Semiconductor constant temperature and humidity testing equipment

1、 Application scenarios of constant temperature and humidity testing equipment

1. Semiconductor device testing: For diodes, transistors, and integrated circuits, the conductivity and carrier mobility need to be evaluated in high temperature and high humidity (such as 40 ℃/90% RH) or low temperature and low humidity (such as -40 ℃/10% RH) environments to prevent leakage or parameter drift. ‌

2. Electronic component verification: including capacitors, resistors, and PCB boards, testing their solder joint crack resistance, copper foil corrosion, and insulation resistance changes under temperature and humidity cycling to ensure safety in complex environments such as automotive electronics.

3. Evaluation of complete equipment: such as mobile phones, servers, and communication devices, simulate daily temperature and humidity fluctuations (such as hot and humid weather to cold and dry weather), detect screen display, battery life, and signal transmission stability.

IISemiconductor constant temperature and humidity testing equipmentMain technical indicators

Model: ADX-TH-1000D

1. Inner box size: 1000mm (W) × 1000mm (H) × 1000mm (D)

2. Outer box size: subject to actual size

3. Temperature range: -70 ℃∽ 150 ℃

4. Humidity range: 20% to 98% RH (see temperature and humidity range diagram for details)

5. Temperature fluctuation: ≤± 0.5 ℃

6. Temperature deviation: ≤± 2 ℃

7. Humidity deviation: ± 3% RH (when humidity>75% RH); ± 5% RH (when humidity is ≤ 75% RH);

8. Heating time: within 40 minutes at 20 ℃∽+100 ℃; (Under no-load conditions)

9. Cooling time: within 90 minutes from 20 ℃ to -70 ℃; (Under no-load conditions)

10. This device cannot be used to test or store items containing flammable, explosive, or volatile or corrosive gases

Note: The above indicators were measured at room temperature of+25 ℃ without a sample

IIISemiconductor constant temperature and humidity testing equipmentBox structure and materials:

1. Shell material: Steel plate with electrostatic spraying surface treatment.

2. Inner box material: SUS # 304 heat-resistant and cold resistant stainless steel plate.

3. Thermal insulation material: rigid polyurethane foam+glass fiber;

4、 Freezing system and heating system:

1. Heater: Electric heating tube heater

2. Refrigerator unit:

(1) Freezing method: stacked refrigeration method

(2) Compressor: Imported French Taikang fully enclosed compressor,

(3) Refrigerant: R404A/R23 environmentally friendly refrigerant (DuPont, USA)

(4) Condenser: Wave shaped fin type forced air supply condenser

(5) Evaporator: Slope type FIN-TUBE evaporator

5、 Humidification and dehumidification system:

1. Adopting an electronic parallel position micro humidification system, equipped with three imported magnetic spring switches, can reduce erroneous actions caused by electronic devices

2. The humidifier cylinder is made of stainless steel and comes with a water level observation window

3. Adopt evaporator coil dew point temperature (ADP) laminar contact dehumidification method

4. Equipped with a dual protection device for overheating and overflow, it can be used with peace of mind

5. The humidification/dehumidification system is independent

6. When supplying humidification cylinder water, pure water or RO reverse osmosis water should be used as much as possible

6、 Supply air circulation system:

1. Adopt a multi blade centrifugal circulating fan, reinforced with an axis and aluminum alloy rotating blades that are resistant to high and low temperatures, to achieve forced convection

2. FLOW THOW air supply method; Horizontal diffusion, vertical heat exchange, arc-shaped cycle

3. Adjustable side blowing air outlet and protective net return air outlet

7、 Controller: TH7010

1.7-inch high-definition color touch screen, with 65000 true colors and a resolution of 800 * 480. The core controller is PLC, which has a long service life, strong anti-interference ability, high control accuracy, fast data processing speed, and multiple signal combination relays (transistors) output. The signals can be logically processed (NOT, AND, OR, NOR, XOR)

2. Temperature and humidity 2-channel input, independently controlled, capable of 10 point linear slope compensation for each temperature and humidity of nonlinear sensors; There are two control modes for each channel: fixed value/program fixed value. The maximum time can be set to 9999999 hours; Program editing and looping, the program can be programmed with 100 groups, each group consisting of 100 segments, supporting free combination programming and output that can be controlled in series or parallel with high difficulty

3. Equipped with Chinese character input function, edit and input manufacturer information, fault alarm name, test name, data group name, etc

4. Communication function: The instrument is equipped with a USB interface, which supports USB storage, exporting historical curves, and data functions, and can be viewed and printed using computer software

5. Interface type: Chinese/English can be freely selected and switched; Temperature and humidity control display and single temperature control display can be freely selected

6. Compressor delay function; Manual, automatic, and timed shutdown functions; Appointment activation function

7. 4 internal alarms and 8 external alarm functions can be customized, and the external input DI alarm signal can be freely switched between normally closed or normally open signal modes

8. The instrument is equipped with an alarm buzzer, which can freely set whether to delay the output when the alarm is triggered, how long to delay, whether to stop the machine, whether the buzzer will sound an alarm, whether the alarm interface will pop up, whether to output external alarm points, and other functions; In case of hardware failure at the input/output point, the backup function of moving the point; Water shortage prompt, automatic replenishment; Temperature and humidity operation upper and lower limit alarms, automatic alarms for overheating, overload, etc

9. The controller can display the current operating status in real time, such as set values, real-time values, running time, number of groups and segments, number of cycles, and other main process parameters, as well as statistical data; Various control parameters can be set arbitrarily

10. Real time display of temperature and humidity PV/SP curves; And it can also query historical curves

8、 Security protection system:

1. System control circuit fuse

2. Equipped with a non fuse protection switch

3. Overtemperature Water cut-off overheat protection switch

4. Overload protection device for refrigeration compressor

5. System overcurrent protection device

6. Fault indicator light

7. Controller setting error, fault display and warning