3.
    发明专利
    未知

    公开(公告)号:AT439682T

    公开(公告)日:2009-08-15

    申请号:AT02754741

    申请日:2002-06-04

    Applicant: IBM

    Abstract: A method for improving the SiGe bipolar yield as well as fabricating a SiGe heterojunction bipolar transistor is provided. The inventive method includes ion-implanting carbon, C, into at one of the following regions of the device: the collector region (16), the sub-collector region (14), the extrinsic base regions (29), and the collector-base junction region (27). In a preferred embodiment each of the aforesaid regions include C implants.

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