Semiconductor device

Active solid-state devices (e.g. – transistors – solid-state diode – Regenerative type switching device – With housing or external electrode

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C257S178000, C257S584000, C257S751000, C257S753000, C257S763000, C257S765000, C257S766000, C257S770000, C257S771000, C257S779000

Reexamination Certificate

active

07045831

ABSTRACT:
A semiconductor device of the present invention comprises a semiconductor chip, metal layers formed on a first main surface of the semiconductor chip, a first conductive layer layered on a second main surface of the semiconductor chip, consisting of a plurality of conductive films, a second conductive layer layered on the metal layer, having a layered structure consisting of a plurality of conductive films formed in the same order as in the first conductive layer as viewed from the semiconductor chip and a third conductive layer layered on the metal layer, having a layered structure consisting of a plurality of conductive films formed in the same order as in the first conductive layer as viewed from the semiconductor chip. The plurality of conductive films comprise a nickel film and a low contact resistance conductive film having contact resistance with the semiconductor chip which is lower than that of the nickel film. The low contact resistance conductive film and the nickel film are formed in this order from the semiconductor chip. With such a structure, a semiconductor device ensuring simplification of its manufacturing process can be provided.

REFERENCES:
patent: 4560421 (1985-12-01), Maeda et al.
patent: 5027180 (1991-06-01), Nishizawa et al.
patent: 2002-198515 (2002-07-01), None
patent: 2003152175 (2003-05-01), None
patent: 2003-243585 (2003-08-01), None
patent: 2003273346 (2003-09-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3538706

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.