Integrated Circuit Dynamic High Temperature Aging System

Aging temperature range

Aging temperature: room temperature150℃ (maximum) can be set arbitrarily

protection function

Protection function: independent of the system's over temperature protection device (control error ≤±)3℃) and leakage protection device; When the temperature exceeds the limit, the system automatically shuts down the high-temperature chamber heating and terminates all aging zone tests to ensure the safety of the test devices.

temperature gradient

125Less than at ℃3℃；

temperature deviation

Less than ±2℃；

temperature fluctuation

less than1℃；

heating power

The heating power of the high-temperature box is2.5kW(Under continuous heating conditions)；

Temperature overshoot

less than3℃；

Recording function

Capable of digitally displaying the temperature of the test chamber,The microcomputer can detect and record the temperature of the test chamber in real time, display the temperature parameters of the entire test process in table form and curve drawing form, and record the time when the temperature exceeds the limit. It also has an over temperature alarm protection function.

Experimental air duct

Reasonable design of test box air duct,Good temperature uniformity. The temperature setting is consistent with the actual measurement.

Aging board channel

provide16Aging board slot, can be installed simultaneously16Block aging board.

2. The main technical indicators of aging power supply are shown in the following table:

serial number

output voltage

output current

load regulation/ripple

1

0-25V

0-60.0A

1%+50mV / 50mV

Digital display of output voltage, output current, and overvoltage protection voltage values. Overcurrent, overvoltage, overheating and short circuit protection

Control method

Each unit is a computer-controlled high-power switching power supply, which can achieve remote communication operation and intelligent control with the upper computer through a programmable interface.

3. Control mode of graphics driver board

One board1District work mode

The whole machine adopts1board1Zone control method, total16An independent aging zone, each graphic driver detection board has on control, aging process monitoring, and shutdown control. Programmable secondary power supply and64Monitoring function for digital signal generation on the road;

The configuration capability of each zone

Each aging zone corresponds to1Set of secondary power supply (total)4Road:VCCTheVCLKTheVMUXTheVEE）The1Set signal driver (total)64Road)4Analog signals with independent control, detection of secondary power supply for each channel, and waveform testing of device pins/Oscilloscope inspection channel (total)64Road, a set of frequency testing circuits, etc;

Aging varieties

complete machine16The graphic driver detection board can age simultaneously16A variety, independent online detection of work status,64An aging signal observation interface, observing signal waveforms through an oscilloscope

protection function

The system provides over temperature, over pressure, and over current protection functions, which can automatically cut off relevant faulty components during protection.

4.Complete machine testing capability

Each board64Road detection signal. complete machine16*64=1024detection signal

5. Main indicators of graphics driven detection board

Complete machine provided16A set of independently controlled graphics driver detection boards, each set of graphics driver detection boards has independent programmable64Digital signal generation and driving, programmable four-way secondary power supply, four-way analog signal generation and driving, detection of secondary power supply, communication control between upper and lower computers, pin signal detection of aging board components, etc; Each graphics driver detection board is independently composed1Corresponding to each district1An aging board channel.

5.1Characteristics of digital signals

1

Each graphics driver monitoring board provides64Each digital signal can independently output three states.

2

Each signal can be set to address, number, and control attributes.

3

Programming step size setting range:50ns-0.4s

4

Programming step size setting resolution is50ns

5

Programming depth for each signal:1-8Mbit

6

Maximum frequency:10MHz

7

Signal programmable range:1-5.5VDrive current:100mA

8

Signal edge: ≤10ns

5.2Characteristics of secondary power supply

5.2.1

Each set of graphics driver detection board provides programmable controlVCC(Working positive power supply)VMUX(Load power supply)VCLK(Signal power supply)VEEThere are four secondary power sources (working negative power supply) in total; Output setting resolution is0.1V；

5.2.2

Output characteristic index table:

5.3Analog signal characteristics

5.3.1

Each graphics driver detection board has4An independent programmable analog signal with adjustable waveform (sine, triangle, leading edge sawtooth, trailing edge sawtooth, square wave), frequency, amplitude, and offset

5.3.2

signal frequency1k-1MHzProgrammable settings, frequency error less than ±1%；

5.3.3

Signal programmable controlV_PPScope: ±0.5V-±10V（100k(Below); ±0.5V-±5V（100k~2M）

5.3.4

DC offset: can be set to-1/2VPP- +1/2VPP

5.3.5

Programming step size:0.1V

5.3.6

The maximum driving current for each analog signal is0.5A

5.4★High speed communication

adoptTCP/IPHigh speed communication methods and multi-threaded control software,8MWhen programming depth, the sending time of all zone parameters is ≤3In seconds.

5.5Detection characteristics

Can detect the output voltage of each programmable secondary power supply

Detection range:0-18VDetection error:≤1%±0.1V

Can detect the voltage value of the secondary power supply and depict the voltage-time curve

Can detect secondary power supply current（VCCTheVMUXTheVEE）

Detection range:0-10ADetection error:≤1%±0.1A

Can detect the current value of the secondary power supply and depict the current-time curve

Can detect the frequency of input and output pin signals of aging devices

Detection range:1-10000kHzDetection error: ≤±1%

Can detect the temperature of the test chamber in the high-temperature test chamber

Detection range:0-150℃； Detection error: ≤1%±1℃

Can detect, record, and test the temperature of the chamber, and depict the temperature-time curve

5.6Aging board interface characteristics (compatible with conventional)ELEA-V）

5.6.1

Directly connect with the aging board using the gold finger method

5.6.2

The interface mode is100+72Dual bus interface, corresponding one-to-one with aging board interface

5.6.3

The aging board interface includes64Road digital signal64Road inspection and testing4Road simulation signal3Road secondary power supply（VCCTheVMUXTheVEE）Plug in status detection, power and signal grounding, etc.

5.7control characteristics

5.7.1

The aging time for each aging zone can be set separately:0-1000Hours or more can be set arbitrarily. After the aging of the device is completed, the system will automatically sound an alarm and can shut down at a scheduled time.

5.7.2

Each aging zone can be individually controlled for aging initiation, aging pause, aging continuation, and aging termination.

5.7.3

The test device library parameters for each aging zone can be set separately, corresponding to individual device models.

6.Whole machine air duct design

Adopting the left side air inlet and top outlet air duct mode, an exhaust duct can be connected above the equipment to remove heat from the outside, improve the laboratory environment, avoid the influence of multiple devices, and enhance the reliability of equipment operation. At the same time, a detachable mesh panel is installed at the air inlet for easy cleaning.

7. Running indicator light

Install a running status indicator light on the top of the device to visually indicate the device's operating status (idle, normal operation, or abnormal), making it convenient for operators to detect and promptly troubleshoot abnormal conditions.

8. Adopting a rack mounted industrial computer, equipped with standard keyboard, mouse, and17Inch LCD display. Adopting a multi-threaded control software system.

9. Centralized control system

Multiple sets of reliability testing equipment can be networked and operated through a local area network, with real-time monitoring of the operating status of each device through a server, and centralized collection of test data for analysis and processing.

10.Equipment usage conditions:

1

Ambient temperature5℃-35℃

2

Relative humidity: not greater than80%Atmospheric pressure:750±30 mmHg

3

Grid voltage:AC380V±38V

4

Grid frequency:50Hz±1Hz

5

There is no strong magnetic field interference or harmful gas erosion in the surrounding environment

6

Power (maximum): less than10.0kW