Semiconductor device having a particular terminal arrangement
First Claim
1. A semiconductor device, comprising:
- a radiation plate;
a first conductor fixed on said radiation plate;
a first insulating layer fixed on said first conductor;
a second conductor fixed on said first insulating layer;
at least one semiconductor element and a second insulating layer fixed on said second conductor;
a third conductor fixed on said second insulating layer;
a fourth conductor for electrically connecting the surface electrode of said semiconductor element with said third conductor;
a first power terminal fixed on said second conductor; and
a second power terminal fixed on said third conductor.
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Accused Products
Abstract
A semiconductor device for accomplishing high speed switchings with a large current includes a radiation plate, a first conductor fixed on said radiation plate, a first insulating layer fixed on said first conductor, a second conductor fixed on said first insulating layer, at least one semiconductor element and a second insulating layer fixed on said second conductor, a third conductor fixed on said second insulating layer, a fourth conductor for electrically connecting the surface electrode of said semiconductor element with said third conductor, a first power terminal fixed on said second conductor, and a second power terminal fixed on said third conductor. To reduce the internal inductance, said first and second power terminals have a flat part whose width is larger in length than the height. Also, these terminals are adjacently arranged substantially parallel to each other. In this device, the main currents on said first and second power terminals, and on said second and fourth conductors flow in the opposite directions, thus further reducing the internal inductance.
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Citations
15 Claims
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1. A semiconductor device, comprising:
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a radiation plate; a first conductor fixed on said radiation plate; a first insulating layer fixed on said first conductor; a second conductor fixed on said first insulating layer; at least one semiconductor element and a second insulating layer fixed on said second conductor; a third conductor fixed on said second insulating layer; a fourth conductor for electrically connecting the surface electrode of said semiconductor element with said third conductor; a first power terminal fixed on said second conductor; and a second power terminal fixed on said third conductor. - View Dependent Claims (2, 3)
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4. A semiconductor device, comprising:
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a radiation plate; a plurality of packaging substrates fixed on said radiation plate; each of said packaging substrates having a first conductor, a first insulating layer fixed on said first conductor, a second conductor fixed on said first insulating layer, a second insulating layer fixed on said second conductor, and a third conductor fixed on said second insulating layer; at least one semiconductor element fixed on said second conductor contained in said at least one packaging substrate; and fourth conductors for electrically connecting said plurality of packaging substrates with each other at a plurality of points. - View Dependent Claims (5, 6)
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7. A semiconductor device, comprising:
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a first conductor; a first insulating layer fixed on said first conductor; a second conductor fixed on said first insulating layer; at least one semiconductor element fixed on said second conductor; a first power terminal electrically connected with the front surface electrode of said semiconductor element; and a second power terminal electrically connected with the back surface electrode of said semiconductor element; wherein either one of said first or second power terminal has a flat part in which the width is larger than the height in magnitude. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification