. 23, 2004
6815799	Semiconductor integrated circuit device	Nov. 9, 2004
6815714	Conductive structure in a semiconductor material	Nov. 9, 2004
6812486	Conductive structure and method of forming the structure	Nov. 2, 2004
6727573	Semiconductor device having triple well structure	Apr. 27, 2004
6710427	Distributed power device with dual function minority carrier reduction	Mar. 23, 2004
6686618	Semiconductor memory having a plurality of memory-cell arrays	Feb. 3, 2004
6686634	Semiconductor device and a method of producing the same	Feb. 3, 2004
6653708	Complementary metal oxide semiconductor with improved single event performance	Nov. 25, 2003
6635944	Power semiconductor component having a PN junction with a low area edge termination	Oct. 21, 2003
6630700	NMOS circuit in isolated wells that are connected by a bias stack having pluralirty of diode elements	Oct. 7, 2003
6628852	Isolation device	Sep. 30, 2003
6627961	Hybrid IGBT and MOSFET for zero current at zero voltage	Sep. 30, 2003
6617646	Reduced substrate capacitance high performance SOI process	Sep. 9, 2003
6590273	Semiconductor integrated circuit device and manufacturing method thereof	Jul. 8, 2003
6563169	Semiconductor device with high withstand voltage and a drain layer having a highly conductive region connectable to a diffused source layer by an inverted layer	May. 13, 2003
6563181	High frequency signal isolation in a semiconductor device	May. 13, 2003
6559515	Insulating wall between power components	May. 6, 2003
6552397	Charge pump device formed on silicon-on-insulator and operation method	Apr. 22, 2003
6534829	Semiconductor device and method for fabricating the same	Mar. 18, 2003