1.
    发明专利
    未知

    公开(公告)号:DE1564151A1

    公开(公告)日:1969-07-24

    申请号:DEJ0030835

    申请日:1966-05-14

    Applicant: IBM

    Abstract: A method for manufacturing a field-effect, isolated-barrier transistor, comprising the steps of: forming by diffusion separate parts, of a first type of conductivity, on the surface of an elementary semiconductor wafer of the opposite conductivity type; forming an insulating layer at least in the intermediate part of said surface lying between said diffused portions separated and defining a conduit channel therebetween, having a given surface potential the interfacial zone between said insulating layer and said intermediate portion of said surface. said wafer; and forming on said insulating layer a barrier electrode for applying electric fields to said intermediate surface portion; method characterized by the improvement comprising the step of passing through diffusion an impurity material of the acceptor type, through said insulating layer and until penetrating a narrow layer of said intermediate surface part before forming said barrier electrode, for control the surface potential in said interfacial zone. (Machine-translation by Google Translate, not legally binding)

Patent Agency Ranking