WO2016117030A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- WO2016117030A1 WO2016117030A1 PCT/JP2015/051393 JP2015051393W WO2016117030A1 WO 2016117030 A1 WO2016117030 A1 WO 2016117030A1 JP 2015051393 W JP2015051393 W JP 2015051393W WO 2016117030 A1 WO2016117030 A1 WO 2016117030A1
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- substrate
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- photocoupler
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/01—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using semiconducting elements having PN junctions
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/01—Details
- H03K3/011—Modifications of generator to compensate for variations in physical values, e.g. voltage, temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
- G01K3/10—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of time, e.g. reacting only to a quick change of temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0003—Protection against electric or thermal overload; cooling arrangements; means for avoiding the formation of cathode films
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/28—Structural combinations of electrolytic capacitors, rectifiers, detectors, switching devices with other electric components not covered by this subclass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
- H01L25/16—Assemblies consisting of a plurality of semiconductor or other solid state devices the devices being of types provided for in two or more different subclasses of H10B, H10D, H10F, H10H, H10K or H10N, e.g. forming hybrid circuits
- H01L25/167—Assemblies consisting of a plurality of semiconductor or other solid state devices the devices being of types provided for in two or more different subclasses of H10B, H10D, H10F, H10H, H10K or H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/01—Details
- H03K3/017—Adjustment of width or dutycycle of pulses
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F55/00—Radiation-sensitive semiconductor devices covered by groups H10F10/00, H10F19/00 or H10F30/00 being structurally associated with electric light sources and electrically or optically coupled thereto
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F55/00—Radiation-sensitive semiconductor devices covered by groups H10F10/00, H10F19/00 or H10F30/00 being structurally associated with electric light sources and electrically or optically coupled thereto
- H10F55/20—Radiation-sensitive semiconductor devices covered by groups H10F10/00, H10F19/00 or H10F30/00 being structurally associated with electric light sources and electrically or optically coupled thereto wherein the electric light source controls the radiation-sensitive semiconductor devices, e.g. optocouplers
- H10F55/25—Radiation-sensitive semiconductor devices covered by groups H10F10/00, H10F19/00 or H10F30/00 being structurally associated with electric light sources and electrically or optically coupled thereto wherein the electric light source controls the radiation-sensitive semiconductor devices, e.g. optocouplers wherein the radiation-sensitive devices and the electric light source are all semiconductor devices
Definitions
- the present invention relates to a semiconductor device capable of monitoring the temperature of a substrate without adding parts.
- Semiconductor device control systems are required to have high precision, high functionality, and high density, and must be realized at low cost.
- increasing the accuracy of various sensing functions is an important issue for achieving higher efficiency of semiconductor devices.
- One of the factors that hinders high accuracy is the variation in performance due to the temperature characteristics of electronic components, and countermeasures are required.
- a photocoupler is an electronic component that is generally used to transmit signals of both while isolating a logic part and a semiconductor element.
- a technique for detecting abnormal heat generation of the photocoupler itself using a light-emitting diode of the photocoupler has been proposed (see, for example, Patent Document 1).
- thermocouple or a thermistor In order to suppress the performance variation of the sensing function due to the temperature characteristics of electronic components, it is necessary to monitor and feed back the substrate temperature. Therefore, when the substrate temperature is monitored using a thermocouple or a thermistor, there is a problem that the number of parts and cost increase.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a semiconductor device capable of monitoring the temperature of a substrate without adding parts.
- a semiconductor device converts a substrate, first and second circuits formed on the substrate, and an electric signal formed on the substrate and input from the first circuit into an optical signal.
- a photocoupler having a light emitting diode and a light receiving element that converts the optical signal into an electrical signal and outputs the electric signal to the second circuit; and reading a Vf voltage value of the light emitting diode of the photocoupler to detect the temperature of the substrate And a substrate temperature monitor circuit for monitoring the above.
- the substrate temperature monitor circuit monitors the substrate temperature by reading the Vf voltage value of the light-emitting diode of the photocoupler. As a result, the temperature of the substrate can be monitored without adding components such as a thermocouple and a thermistor.
- FIG. 1 is a diagram illustrating a semiconductor device according to a first embodiment of the present invention. It is a figure which shows the Vf voltage characteristic of the light emitting diode of a photocoupler. It is a figure which shows the semiconductor device which concerns on Embodiment 2 of this invention. It is a figure which shows the semiconductor device which concerns on Embodiment 3 of this invention. It is a figure which shows the semiconductor device which concerns on Embodiment 4 of this invention. It is a figure which shows the semiconductor device which concerns on Embodiment 5 of this invention. It is a figure which shows the semiconductor device which concerns on Embodiment 6 of this invention. It is a figure which shows the lifetime curve of an aluminum electrolytic capacitor. It is a figure which shows the semiconductor device which concerns on Embodiment 7 of this invention. It is a figure which shows the semiconductor device which concerns on Embodiment 8 of this invention.
- FIG. FIG. 1 is a diagram showing a semiconductor device according to Embodiment 1 of the present invention.
- the photocoupler 4 includes a primary side light emitting diode 6 that converts an electrical signal input from the first circuit 2 into an optical signal, and a light receiving element 7 that converts the optical signal into an electrical signal and outputs the electrical signal to the second circuit 3.
- the photocoupler 4 transmits both signals while insulating between the first circuit 2 and the second circuit 3.
- FIG. 2 is a diagram showing the Vf voltage characteristics of the light-emitting diode of the photocoupler.
- the Vf voltage of the primary side light emitting diode 6 has temperature dependency. Therefore, the substrate temperature monitor circuit 5 monitors the temperature of the substrate 1 by reading the Vf voltage value of the primary side light emitting diode 6 of the photocoupler 4. Since the photocoupler 4 is originally provided in the apparatus, the temperature of the substrate 1 can be monitored without adding components such as a thermocouple and a thermistor. Also, by feeding back the monitored temperature to various sensing circuits, variations in circuit characteristics due to temperature can be canceled, and the sensing function can be highly accurate.
- FIG. FIG. 3 is a diagram showing a semiconductor device according to the second embodiment of the present invention.
- a constant current circuit 8 is used as a drive circuit for the primary side light emitting diode 6. Thereby, accurate substrate temperature information can be monitored.
- FIG. FIG. 4 is a diagram showing a semiconductor device according to the third embodiment of the present invention.
- the power supply circuit 9 supplies a voltage to the first and second circuits 2 and 3.
- the substrate temperature monitor circuit 5 corrects the temperature variation of the output voltage value of the power supply circuit 9 according to the monitored temperature of the substrate 1.
- the accuracy of the drive system of the semiconductor device can be improved by feeding back the temperature information to the power supply circuit 9 and correcting the variation due to the temperature characteristic of the power supply voltage value.
- FIG. FIG. 5 is a diagram showing a semiconductor device according to the fourth embodiment of the present invention.
- the substrate temperature monitor circuit 5 outputs an error signal when the monitored temperature of the substrate 1 reaches a threshold value.
- the control circuit 10 stops the operations of the first and second circuits 2 and 3.
- the semiconductor device can be accurately protected.
- FIG. FIG. 6 is a diagram showing a semiconductor device according to the fifth embodiment of the present invention.
- the signal output circuit 11 outputs a pulse width modulation (PWM) signal.
- PWM pulse width modulation
- the substrate temperature monitor circuit 5 corrects the PWM signal according to the monitored temperature of the substrate 1 and supplies it to the photocoupler 4. In this way, by monitoring and feeding back the temperature using the substrate temperature monitor circuit 5, it is possible to correct the duty transmission variation of the PWM signal of the photocoupler 4 caused by the temperature characteristics.
- FIG. 7 is a diagram showing a semiconductor device according to the sixth embodiment of the present invention.
- the power supply circuit 9 has an aluminum electrolytic capacitor 12.
- the substrate temperature monitor circuit 5 refers to the life curve of the aluminum electrolytic capacitor 12 stored in advance, and accumulates the thermal history of the aluminum electrolytic capacitor 12 from the monitored temperature of the substrate 1 to thereby determine the life of the aluminum electrolytic capacitor 12.
- FIG. 8 is a diagram showing a life curve of an aluminum electrolytic capacitor. Thereby, the lifetime of the aluminum electrolytic capacitor 12 can be accurately predicted.
- the substrate temperature monitor circuit 5 outputs an error signal when the predicted lifetime of the aluminum electrolytic capacitor 12 reaches the lifetime criteria. Upon receiving the error signal, the error output unit 13 notifies the user of the error by display or voice. As a result, the semiconductor device can be accurately protected, and the replacement time of the semiconductor device can be detected.
- FIG. FIG. 9 shows a semiconductor device according to Embodiment 7 of the present invention.
- a plurality of photocouplers 4 are formed on the substrate 1.
- the first and second circuits 2 and 3 are not shown, they have the same configuration as that of any of the first to sixth embodiments.
- the substrate temperature monitor circuit 5 monitors the temperature of the substrate 1 by reading and averaging the Vf voltage value of the primary side light emitting diode 6 of each of the plurality of photocouplers 4. In this way, by monitoring the temperature by the plurality of photocouplers 4, the temperature of the substrate 1 can be monitored more accurately.
- FIG. 10 is a diagram showing a semiconductor device according to the eighth embodiment of the present invention.
- a plurality of photocouplers 4 are formed on the substrate 1.
- the first and second circuits 2 and 3 are not shown, they have the same configuration as that of any of the first to sixth embodiments.
- the substrate temperature monitoring circuit 5 monitors the temperature of the substrate 1 by reading the Vf voltage value of the primary side light emitting diode 6 of the photocoupler 4 at the highest temperature of the substrate 1 among the plurality of photocouplers 4.
- Substrate 2. First circuit, 3. Second circuit, 4. Photocoupler, 5. Substrate temperature monitor circuit, 6. Primary light emitting diode, 7. Light receiving element, 8. Constant current circuit, 9. Power supply circuit, 10. Control circuit, 11. Signal. Output circuit, 12 aluminum electrolytic capacitor
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
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Abstract
Description
図1は、本発明の実施の形態1に係る半導体装置を示す図である。基板1上に、第1及び第2の回路2,3、フォトカプラ4、及び基板温度モニタ回路5が形成されている。フォトカプラ4は、第1の回路2から入力した電気信号を光信号に変換する一次側発光ダイオード6と、その光信号を電気信号に変換して第2の回路3に出力する受光素子7とを有する。フォトカプラ4は、第1の回路2と第2の回路3との間を絶縁しつつ、双方の信号を伝達する。
図3は、本発明の実施の形態2に係る半導体装置を示す図である。一次側発光ダイオード6の駆動回路として定電流回路8を用いる。これにより、正確な基板温度情報をモニタすることができる。
図4は、本発明の実施の形態3に係る半導体装置を示す図である。電源回路9が第1及び第2の回路2,3に電圧を供給する。基板温度モニタ回路5は、モニタした基板1の温度に応じて電源回路9の出力電圧値の温度バラつきを補正する。このように電源回路9に温度情報をフィードバックして電源電圧値の温度特性によるばらつきを補正することにより、半導体装置の駆動系の精度を向上することができる。
図5は、本発明の実施の形態4に係る半導体装置を示す図である。基板温度モニタ回路5は、モニタした基板1の温度が閾値に到達した際にエラー信号を出力する。エラー信号を受けた制御回路10は第1及び第2の回路2,3の動作を停止させる。このように基板1の異常発熱時にエラー信号を出力することで、半導体装置の正確な保護が可能となる。
図6は、本発明の実施の形態5に係る半導体装置を示す図である。信号出力回路11はパルス幅変調(PWM: Pulse Width Modulation)信号を出力する。そして、基板温度モニタ回路5は、モニタした基板1の温度に応じてPWM信号を補正してフォトカプラ4に供給する。このように基板温度モニタ回路5を用いて温度をモニタしてフィードバックすることで、温度特性により発生するフォトカプラ4のPWM信号のデューティー伝達バラツキを補正することができる。
図7は、本発明の実施の形態6に係る半導体装置を示す図である。電源回路9はアルミ電解コンデンサ12を有する。そして、基板温度モニタ回路5は、予め記憶されているアルミ電解コンデンサ12の寿命曲線を参照し、モニタした基板1の温度からアルミ電解コンデンサ12の熱履歴を累積することでアルミ電解コンデンサ12の寿命を予測する。図8は、アルミ電解コンデンサの寿命曲線を示す図である。これにより、アルミ電解コンデンサ12の寿命を正確に予測することができる。
図9は、本発明の実施の形態7に係る半導体装置を示す図である。基板1上に複数のフォトカプラ4が形成されている。第1及び第2の回路2,3等は図示を省略するが、実施の形態1~6の何れかと同様の構成である。
図10は、本発明の実施の形態8に係る半導体装置を示す図である。基板1上に複数のフォトカプラ4が形成されている。第1及び第2の回路2,3等は図示を省略するが、実施の形態1~6の何れかと同様の構成である。
Claims (9)
- 基板と、
前記基板上に形成された第1及び第2の回路と、
前記基板上に形成され、前記第1の回路から入力した電気信号を光信号に変換する発光ダイオードと、前記光信号を電気信号に変換して前記第2の回路に出力する受光素子とを有するフォトカプラと、
前記フォトカプラの前記発光ダイオードのVf電圧値を読み取ることで前記基板の温度をモニタする基板温度モニタ回路とを備えることを特徴とする半導体装置。 - 前記発光ダイオードの駆動回路として定電流回路を備えることを特徴とする請求項1に記載の半導体装置。
- 前記第1及び第2の回路に電圧を供給する電源回路を更に備え、
前記基板温度モニタ回路は、モニタした前記基板の温度に応じて前記電源回路の出力電圧値の温度バラつきを補正することを特徴とする請求項1又は2に記載の半導体装置。 - 前記基板温度モニタ回路は、モニタした前記基板の温度が閾値に到達した際にエラー信号を出力することを特徴とする請求項1又は2に記載の半導体装置。
- パルス幅変調信号を出力する信号出力回路を更に備え、
前記基板温度モニタ回路は、モニタした前記基板の温度に応じて前記パルス幅変調信号を補正して前記フォトカプラに供給することを特徴とする請求項1又は2に記載の半導体装置。 - 前記第1及び第2の回路に電圧を供給する電源回路を更に備え、
前記電源回路はアルミ電解コンデンサを有し、
前記基板温度モニタ回路は、モニタした前記基板の温度から前記アルミ電解コンデンサの熱履歴を累積することで前記アルミ電解コンデンサの寿命を予測することを特徴とする請求項1又は2に記載の半導体装置。 - 前記基板温度モニタ回路は、予測した前記アルミ電解コンデンサの寿命が寿命クライテリアに到達した際にエラー信号を出力することを特徴とする請求項6に記載の半導体装置。
- 前記フォトカプラは複数のフォトカプラを有し、
前記基板温度モニタ回路は、前記複数のフォトカプラのそれぞれの前記発光ダイオードのVf電圧値を読み取って平均化することで前記基板の温度をモニタすることを特徴とする請求項1~7の何れか1項に記載の半導体装置。 - 前記フォトカプラは複数のフォトカプラを有し、
前記基板温度モニタ回路は、前記複数のフォトカプラのうち前記基板の温度が最も高い箇所のフォトカプラの前記発光ダイオードのVf電圧値を読み取ることで前記基板の温度をモニタすることを特徴とする請求項1~7の何れか1項に記載の半導体装置。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016570377A JP6354861B2 (ja) | 2015-01-20 | 2015-01-20 | 半導体装置 |
| CN201580074020.6A CN107210332B (zh) | 2015-01-20 | 2015-01-20 | 半导体装置 |
| US15/520,636 US10505518B2 (en) | 2015-01-20 | 2015-01-20 | Semiconductor device with substrate temperature monitor circuit |
| PCT/JP2015/051393 WO2016117030A1 (ja) | 2015-01-20 | 2015-01-20 | 半導体装置 |
| DE112015005998.9T DE112015005998T5 (de) | 2015-01-20 | 2015-01-20 | Halbleitervorrichtung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| PCT/JP2015/051393 WO2016117030A1 (ja) | 2015-01-20 | 2015-01-20 | 半導体装置 |
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| US (1) | US10505518B2 (ja) |
| JP (1) | JP6354861B2 (ja) |
| CN (1) | CN107210332B (ja) |
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| JP6557517B2 (ja) * | 2015-06-08 | 2019-08-07 | ルネサスエレクトロニクス株式会社 | 半導体集積回路装置および電子装置 |
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- 2015-01-20 CN CN201580074020.6A patent/CN107210332B/zh active Active
- 2015-01-20 DE DE112015005998.9T patent/DE112015005998T5/de active Pending
- 2015-01-20 US US15/520,636 patent/US10505518B2/en active Active
- 2015-01-20 JP JP2016570377A patent/JP6354861B2/ja active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2016117030A1 (ja) | 2017-06-22 |
| US10505518B2 (en) | 2019-12-10 |
| CN107210332B (zh) | 2021-10-15 |
| DE112015005998T5 (de) | 2017-10-05 |
| JP6354861B2 (ja) | 2018-07-11 |
| US20170317664A1 (en) | 2017-11-02 |
| CN107210332A (zh) | 2017-09-26 |
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