Infineon Technologies Ag

Ludger Borucki

Dietrich Bonart

Markus Zundel

Dirk Ahlers

Bernhard Weidgans

Martina Debie

Franz Hirler

Peter Nelle

Markus Winkler

Erwin Vogl

Various embodiments provide a semiconductor chip, wherein the semiconductor chip comprises a first contact area and a second contact area both formed at a frontside of the semiconductor chip; a passivation layer arranged at the frontside between the first contact area and the second contact area; and a contact stack formed over the frontside of the semiconductor chip and comprising a plurality of layers, wherein at least one layer of the plurality of layers is removed from the passivation layer and boundary regions of the contact areas being adjacent to the passivation layer and wherein at least one another layer of the plurality of different layer is present in the boundary region of the contact areas adjoining the passivation layer.

Semiconductor chip and method of processing a semiconductor chip

An alternator assembly includes an input terminal configured to input an alternating voltage, an output terminal configured to output a rectified voltage, and a gated diode arranged in a load path between the input terminal and the output terminal.

Alternator assembly having a gated diode arranged in a load path between an input terminal and an output terminal

A gated diode in a press-fit housing includes a base configured to be press-fit into an opening of a diode carrier plate and including a pedestal portion with a first flat surface, and a head wire including a head portion with a second flat surface and a wire portion. The base and the head wire form parts of the press-fit housing. The gated diode in the press-fit housing further includes a semiconductor die, a first solder layer engaging and electrically connecting the semiconductor die with the first flat surface of the base, and a second solder layer engaging and electrically connecting the semiconductor die with the second flat surface of the head wire.

Gated diode in a press-fit housing and an alternator assembly having a gated diode arranged in a load path

A method for processing a semiconductor device in accordance with various embodiments may include: providing a semiconductor device having a first pad and a second pad electrically disconnected from the first pad; applying at least one electrical test potential to at least one of the first pad and the second pad; and electrically connecting the first pad and the second pad to one another after applying the at least one electrical test potential.

Semiconductor devices and processing methods

A gated diode may include source zones and a drain zone which are both of a first conductivity type. The source zones directly adjoin a first surface of a semiconductor die and the drain zone directly adjoins an opposite second surface of the semiconductor die. The drain zone includes a drift zone formed in an epitaxial layer of the semiconductor die. Base zones of a second conductivity type, which is the opposite of the first conductivity type, are provided between the drain zones and the source zones. The drift zone further includes adjustment zones directly adjoining a base zone and arranged between the respective base zone and the second surface, respectively. A net dopant concentration in the adjustment zone is at least twice a net dopant concentration in the second sub-zone. The adjustment zones precisely define the reverse breakdown voltage.

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Munich, Germany

Ludger Borucki