CN218412797U - Metering system of integrated circuit test equipment - Google Patents
Metering system of integrated circuit test equipment Download PDFInfo
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- CN218412797U CN218412797U CN202221267105.XU CN202221267105U CN218412797U CN 218412797 U CN218412797 U CN 218412797U CN 202221267105 U CN202221267105 U CN 202221267105U CN 218412797 U CN218412797 U CN 218412797U
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Abstract
The utility model belongs to the technical field of the integrated circuit test, concretely relates to integrated circuit test equipment's measurement system. Wherein, integrated circuit test equipment's measurement system includes integrated circuit test equipment, metering plate and universal meter, integrated circuit test equipment includes the power integrated circuit board, the power integrated circuit board includes FOVI source, QTMU source and ACS source, the metering plate respectively with FOVI source, QTMU source and ACS source are connected, the universal meter with the metering plate is connected. The metering board is used for leading out the FOVI source, the QTMU source and the ACS source from the inside of the integrated circuit testing equipment, so that the multimeter can measure the voltage and the current of the power board card. The utility model discloses a metering board draws forth the power integrated circuit board from becoming inside the circuit test equipment for can carry out mains voltage and supply current's test to the power integrated circuit board alone through the universal meter, judge whether accurate of power precision. The metering time is greatly shortened, and the use efficiency of the test system is effectively improved.
Description
Technical Field
The utility model belongs to the technical field of the integrated circuit test, concretely relates to integrated circuit test equipment's measurement system.
Background
At present, the simulation test system STS8200 only has a system calibration board, and when a system test is performed for daily inspection and maintenance, or a test has a deviation, or whether the deviation of the test system is questioned, the system calibration board can only be used for inspection and correction, but has the following problems:
(1) The precision measurement data is unclear, and the way source which has the deviation cannot be specifically positioned, and the magnitude of the deviation cannot be displayed;
(2) Because the calibration is needed after the precision measurement, the whole process time is long, and the service efficiency of the tester is seriously influenced after the calibration is performed for about 5 to 6 hours once.
Aiming at the problems of the system calibration board, a precision metering system with high precision, short time and clear and definite data needs to be designed urgently, and the use efficiency of the test system is improved.
Disclosure of Invention
The utility model provides an integrated circuit test equipment volume measurement system has solved the technical problem who exists among the at least one prior art.
The utility model provides a technical scheme provides a measurement system of integrated circuit test equipment, including integrated circuit test equipment, metering board and universal meter, integrated circuit test equipment includes the power integrated circuit board, the power integrated circuit board includes FOVI source, QTMU source and ACS source, the metering board respectively with FOVI source, QTMU source and ACS source connection, the universal meter with the metering board is connected;
the metering board is used for leading out the FOVI source, the QTMU source and the ACS source from the inside of the integrated circuit testing equipment, so that the multimeter can measure the voltage and the current of the power board card.
Furthermore, the metering plate comprises a relay module, a relay control bit interface module, an FOVI source interface module, a QTMU source interface module and an ACS source interface module;
one output pin of the relay module is connected with the QTMU source interface module, the other output pin of the relay module is connected with the ACS source interface module, a control pin of the relay module is connected with the relay control bit interface module, an input pin of the relay module is connected with the FOVI source interface module, the relay control bit interface module is connected with a control unit module of the integrated circuit testing equipment, the ACS source interface module is connected with the ACS source of the integrated circuit testing equipment, and the QTMU source interface module is connected with the QTMU source of the integrated circuit testing equipment;
the control unit module of the integrated circuit test equipment generates a control signal according to a test rule, and the relay module can select a connection object of the FOVI source interface module according to the control signal.
Further, the relay module includes a circuit structure composed of a plurality of relays and a resistor.
Further, the integrated circuit test apparatus has a model number of STS8200.
Further, the universal meter is characterized in that a six-bit half meter is adopted, and the specific model is KEYSIGHT 34461A.
Furthermore, during voltage testing, the six-bit half meter is connected with the power board card in parallel through the metering plate, and during current testing, the six-bit half meter is connected with the power board card in series through the metering plate.
The utility model has the advantages that: the utility model discloses a metering board draws forth the power integrated circuit board from becoming inside the circuit test equipment for can carry out mains voltage and supply current's test to the power integrated circuit board alone through the universal meter, judge whether power precision error. Compared with the method that the time for using the system calibration board is 5-6 hours, the precision metering system needs 1.5 minutes for voltage metering and current metering, the total metering time for the FOVI source is not more than 4 minutes, the metering time is greatly shortened, and the use efficiency of the test system is effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of the metering system of the inter-integrated circuit testing apparatus of the present invention.
Fig. 2 is a schematic structural diagram of the metering board of the present invention.
Fig. 3 is a block diagram of the structure of the metering board of the present invention.
Fig. 4 is a flowchart of the metering method of the integrated circuit testing apparatus of the present invention.
Reference numerals are as follows: integrated circuit test equipment 1, metering board 2, universal meter 3, FOVI source 11, QTMU source 12, ACS source 13, relay module 21, relay control bit interface module 25, FOVI source interface module 22, QTMU source interface module 24, ACS source interface module 23, control unit module 14.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
In the embodiment of the utility model, fig. 1 is according to the utility model discloses the structure schematic diagram that integrated circuit test equipment 1 measurement system's concrete structure provided, as shown in fig. 1, the utility model discloses an integrated circuit test equipment 1, metering board 2 and universal meter 3, wherein, integrated circuit test equipment 1 includes power integrated circuit board and control unit module 14, the power integrated circuit board includes FOVI source (eight way voltage current source) 11, QTMU source (four-channel time measuring unit) 12 and ACS source (accurate alternating current source table) 13, metering board 2 respectively with FOVI source 11, QTMU source 12 and ACS source 13 are connected, universal meter 3 with metering board 2 connects, and is concrete, metering board 2 is used for drawing forth FOVI source 11, QTMU source 12 and ACS source 13 from integrated circuit test equipment 1 inside to make universal meter 3 can measure the voltage and the electric current of power.
Wherein, metering plate 2 designs according to integrated circuit test equipment 1's power integrated circuit board card, at first draws the circuit schematic diagram, then according to the circuit schematic diagram, carries out the circuit board design, makes metering plate 2 at last, and metering plate 2 is connected with integrated circuit test equipment 1 through the connector, specifically is connected with FOVI source 11, QTMU source 12 and ACS source 13.
In an embodiment of the present invention, as shown in fig. 2, the metering board 2 includes a relay module 21, a relay control bit interface module 25, a FOVI source interface module 22, a QTMU source interface module 24, and an ACS source interface module 23, as shown in fig. 2, the X4 part is the FOVI source interface module 22, the X5 part is the relay control bit interface module 25, and the X6 part is the interface including the mu qt source 12 interface, the ACS source 13 interface, and the relay. Specifically, as shown in fig. 3, the structure of the measuring plate 2 is as follows: one of them output pin of relay module 21 is connected with QTMU source interface module 24, another output pin of relay module 21 is connected with ACS source interface module 23, the control pin of relay module 21 is connected with relay control bit interface module 25, the input pin of relay module 21 is connected with FOVI source interface module 22, relay control bit interface module 25 is connected with integrated circuit test equipment's control unit module 14, ACS source interface module 23 is connected with integrated circuit test equipment 1's ACS source 13, QTMU source interface module 24 is connected with integrated circuit test equipment 1's QTMU source 12.
The control unit module 14 of the integrated circuit testing device 1 generates a control signal according to the testing rule, and the relay module 21 can select a connection object of the FOVI source interface module 22 according to the control signal. Specifically, the control unit module 14 controls the switching of the target object of the FOVI source 11 through the relay, so as to realize the action of applying voltage and current to the power board inside the test system, and reads the voltage and the current through the six-bit half meter, so as to realize the precision measurement of the power board of the test system.
In an embodiment of the present invention, the relay module 21 includes a circuit structure composed of a plurality of relays and resistors, and the number of the relays is half of the number of the power supplies on the power board. The test rule refers to controlling a plurality of relays in batches, and changing a connection object of the FOVI source interface module 22 according to an applied voltage gear or current gear so that the power board applies a current corresponding to a voltage gear or a current gear corresponding to the voltage gear to realize step-by-step metering. The utility model discloses the model of integrated circuit test equipment 1 who adopts is STS8200.
For making can survey and get more accurate data, universal meter 3 adopts six half meters, can survey and get the voltage of higher accuracy to realize the high accuracy measurement. When the six-bit half meter is used for measuring voltage, the six-bit half meter is connected with the power supply board card in parallel through the metering board 2, and when the current is tested, the six-bit half meter is connected with the power supply board card in series through the metering board 2. The voltage and current are tested by using the six-bit half meter, and the voltage and current test, the voltage test mode for testing voltage and the current test mode for testing current are realized according to the switching of different modes on the six-bit half meter.
The utility model discloses a voltage and the precision of electric current to the inside integrated circuit board of integrated circuit test equipment 1 are measured, so the test procedure is very fast, and the accuracy of the inside integrated circuit board precision of integrated circuit test equipment 1 is not only judged to test manufacturer's system calibration board, after finding integrated circuit test equipment 1's integrated circuit board precision has a problem, can carry out a corrective operation, so the time is more of a specified duration. The utility model aims at when integrated circuit test equipment 1 tests the chip parameter, discover that the chip parameter test does not reach the requirement of norm value, just measure with metering board 2, confirm integrated circuit test equipment 1 not have the problem after, just can confirm to be the chip problem, if find test system has a problem, just correct with test manufacturer's system calibration board.
In another aspect of the present invention, a method for measuring an integrated circuit testing device 1 is provided, which is applied to any one of the verification systems for the power board of the integrated circuit testing device 1, and comprises the following steps:
s10: and controlling the integrated circuit test equipment 1 to apply voltage corresponding to the gear according to different voltage gears of the power board card. Specifically, the relay is connected with different sources to realize the voltage addition and subtraction operation so as to achieve the corresponding voltage gear.
S20: and acquiring voltage data obtained by testing the multimeter 3. Therein, data of multimeter 3 is transmitted to integrated circuit test apparatus 1. The FOVI source 11, the QTMU source 12 and the ACS source 13 in the integrated circuit testing equipment 1 are led out by the metering board 2, and the voltage on the metering board 2 is measured by the universal meter 3 so as to realize the measurement of the applied voltage of the power board card in the integrated circuit testing equipment 1.
S30: and judging whether the power panel card has voltage precision errors or not according to the voltage data and the voltage obtained by the test of the integrated circuit test equipment. The method comprises the following specific steps: and when the difference value between the voltage data and the voltage obtained by the test of the integrated circuit test equipment is greater than 5%, judging that the power board card has a voltage precision error.
Applying voltage according to different voltage gears of the power supply, testing the voltage value through the testing system, obtaining the voltage testing value by a computer connected with the testing system, comparing the voltage testing value with voltage data obtained by testing the power supply by the universal meter 3, and if the difference is large (wherein the tested value of the universal meter 3 is accurate), indicating that the voltage source has a problem and needing to be calibrated by contacting a system developer.
S40: according to different current gears of the power supply board card, the integrated circuit testing equipment 1 is controlled to apply current corresponding to the gears, specifically, the integrated circuit testing equipment is connected with different sources through a relay, and the addition and subtraction operation of the current is realized so as to achieve the corresponding current gears.
S50: and acquiring current data obtained by testing the multimeter 3. Therein, data of multimeter 3 is transmitted to integrated circuit test apparatus 1. The FOVI source 11, the QTMU source 12 and the ACS source 13 inside the integrated circuit testing device 1 are led out by the metering plate 2, and the current on the metering plate 2 is measured by the universal meter 3 so as to measure the current applied to the power supply board card inside the integrated circuit testing device 1.
S60: and judging whether the power panel card has a current precision error or not according to the current data and the current obtained by the test of the integrated circuit test equipment. The method specifically comprises the following steps: and when the difference value between the current data and the current obtained by the test of the integrated circuit test equipment is more than 5%, judging that the current precision error exists in the power supply board card.
Specifically, the method comprises the following steps: applying current according to different current gears of a power supply, testing the resistance through which the current passes, testing the voltage of the resistance, obtaining the magnitude of the current by calculating I = U/R, obtaining the numerical value of the current test by a computer connected with the test system, comparing the numerical value with current data obtained by testing the power supply by the universal meter 3, and if the difference is large (wherein the value tested by the universal meter 3 is accurate), indicating that the power supply current has a problem and needing to be calibrated by contacting a system developer.
This patent has improved test system's availability factor through the measurement system of designing independently controllable integrated circuit test equipment. On one hand, the metering plate of the manufacturer has two functions in total: 1. metering, 2, calibrating, wherein the process takes a long time of about 5-6 hours; on the other hand, the metering plate designed by the company independently only has the metering function, and the metering time is about 2 minutes; if the engineer suspects that the precision problem occurs in the test system, the measurement can be performed in advance by using a measuring board independently designed by a company, if the precision problem actually occurs, the manufacturer is contacted to perform calibration, if the measurement precision is more accurate due to the test problem caused by misoperation, the test system can be operated again correctly to perform test program development, and in the process, the test efficiency of the chip is improved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (7)
1. The metering system of the integrated circuit testing equipment is characterized by comprising the integrated circuit testing equipment (1), a metering board (2) and a multimeter (3), wherein the integrated circuit testing equipment (1) comprises a power supply board card, the power supply board card comprises an FOVI source (11), a QTMU source (12) and an ACS source (13), the metering board (2) is respectively connected with the FOVI source (11), the QTMU source (12) and the ACS source (13), and the multimeter (3) is connected with the metering board (2);
the metering board (2) is used for leading out an FOVI source (11), a QTMU source (12) and an ACS source (13) from the inside of the integrated circuit testing equipment (1), so that the universal meter (3) can measure the voltage and the current of the power board card.
2. The metering system of the integrated circuit test equipment according to claim 1, wherein the metering board (2) comprises a relay module (21), a relay control bit interface module (25), a FOVI source interface module (22), a QTMU source interface module (24), an ACS source interface module (23);
one output pin of the relay module (21) is connected with a QTMU source interface module (24), the other output pin of the relay module (21) is connected with an ACS source interface module (23), a control pin of the relay module (21) is connected with a relay control bit interface module (25), an input pin of the relay module (21) is connected with an FOVI source interface module (22), the relay control bit interface module (25) is connected with a control unit module (14) of the integrated circuit testing equipment, the ACS source interface module (23) is connected with an ACS source (13) of the integrated circuit testing equipment (1), and the QTMU source interface module (24) is connected with an ACS source (12) of the integrated circuit testing equipment (1);
the control unit module (14) of the integrated circuit testing equipment (1) generates a control signal according to a testing rule, and the relay module (21) can select a connection object of the FOVI source interface module (22) according to the control signal.
3. The metering system of an integrated circuit testing device according to claim 2, characterized in that the relay module (21) comprises a circuit arrangement consisting of a plurality of relays and resistors.
4. The metering system of integrated circuit test equipment of claim 3 wherein the test rules refer to batch control of a plurality of relays to achieve step metering.
5. The metrology system of integrated circuit test equipment according to claim 1, wherein the integrated circuit test equipment (1) has a model number STS8200.
6. The metering system of the integrated circuit test equipment as set forth in claim 1, characterized in that the multimeter (3) is a six-digit half meter, particularly a keygage 34461A.
7. The metering system of the integrated circuit testing equipment as set forth in claim 6, wherein the six-bit half meter is connected in parallel with the power board through the metering board (2) when testing voltage, and is connected in series with the power board through the metering board (2) when testing current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221267105.XU CN218412797U (en) | 2022-05-25 | 2022-05-25 | Metering system of integrated circuit test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221267105.XU CN218412797U (en) | 2022-05-25 | 2022-05-25 | Metering system of integrated circuit test equipment |
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| Publication Number | Publication Date |
|---|---|
| CN218412797U true CN218412797U (en) | 2023-01-31 |
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| CN202221267105.XU Active CN218412797U (en) | 2022-05-25 | 2022-05-25 | Metering system of integrated circuit test equipment |
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- 2022-05-25 CN CN202221267105.XU patent/CN218412797U/en active Active
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