Semiconductor power module
First Claim
1. A semiconductor power module comprising:
- (a) a semiconductor element for electric power control;
(b) a circuit board, comprising;
(b-1) a circuit board body having an insulator; and
(b-2) first and second wiring patterns disposed on one major surface of said circuit board in such a manner that principal parts of said first and said second wiring patterns are longitudinally adjacent each other, said first and said second wiring patterns transmitting first and second power source potentials to said semiconductor element for electric power control, respectively; and
(c) a first and a second power source terminals which are connected to said first and said second wiring patterns, respectively,said first and second wiring patterns and said first and second power source terminals being disposed in such a manner that power source currents flow in said first and said second wiring patterns in substantially parallel but opposite directions.
1 Assignment
0 Petitions
Accused Products
Abstract
In a semiconductor power module, a surge voltage on a power source line of a semiconductor element for electric power control is restrained. A power source terminal PS(NP) is comprised of power source terminals PS(P) and PS(N) which are arranged adjacent each other through an insulative sheet INS1 made of insulative synthetic resin or the like. The power source terminals PS(P) and PS(N) are each formed by a conductive plate and respectively transmit a positive and negative power source potentials. The thickness of the insulative sheet INS1 is 0.5 mm to 1.5 mm, for instance. A reduction is made in a parasitic inductance which is present in the power source line which extends from the power source terminal PS(P) to the power source terminal PS(N) through the semiconductor element for electric power control, thereby suppressing a surge voltage which is developed between the power source terminal PS(P) and the power source terminal PS(N).
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Citations
32 Claims
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1. A semiconductor power module comprising:
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(a) a semiconductor element for electric power control; (b) a circuit board, comprising; (b-1) a circuit board body having an insulator; and (b-2) first and second wiring patterns disposed on one major surface of said circuit board in such a manner that principal parts of said first and said second wiring patterns are longitudinally adjacent each other, said first and said second wiring patterns transmitting first and second power source potentials to said semiconductor element for electric power control, respectively; and (c) a first and a second power source terminals which are connected to said first and said second wiring patterns, respectively, said first and second wiring patterns and said first and second power source terminals being disposed in such a manner that power source currents flow in said first and said second wiring patterns in substantially parallel but opposite directions. - View Dependent Claims (21)
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2. A semiconductor power module comprising:
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(a) a semiconductor element for electric power control; and (b) a power source terminal for transmitting first and second power source potentials to said semiconductor element for electric power control, wherein said power source terminal comprises; (b-1) an insulator; and (b-2) first and second conductors for transmitting said first and said second power source potentials, respectively, said first and said second conductors being electrically insulated from each other by said insulator, said first and said second conductors being longitudinally adjacent to each other and carrying power source currents in substantially parallel but opposite directions. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22)
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3. A semiconductor power module comprising:
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(a) a semiconductor element for electric power control; (b) a circuit board, comprising; (b-1) a circuit board body having an insulator; and (b-2) first and second wiring patterns respectively formed in first and second different planes which are parallel to a major surface of said circuit board body in such a manner that principal parts of said first and said second wiring patterns are longitudinally facing each other, said first and said second wiring patterns transmitting first and second power source potentials to said semiconductor element for electric power control, respectively; and (c) first and second power source terminals which are connected to said first and said second wiring patterns, respectively, said first and second wiring patterns and said first and second power source terminals being disposed in such a manner that power source currents flow in said first and second wiring patterns in substantially parallel but opposite directions. - View Dependent Claims (23)
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4. A semiconductor power module comprising:
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(a) a semiconductor element for electric power control; and (b) a power source terminal for transmitting first and second power source potentials to said semiconductor element for electric power control, said power source terminal comprising; (b-1) a first insulator; and (b-2) first and second conductors for transmitting said first and said second power source potentials, respectively, said first and said second conductors being electrically insulated from each other by said first insulator, said first and said second conductors being longitudinally adjacent to each other and carrying power source currents in substantially parallel but opposite directions; and (c) an external power source terminal connected to said power source terminal by a conductive connection member, said external power source terminal comprising; (c-1) a second insulator; and (c-2) third and fourth conductors for transmitting said first and said second power source potentials, respectively, said third and said fourth conductors being electrically insulated from each other by said second insulator, said third and said fourth conductors carrying power source currents in substantially parallel but opposite directions, wherein said power source terminal and said external power source terminal are connected by said connection member in such a manner that said first and said third conductors are in contact and hence in electrical connection to each other, and said second and said fourth conductors, each in contact to said connection member, are electrically coupled to each other through said connection member. - View Dependent Claims (24)
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25. A semiconductor power module comprising:
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(a) a semiconductor element for electric power control having a high power source potential electrode and a low power source potential electrode; (b) a circuit board, comprising; (b-1) a circuit board body having an insulator; and (b-2) first and second wiring patterns connected to said high and lower power source potential electrodes, respectively, and disposed on one major surface of said circuits and board body; and (c) first and second power source terminals which are connected to said first and second wiring patterns, respectively, said first and second wiring patterns and said first and second power source terminals being disposed in such a manner that principal parts of said first and said second wiring patterns are longitudinally adjacent each other, and said principal parts defining paths from said first power source terminal to said high power source potential electrode along said first wiring pattern and from said second power source terminal to said low power source potential electrode along said second wiring pattern, respectively.
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26. A semiconductor power module comprising:
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(a) a semiconductor element for electric power control having a power source potential electrode and a low power source potential electrode; and (b) a power source terminal, wherein said power source terminal comprises; (b-1) an insulator; and (b-2) first and second conductors being electrically insulated from each other by said insulator, principal parts of said first and said second conductors being longitudinally adjacent each other, an end of said first conductor being electrically coupled with said first high power source potential electrode and an end of said second conductor being electrically coupled with said low power source potential electrode, said ends of said first and said second conductors being on the same side with respect to said principal parts. - View Dependent Claims (29, 30)
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27. A semiconductor power module comprising:
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(a) a semiconductor element for electric power control having high power source potential electrode and a low power source potential electrode; (b) a circuit board, comprising; (b-1) a circuit board body having an insulator; and (b-2) first and second wiring patterns respectively connected to said high and said low power source potential electrodes, and respectively formed in first and second different planes which are parallel to a major surface of said circuit board body; and (c) first and second power source terminals which are connected to said first and said second wiring patterns, respectively, said first and second wiring patterns and said first and second power source terminals being disposed in such a manner that principal parts of said first and second wiring patterns are longitudinally facing each other, and said principal parts defining paths from said first power source terminal to said high power source potential electrode along said first wiring pattern and from said second power source terminal to said low power source potential electrode along said second wiring pattern, respectively.
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28. A semiconductor power module comprising:
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(a) a semiconductor element for electric power control having a high power source potential electrode and a low power source potential electrode; and (b) a power source terminal, said power source terminal comprising; (b-1) a first insulator; and (b-2) first and second conductors being electrically insulated from each other by said first insulator, principal parts of said first and said second conductors being longitudinally adjacent to each other, an end of said first conductor being electrically coupled with said high power source potential electrode and an end of said second conductor being electrically coupled with said low power source potential electrode, said ends of first and second conductors being on the same side with respect to said principal parts of said first and second conductors; and (c) an external power source terminal connected to said power source terminal by a conductive connection member, said external power source terminal comprising; (c-1) a second insulator; and (c-2) third and fourth conductors being electrically insulated from each other by said second insulator, principal parts of said third and said fourth conductors being longitudinally adjacent to each other, wherein said power source terminal and said external power source terminal are connected by said connection member in such a manner that another end of said first conductor and an end of said third conductor are in contact and hence in electrical connection to each other, another end of said second conductor and an end of said fourth conductor, each in contact to said connection member, are electrically coupled to each other through said connection member, wherein said ends of said third and said fourth conductors are on the same side with respect to said principal parts of said third and said fourth conductors. - View Dependent Claims (31, 32)
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Specification