Zener diode having a reference diode and a protective diode

Details Zener diode having a reference diode and a protective diode Zener diode having a reference diode and a protective diode

1992-12-14

1994-08-09

Hille, Rolf

Active solid-state devices (e.g., transistors, solid-state diode

Avalanche diode

257199, 257605, 257606, H01L 2990

Patent

active

053369246

ABSTRACT:
A zener diode having a semiconductor body (1) with a surface zone (1') doped with more than 10.sup.18 atoms/cc, in which at least two regions (2, 3) are provided through diffusion, which regions have substantially the same concentration of doping atoms and adjoin a surface (4) of the surface zone (1') and form p-n junctions (5,6) with the surface zone (1'), a first region (2) having a smaller lateral cross-section and a smaller depth than a second region (3). Both regions (2, 3) are connected to a first connection electrode (7, 8) provided on the surface (4), and a second connection electrode (9), which is spaced apart from the regions (2, 3), is provided on the semiconductor body (1). The first region has a side edge (10) which is formed through lateral diffusion and which is at least partly spaced apart from the second region (3). A higher electric field is created locally in the junction (5) during operation of the zener diode owing to the side edge (10). The current voltage characteristic of the zener diode is steeper as a result of this.

REFERENCES:
patent: 4419681 (1983-12-01), Schmitz
patent: 4429324 (1984-01-01), Wilkens
patent: 4484206 (1984-11-01), Moroshima et al.
patent: 4672403 (1987-06-01), Jennings
patent: 4732866 (1988-03-01), Chruma et al.
patent: 4771011 (1988-09-01), Hemmah et al.
patent: 4999683 (1991-03-01), Kiyomura et al.
patent: 5001335 (1991-03-01), Takaoka et al.

Affiliated with

Also associated with

Rating

Zener diode having a reference diode and a protective diode does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zener diode having a reference diode and a protective diode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zener diode having a reference diode and a protective diode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-217823