Semiconductor device
First Claim
1. A semiconductor device comprising:
- a first semiconductor chip that includes a transmission circuit input unit, a transmission circuit unit connected to the transmission circuit input unit, and a transmission unit connected to the transmission circuit unit ; and
a second semiconductor chip that is disposed on or below the first semiconductor chip and includes a reception unit, a reception circuit unit connected to the reception unit, and a reception circuit output unit connected to the reception circuit unit,wherein the transmission unit and the reception unit communicate with each other in a non-contact manner,a transmission circuit unit input signal having a predetermined transmission-side potential is input into the transmission circuit unit via the transmission circuit input unit, the transmission circuit unit outputs a transmission circuit unit output signal corresponding to the transmission circuit unit input signal, and the transmission circuit unit output signal is input as a reception circuit unit input signal to the reception circuit unit via the non-contact communication between the transmission unit and the reception unit,the reception circuit unit outputs a reception circuit unit output signal corresponding to a voltage of the reception circuit unit input signal and having a predetermined reception-side potential, to the reception circuit output unit,a ratio of the reception-side potential to the transmission-side potential is changed,the transmission unit is a transmission coil,the reception unit is a reception coil,the reception coil is a variable turn number reception coil capable of changing a number of turns,the reception circuit unit has a reception coil turn number control unit that changes the number of turns of the variable turn number reception coil, andthe reception coil turn number control unit changes the number of turns of the variable turn number reception coil to change the ratio of the reception-side potential to the transmission-side potential.
1 Assignment
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Accused Products
Abstract
A semiconductor device includes a first semiconductor chip and a second semiconductor chip The first semiconductor chip includes a transmission circuit input unit, a transmission circuit unit, and a transmission unit. The second semiconductor chip includes a reception unit, a reception circuit unit, and a reception circuit output unit. The transmission unit and the reception unit can communicate with each other in a non-contact manner. A transmission circuit unit input signal having a predetermined transmission-side potential is input into the transmission circuit unit. A reception circuit unit input signal is input into the reception circuit unit via the non-contact communication between the transmission unit and the reception unit. The reception circuit unit outputs a reception circuit unit output signal having a predetermined reception-side potential. The ratio of the reception-side potential to the transmission-side potential can be changed.
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Citations
10 Claims
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1. A semiconductor device comprising:
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a first semiconductor chip that includes a transmission circuit input unit, a transmission circuit unit connected to the transmission circuit input unit, and a transmission unit connected to the transmission circuit unit ; and a second semiconductor chip that is disposed on or below the first semiconductor chip and includes a reception unit, a reception circuit unit connected to the reception unit, and a reception circuit output unit connected to the reception circuit unit, wherein the transmission unit and the reception unit communicate with each other in a non-contact manner, a transmission circuit unit input signal having a predetermined transmission-side potential is input into the transmission circuit unit via the transmission circuit input unit, the transmission circuit unit outputs a transmission circuit unit output signal corresponding to the transmission circuit unit input signal, and the transmission circuit unit output signal is input as a reception circuit unit input signal to the reception circuit unit via the non-contact communication between the transmission unit and the reception unit, the reception circuit unit outputs a reception circuit unit output signal corresponding to a voltage of the reception circuit unit input signal and having a predetermined reception-side potential, to the reception circuit output unit, a ratio of the reception-side potential to the transmission-side potential is changed, the transmission unit is a transmission coil, the reception unit is a reception coil, the reception coil is a variable turn number reception coil capable of changing a number of turns, the reception circuit unit has a reception coil turn number control unit that changes the number of turns of the variable turn number reception coil, and the reception coil turn number control unit changes the number of turns of the variable turn number reception coil to change the ratio of the reception-side potential to the transmission-side potential. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification