EP 1861919 A1 20071205 - AMPLIFIER CIRCUIT
Title (en)
AMPLIFIER CIRCUIT
Title (de)
VERSTÄRKERSCHALTUNG
Title (fr)
CIRCUIT D'AMPLIFICATION
Publication
Application
Priority
- EP 2006002445 W 20060317
- DE 102005013385 A 20050323
Abstract (en)
[origin: WO2006099993A1] The invention relates to an amplifier circuit for amplifying an input signal (i<SUB>EIN</SUB>) with a vertically integrated cascode (10). Said cascode comprises: a collector semiconductor region (1) of a collector (C), a first base semiconductor region (2) pertaining to a first base (B1) and adjacent to the collector semiconductor region (1), a second base semiconductor region (4) pertaining to a second base (B2), an intermediate base semiconductor region (3) which is adjacent to both the first base semiconductor region (2) and the second base semiconductor region (4), and an emitter semiconductor region (5) pertaining to an emitter (E) and adjacent to the second base semiconductor region (4). According to the invention, a signal input (EIN) is connected to the second base (B2) and the first base (Bl) is connected to the second base by means of a network (NW) in such a way that a small signal voltage (U<SUB>Bl</SUB>) on the first base (Bl) is coupled to a small signal voltage (U<SUB>b2</SUB>) on the second base (B2) and/or a small signal current (i<SUB>B2</SUB>) is coupled through the second base (B2).
IPC 8 full level
H03F 1/22 (2006.01); H01L 27/082 (2006.01); H03F 1/32 (2006.01); H03F 3/195 (2006.01)
CPC (source: EP US)
H01L 27/0744 (2013.01 - EP US); H01L 27/0823 (2013.01 - EP US); H03F 1/22 (2013.01 - EP US); H03F 1/32 (2013.01 - EP US); H03F 3/195 (2013.01 - EP US); H03F 2200/18 (2013.01 - EP US)
Citation (search report)
See references of WO 2006099993A1
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
WO 2006099993 A1 20060928; DE 102005013385 A1 20061005; EP 1861919 A1 20071205; US 2008068088 A1 20080320
DOCDB simple family (application)
EP 2006002445 W 20060317; DE 102005013385 A 20050323; EP 06723489 A 20060317; US 86053107 A 20070924