High-temperature Reverse-deviation Test Equipment

1. System specification, configuration, and quantity

project name

High-temperature antibias test system

Project model

GK6500

quantity

A set

volume

1745mm(W)×1245(D)mm×1850mm(H)

weight

500kg

Test type

HTRB

range of application

The SiC MOSFET, IGBT, IPM, bridge reactor and other semiconductor devices suitable for various packaging types of SI / SIC / GaN chips for high temperature antibias test.

meet a criterion

The test lines and test methods shall meet the relevant standard requirements of MIL-STD-750 Method 1037, IEC60749-9, AQG-324 and AEC Q101.

system reliability

The average free operation time of the system is 10000 hours.

Test capacity

Heating platform

24

Test station

24 Half-bridge / 4 cavity per cavity =96

48 Station / 4 cavity per cavity =192

condition of experiment

test temperature

175℃

Maximum bias voltage

2000V

Configuration list

Accessories name

Manufacturer / Brand

Model / configuration

quantity

Main engine frame and power distribution system

Gao Kun electronic

/

1 set

Aging test power supply

Gao Kun electronic

/

8 units

Channel control detection and drive panel

Gao Kun electronic

/

8 block

Heat disk control board

Gao Kun electronic

/

24 block

Industrial control computer (all-in-one touch screen)

Hao teng

15 Inch

1 set

High-temperature antibias test system measurement and control software

Gao Kun

High temperature antibias measurement and control software V3.0

1 set

random file

1. User Manual (Software operation manual)

1 copy

2. User Manual (Hardware operation manual)

1 copy

3. Metrological verification report

1 copy

4. Warranty

1 copy

5. Warranty card

1 copy

6. Certificate of qualification

1 copy

7. Box sheet

1 copy

2. Technical specification and description

operational software

Software interface diagram

Main interface diagram of software

Description: Batch information of each test channel is shown on the left, function options are shown on the top, leakage data of each station on the right, and power communication setting on the lower left.

Leakage curve interface

It can monitor the leakage current of each station in real time and depict the leakage curve.

With device library, database, batch information, operation process, test state, plug board detection, sampling interval setting, etc.

Run the topology

Line topology

Each loop supports a fast shut-off

Support negative pressure off (each gate of lower bridge arm)

The upper and lower Bridges are charged and monitored at the same time.

Each channel has 6 hot plates, 24 semi-bridge collection, supporting 8 three-phase full bridge independent collection (maximum), a total of 8 channels.

Temperature measurement mode

The junction temperature is calculated by the leakage current

Set several temperature points on the heat plate, and balance each temperature point for a period of time, generally for 30min. At the end of the time, the power supply gives the leakage at the corresponding temperature point measured by the voltage. Other points are the same (the figure below is the K value test interface)

2, and perform the conversion by Rthj-c

Enter the good junction crust thermal resistance value in advance, and calculate the junction temperature as follows: T j = Tc + Rth * Vce * Ice

Each heat plate has two temperature measurement points, one PT 100 located in the middle of the heat plate, with a spring retractable. The other is buried inside the hot plate to monitor the hot plate temperature. Constant shell temperature Tc mode and constant hot plate temperature mode can be set through the software.

structure declaration

Structure description: The test cabinet is used for 24 test platforms. The test platform is a layers layer structure, with 6 in each layer. Adopt the drawer-type structure. Six platforms for a group, pull out and advance together.

Observation window: each drawer has an observation window at the position of the device to facilitate the observation module;

Cooling fan: each floor platform is equipped with a forced cooling fan, which is used for the cooling of the platform. When the chip temperature or shell temperature exceeds the setting, the measuring device can be quickly cooled down (automatic mode).

fixture

Configuration list

panel

Polyimide (Polymide) plate, Tg 260℃ at 175℃ for long time (@200℃ over 2000h).

short-circuit protection

The plate is equipped with fast fused ceramic fuse, when the test device short circuit.

Heating platform

material quality

Aluminum plate material, the module installation surface flatness is less than 50um.

Size of heat plate: 130 * 180mm

structural representation

The heating platform is divided into three layers, namely, electric heating board, ceramic insulation board and aluminum board layer. The device is mounted on an aluminum plate. There is a temperature measuring point in the middle of the heating plate.

Device installation mode

The bottom plate screw fixed (ED3 package) + clamp electrical connection board; each module has the PCB board, the circuit is connected to the PCB board, the board is connected to the module.(Aluminum sheet can be replaced)

Temperature measurement mode

Each heating platform reserves two temperature measurement points, one is the temperature measurement of the platform temperature, and the other is the measurement of the shell temperature of the device. When the device is locked on the platform, the shell temperature is measured by a temperature probe reserved at the bottom.

Main indicators

Temperature range: room temperature ~200℃, resolution 0.1℃;

Temperature deviation: ± 3℃;

Temperature uniformity: 1℃;

Temperature overshoot: 3℃;

control method

Platform temperature \ device shell temperature can be selected as the control reference point, and the platform temperature can be controlled through the temperature feedback at this point.

The temperature display

Two temperature values are shown, one is the temperature Ta of the heating platform, and one is the shell temperature Tc of the device.

Power specifications

Power supply appearance

Power configuration

control model

Manual control: manually adjust the power supply to set the test parameters.

The power supply is normally on the power mode Power supply step up power mode

Software program control: through the test conditions set by the system software, the system automatically controls the load power supply (multiple up and down modes).

Drive board

major function

Idss current detection: each device has a separate upper and lower bridges to simultaneously monitor (24 loops, meet 12 groups of upper and lower Bridges, each loop supports fast shutdown);

Voltage detection: the body in each chamber;

Heating platform temperature detection, shell temperature TC monitoring;

After leakage exceeds the limit, the relay is cut off protection within 100ms;

Detection accuracy

Idss electric leakage monitoring

Current detection range: 1uA~100.0mA, the differentiation rate and sampling accuracy are divided as follows:

1-100 uA: resolution: 0.1 uA, precision ± (1% + 0.2) uA

0.1-1 mA: Resolution: 1 uA, precision ± (1% + 2) uA

1-100 mA: resolution: 10 uA, precision: ± (1% + 20) uA

The range of the current is automatically selected according to the current actual measured leakage current.

voltage

Voltage detection range: 1V~2000V.

Less than 300V: resolution is 0.1V, accuracy: 1%±0.2V

When greater than 300V: resolution is 1V, accuracy: 1% ± 1V

Measurement and control function

major function

Test each chamber voltage / upper / lower bridge Ir current detection, platform temperature monitoring, shell temperature TC monitoring, and junction temperature Tj (the junction temperature mode of the equipment is monitored according to Tj = Tc + Rth * Vce * Ice) formula.);

Test conditions can be set: CE, GE voltage value, upper and lower half bridge test respectively or simultaneously, over temperature protection value, leakage current protection value, voltage protection value, module thermal resistance value Rth;

Set the function of timing cooling off voltage, the test end time, the temperature automatically drops to 55C, and then turn the power off.

Minimum storage interval of 30s;

Communication status detection of drive board and heating platform control board;

Over-limit protection at each station (each station relay switch + fast melting ceramic fuse).

Have the test data to automatically generate an editable test report.

It can monitor the leakage current of each station in real time and depict the leakage curve.

Support Chinese and English switch, theme color switch at will.

Random configuration of industrial computer, touch display, easy operation; Win10 system, with wireless network card;

Work interface

The parameter status of each heating platform can be displayed in real time;

(All station status parameters can be displayed in real time, and the display interface and data collection are run independently).

Output report examples that can be customized as required.(Batch number information, drawing method, etc.)

Save interval time

Vr / Ir / Tr / Tj is refreshed in real time, and the data sampling interval can be set from 1 second to 9999 minutes.

data management

The original number is recorded in a custom format and stored in the hard disk, and the corresponding software can draw the leakage curve and generate Excel data report according to the record. Maximum number of records> 999999.

backup

The system has the function of automatic backup of data without accidental power failure.

safety precautions

power-off protection

In case of accidental power failure, the system automatically cuts off the total power supply, and restores the normal operation of the system artificially.

else

The power supply part of the equipment has a leakage protection switch, and the shell of the whole machine is safely grounded.

System usage environment

ambient temperature

5～40℃

relative humidity

Not greater than 80% RH atmospheric pressure 750 ± 30mmHg

Power grid voltage

AC220V±22V

Power grid frequency

50HZ±1HZ

service rating

12KW;

surrounding environment

There is no strong magnetic field interference and harmful gas erosion around it

Water gas requirements

no requirement

Installation, commissioning and acceptance

term of delivery

According to the contract requirements

Packaging transportation mode

Transportation and packaging shall be handled by the Supplier. The packing box is firm, and indicate the lifting center of gravity and the lifting part. The packing box meets the long-distance transportation, shock proof and rain proof, ensures the safety and stability of the equipment transportation, and reaches the destination in good condition.

Equipment installation and commissioning

After the equipment arrived at the destination, the supplier arrived at the user site as soon as possible for installation, debugging, testing, both parties signed by the supply content and provide equipment list and technical data out of the box inspection, check the equipment and random spare parts, accessories are intact, if there is damage or does not comply with the requirements, etc., the supplier is responsible for filling.

final acceptance

Pre-acceptance time: the manufacturer shall notify the buyer in advance according to the production schedule to select the personnel and handle the relevant procedures, and the demander shall send the pre-acceptance personnel to the supplier for pre-acceptance.

Main contents of pre-acceptance: assembly quality and appearance of equipment; confirmation of main components and accessories; accuracy of equipment test; supporting condition of main functions and accessories; pre-acceptance report (or memorandum) signed by both parties.

Final acceptance of equipment: the supplier shall test the aging system after the installation, commissioning and self-inspection. After the trial operation, the supplier shall conduct final acceptance.

Acceptance criteria: acceptance according to the "technical agreement" signed by both parties.

Technical support and follow-up maintenance

Technical training / support

The supplier shall provide on-site technical training, so that the technical personnel of the buyer can basically master the operation method of the equipment, the working principle of the equipment, the daily maintenance and maintenance, the determination and solution of common faults, etc. During the pre-acceptance by the Demander, the supplier shall be responsible for the initial training of the design principle and operation of the equipment.

During the final acceptance, the supplier shall be responsible for the operation and use training, operation safety training and basic maintenance training for the demander, so that both the users and maintenance personnel responsible for the equipment can master the operation and necessary maintenance knowledge of the equipment.

In the case of hardware configuration basically unchanged, the buyer enjoys lifelong free equipment software upgrade service. The supplier shall provide equipment technical consultation, operation training, and provide the latest information and data on equipment improvement and maintenance technology.

quality assurance

The Supplier warrants that the goods supplied are new, of the best materials and superior workmanship, and in all respects meet the quality, specifications and performance requirements specified in the Contract. The Supplier ensures the correct installation, reasonable operation and maintenance of the goods and good operation during the life of the goods.

Warranty period: 1 year.

The seller is responsible for the lifetime maintenance of the equipment;

For quality problems, the seller shall respond within 24 hours and solve the problems within one week at the latest;

When the software is upgraded, the same type of equipment will provide free upgrade service.

Confidentiality agreement

The Seller undertakes to keep confidential all technical data and projects provided by the Buyer and shall not disclose any relevant technical data and information to any third party.

The Buyer undertakes to keep confidential all technical data and projects provided by the Seller and shall not disclose any relevant technical data and information to any third party.