31.
    发明专利
    未知

    公开(公告)号:FR2806831B1

    公开(公告)日:2003-09-19

    申请号:FR0003845

    申请日:2000-03-27

    Abstract: A method for the fabrication of a bipolar transistor consists of forming, using non-selective epitaxy, a semiconductor region with a silicon-germanium heterojunction (1) extending over an active region (ZA) of a semiconductor substrate and an insulating region (STI) delimiting the active region, and incorporating the region of the intrinsic base of the transistor; an emitter region (8) situated above the active region and coming into contact with the upper surface of the heterojunction semiconductor region (1); a layer of polysilicon (30) forming the region of the extrinsic base of the transistor, situated either side of the emitter region (8) and separated from the heterojunction semiconductor region by a separation layer incorporating an electrical liaison conductor (74) part situated in the external neighbourhood of the emitter region, this liaison part assuring an electrical contact between the extrinsic base and the intrinsic base. An Independent claim is included for such a bipolar transistor.

    34.
    发明专利
    未知

    公开(公告)号:FR2799048A1

    公开(公告)日:2001-03-30

    申请号:FR9911895

    申请日:1999-09-23

    Abstract: Bipolar transistor fabrication includes a step of producing a base region (8) comprising an extrinsic base (800) and an intrinsic base, and a step of producing an emitter block having a narrower lower part located in an emitter-window above the intrinsic base. Production of the extrinsic base (800) involves dopant implantation after defining the emitter-window, on both sides at a determined distance from the lateral limits of the emitter-window, with self-alignment about the emitter-window, and before emitter block formation. An oxide block (13) is formed on an insulating layer located above the intrinsic base. The oxide block (13) has a narrower lower part (130) located in an etched hole of the insulating layer and whose dimensions correspond to those of the emitter-window, and an upper wider part (131) resting on the insulating layer. The lateral sides of the etched hole of the insulating layer are self-aligned with the lateral sides (FV) of the upper part of the oxide block. Ion implantation of the extrinsic base is formed on both sides of the upper part of the oxide block (13).

    TRANSISTOR BIPOLAIRE EN CIRCUIT INTEGRE

    公开(公告)号:FR2891087A1

    公开(公告)日:2007-03-23

    申请号:FR0552818

    申请日:2005-09-20

    Abstract: L'invention concerne un transistor bipolaire comprenant une région de base (30) reposant par sa face inférieure sur une région de collecteur (1) et entourée d'une première couche isolante (2), une région conductrice de contact de base (3) en contact avec une région périphérique supérieure externe de la région de base, une deuxième région isolante (8) en contact avec une région périphérique supérieure intermédiaire de la région de base, une région d'émetteur (32) en contact avec la partie centrale de la région de base. Le niveau de la partie centrale est plus élevé que le niveau de ladite partie intermédiaire.

    38.
    发明专利
    未知

    公开(公告)号:FR2835652B1

    公开(公告)日:2005-04-15

    申请号:FR0201305

    申请日:2002-02-04

    Abstract: When the fabrication of the insulated gate field effect transistor is started, then the bipolar transistor (BIP1,BIP2) is totally fabricated, before the resumption of fabrication of the insulated gate field effect transistor (MOS), and the step of common finishing of the two transistors is executed, including the common thermal reheating treatment (122) and common silication treatment.

    40.
    发明专利
    未知

    公开(公告)号:FR2806831A1

    公开(公告)日:2001-09-28

    申请号:FR0003845

    申请日:2000-03-27

    Abstract: A method for the fabrication of a bipolar transistor consists of forming, using non-selective epitaxy, a semiconductor region with a silicon-germanium heterojunction (1) extending over an active region (ZA) of a semiconductor substrate and an insulating region (STI) delimiting the active region, and incorporating the region of the intrinsic base of the transistor; an emitter region (8) situated above the active region and coming into contact with the upper surface of the heterojunction semiconductor region (1); a layer of polysilicon (30) forming the region of the extrinsic base of the transistor, situated either side of the emitter region (8) and separated from the heterojunction semiconductor region by a separation layer incorporating an electrical liaison conductor (74) part situated in the external neighbourhood of the emitter region, this liaison part assuring an electrical contact between the extrinsic base and the intrinsic base. An Independent claim is included for such a bipolar transistor.

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