Hybrid package including a power MOSFET die and a control and protection circuit die with a smaller sense MOSFET
First Claim
1. A semiconductor device contained in a package which includes a conductive lead frame having a main pad area and;
- an insulation resin enclosure;
said semiconductor device comprising;
a first semiconductor die having opposing surfaces which contain respective electrodes and comprising a first semiconductor device;
a second semiconductor die having opposing surfaces at least one of which contains at least one electrode, and containing in one portion thereof a second semiconductor device having a thermal response corresponding to that of said first semiconductor device,a first thermal sensor arranged on said second die at a position adjacent to said second semiconductor device,a second thermal sensor arranged on said second die at a position more distant from said second semiconductor device then said first thermal sensor;
one of said opposing surfaces of each of said first and second semiconductor die being disposed atop and in thermal contact with said main pad area and being laterally spaced from one another, at least said one opposing surface of said first semiconductor die being in electrical contact with said main pad area;
the opposite ones of said opposing surfaces of said first and second die being electrically connected to each other such that said first and second semiconductor devices are connected in parallel.
3 Assignments
0 Petitions
Accused Products
Abstract
A power MOSFET die and a logic and protection circuit die are mounted on a common lead frame pad, such as a TO220 lead frame pad. The logic and protection circuit die includes a MOSFET that is connected in parallel with the power MOSFET but which is smaller than the power MOSFET and which dissipates power at a predetermined fraction of that of the power MOSFET. The logic and protection circuit die also includes a temperature sensor that is in close proximity to the MOSFET and determines the temperature of the MOSFET. The die also includes another temperature sensor that is located distant from the MOSFET to determine the temperature of the lead frame. The temperature of the power MOSFET can be determined from the temperature measured by these two sensors and from the ratio of the power dissipated by the two MOSFETs.
52 Citations
33 Claims
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1. A semiconductor device contained in a package which includes a conductive lead frame having a main pad area and;
- an insulation resin enclosure;
said semiconductor device comprising;a first semiconductor die having opposing surfaces which contain respective electrodes and comprising a first semiconductor device; a second semiconductor die having opposing surfaces at least one of which contains at least one electrode, and containing in one portion thereof a second semiconductor device having a thermal response corresponding to that of said first semiconductor device, a first thermal sensor arranged on said second die at a position adjacent to said second semiconductor device, a second thermal sensor arranged on said second die at a position more distant from said second semiconductor device then said first thermal sensor; one of said opposing surfaces of each of said first and second semiconductor die being disposed atop and in thermal contact with said main pad area and being laterally spaced from one another, at least said one opposing surface of said first semiconductor die being in electrical contact with said main pad area; the opposite ones of said opposing surfaces of said first and second die being electrically connected to each other such that said first and second semiconductor devices are connected in parallel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- an insulation resin enclosure;
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15. A semiconductor device comprising:
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a conductive lead frame having a main pad area and a plurality of pins that are separated from one another, said main pad area being electrically coupled to at least one of said plurality of pins; a first semiconductor die having opposing surfaces which contain respective electrodes and containing a first semiconductor device; a second semiconductor die having opposing surfaces at least one of which contains at least one electrode and comprising a second semiconductor device having a thermal response corresponding to that of said first semiconductor device, a first thermal sensor arranged on said second die at least adjacent to said second semiconductor device, and a second thermal sensor arranged on said second die distant from said second semiconductor device; one of said opposing surfaces of each of said first and second semiconductor die being disposed atop and in thermal contact with said main pad area and being laterally spaced from one another, at least said one opposing surface of said first semiconductor die being in electrical contact with said main pad area; the opposite ones of said opposing surfaces of said first and second die being electrically connected to respective ones of said pins and to each other such that said first and second semiconductor devices are connected in parallel; and a molded housing for encapsulating said lead frame and said first and second die and said bonding wires; said pins extending beyond an external boundary of said molded housing and available for external connection. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A integrated circuit device formed in a semiconductor die having opposing surfaces at least one of which contains at least one electrode, said integrated circuit device comprising:
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an MOS gated semiconductor device; a first thermal sensor arranged on said semiconductor die adjacent to said MOS gated semiconductor device for sensing the temperature of said MOS gated semiconductor device; and a second thermal sensor arranged on said semiconductor die distant from said MOS gated semiconductor device for sensing the temperature of a substrate on which said semiconductor die is mounted. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
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Specification