Calle Shugang 1, No. 3, Town de Hongmei, Ciudad de Dongguan, Provincia de Guangdong, China

Fabricante de cámaras de prueba ambiental con 20 años de experienciaMás de 3000 entregas a clientes en todo el mundo           Correo electrónico: shirley@deruitest.com
Línea directa de consulta global:+86 15580327593

Medidor de flujo de calor de choque de alta y baja temperatura para chips

La DERUI semiconductor temperature forcing system delivers rapid hot and cold air directly to ICs, memory, PCBs and optical modules for powered DUT characterization, failure analysis and ATE testing.

Air Range: −65°C to +225°C
Changeover: −55°C to +125°C in 13 s (stated air-stream transition)
Air Flow: Up to 18 SCFM
Control: ±1°C stated; 0.1°C display resolution
Cooling: Mechanical refrigeration; no liquid nitrogen stated
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Localized Thermal Stream for DUT Testing

Rapid Temperature Forcing for Semiconductor and Electronics Validation

The DERUI semiconductor temperature forcing system delivers a controlled hot or cold air stream directly to a device under test. It supports fast characterization of ICs, memory, PCBs, optical modules and 5G components while the DUT remains connected to electrical test equipment.

−65°C to +225°CStated outlet-air operating range
13 s ChangeoverStated −55°C to +125°C air transition
Up to 18 SCFMConditioned-air flow
No LN₂ RequiredMechanical refrigeration system
Correct Product Category

This Is a Temperature Forcing System—not a Heat Flux Meter

A heat flux meter measures heat-transfer rate per unit area. This equipment instead creates and controls a localized thermal environment around a DUT. The technically correct search terms are temperature forcing system, thermal stream or thermostream system.

IC Characterization

Measure functional and electrical behavior at hot, cold and intermediate case-temperature conditions.

Memory and Storage

Test Flash, eMMC and related devices for startup, timing and data performance across temperature.

5G and Optical Modules

Condition SFP/transceiver modules, RF devices and communication boards while connected to ATE or a functional test setup.

Important measurement boundary: outlet-air temperature, DUT case temperature and semiconductor junction temperature are different values. Define which temperature controls the test and where the feedback sensor is installed.
Cómo funciona

Focused Hot and Cold Air Around the DUT

1

Generate the Air Stream

Mechanical refrigeration and electric heating condition the process air over the selected operating range.

2

Deliver Through a Nozzle

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Método de enfriamiento Mechanical refrigeration; no liquid nitrogen stated
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Selection Checklist

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Typical Workflow

Integrating Thermal Stream with ATE

1

Characterize the Setup

Verify sensor placement, shroud sealing and the relationship between air, case and any estimated junction temperature.

2

Run the Sequence

Command the target, wait for the agreed stabilization rule, execute the electrical test and record temperatures with results.

3

Return Safely

Warm the DUT above the condensation-risk point before opening the shroud or removing it from dry-air protection.

Preguntas Frecuentes

Semiconductor Temperature Forcing System FAQs

What is a semiconductor temperature forcing system?

It delivers controlled hot or cold air to a localized DUT so electrical behavior can be measured at selected temperatures without conditioning a full chamber.

Is it a heat flux meter?

No. It does not primarily measure heat flux in W/m². It is a thermal-stream source and temperature-control system.

Does the DUT reach −55°C to +125°C in 13 seconds?

Not necessarily. The figure describes the stated air transition. DUT stabilization depends on thermal mass, power, fixture, airflow, sensor and tolerance.

Why use it instead of a temperature chamber?

It provides faster localized conditioning and easier access to probes, sockets and ATE, making it useful for device characterization and failure analysis.

Can it control junction temperature?

Directly controlling junction temperature requires a suitable electrical sensing or thermal model. Standard setups more commonly control air or package-case temperature.

Does it require liquid nitrogen?

The supplied specification states mechanical refrigeration without LN₂. The system still contains a closed refrigeration circuit; refrigerant type and service details should be confirmed.

How is condensation prevented?

Use dry conditioned air, a well-sealed shroud, controlled purge and warm-up, and keep the DUT protected until it is above the ambient dew point.

What should I send for selection?

Provide DUT/fixture drawings, power dissipation, target temperature, sensor/control point, transition and stability requirements, test sequence and laboratory utilities.

Configure the Thermal Stream Around Your DUT

Send DERUI your device, socket and fixture drawings, power dissipation, temperature profile, feedback method and ATE sequence. We will review the nozzle/shroud, airflow and control configuration.

Request a DUT Thermal Review

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Rango de temperatura
-65 °C a + 225 °C
Tasa de conversión de temperatura típica
"-55°C a + 125°C;≤; 13 segundos
Precisión en el control de temperatura
± 1 °C
Precisión de visualización/configuración
± 0.1 °C
Tasa de flujo de gas del sistema
4-18 SCEM (1.9L/s-8.5L/s)
Operación del sistema
Pantalla táctil a color HD, de 7" TET
Idioma del sistema
Chino/Inglés
Modo de operación
Modo manual o modo programa
Modo de detección
Aire, DUT
Control de temperatura
Interno: TC; Remoto/externo: T, K; Opcional: RTD
Interfaz de comunicación
RS-232, LAN; Opcional: GPIB
Refrigerante
Refrigerante ambiental HCFC
Control de elevación
Varilla de elevación: eléctrica; CABEZA: control neumático; Esta operación se realiza a través de una interfaz local o remota
Extensión del brazo
X: 1300mm, Y: 400mm, Z: 360°
Tamaño del escudo térmico
Estándar: 140mm; Otro: Ф74mm/Ф178mm (proporciona varias opciones de personalización)
Tamaño del motor principal
638mm * 970mm * 970mm (longitud * ancho * altura)
ruido
≤59DBA
peso
205KG
Requisitos de energía
220VAC/50Hz, 30Amp, 1Fase
Requisito de fuente de aire
 
Gas
Aire limpio: libre de moléculas de aceite, humedad y partículas
Temperatura de entrada
+15 °C a +25 °C
Presión de entrada
90-110 Psig (6.2-7.6Bar)
Caudal de entrada
15-30 SCFM (7.2 a 14.3L/s), estándar 25SCFM (11.8L/s)
Punto de rocío
< 10°C@ 6.2Bar (90Psi), se recomienda un gas seco con un punto de rocío por debajo de -20°C
Contenido de aceite en el gas
≤ 0.01 ppm, filtro de 0.01 micrones para contaminación de aceite
Requisitos del entorno de trabajo
 
temperatura
+15 °C a +25 °C
Humedad relativa
20% a 65%
  1. P: ¿Qué es un medidor de flujo de calor por choque de temperatura alto y bajo para chips?
    A: Es un sensor de precisión utilizado para medir con exactitud la densidad de flujo de calor en la superficie de pequeños dispositivos como chips durante cambios rápidos de temperatura alta y baja (choque térmico).

  2. P: ¿Cuál es su principio de funcionamiento principal?
    A: El principio central se basa en el Efecto Seebeck. El chip sensor contiene micro-termopares que generan una señal de voltaje cuando ocurre una diferencia de temperatura a través del chip, la cual es proporcional a la densidad de flujo de calor.

  3. P: ¿Por qué se necesita un medidor de flujo de calor "de choque" especializado?
    A: Los medidores de flujo de calor ordinarios tienen tiempos de respuesta lentos. El tipo "de choque" requiere una velocidad de respuesta y estabilidad extremadamente altas para capturar cambios térmicos transitorios sin retraso ni distorsión.

  4. P: ¿Cuál es su métrica de rendimiento más crítica?
    A: Tiempo de respuesta térmica—qué tan rápido reacciona el sensor ante cambios de temperatura— generalmente se requiere que sea muy corto (nivel de milisegundos).

  5. P: ¿En qué campos se utiliza principalmente?
    A: Pruebas de fiabilidad de chips electrónicos, pruebas de gestión térmica de paquetes de baterías, pruebas de fatiga térmica de materiales aeroespaciales, evaluación del rendimiento de disipación de calor de lámparas LED, etc.

  6. P: ¿Cómo elijo el rango de temperatura adecuado para mi prueba?
    A: Seleccione según sus estándares de prueba. Los rangos comunes incluyen -80°C a +200°C o rangos más extremos como -185°C a +300°C, cubriendo los límites de sus condiciones experimentales.

  7. P: ¿Cómo se instala este chip de medidor de flujo de calor micro?
    A: Por lo general, se fija estrechamente a la superficie del dispositivo bajo prueba usando pasta térmica o presión mecánica para garantizar un buen contacto térmico y minimizar el error de medición.

  8. P: ¿Qué datos mide?
    A: Dos puntos de datos principales: densidad de flujo de calor (W/m² o W/cm²) y la propia temperatura del sensor (°C).

  9. P: ¿Su calibración es complicada?
    A: Relativamente compleja. Requiere equipo especializado de fuente de calor estándar para establecer una función entre la salida de voltaje y el flujo de calor estándar conocido. Se recomienda calibración regular por parte del fabricante o instituciones certificadas.

  10. P: Además del flujo de calor, ¿qué más puede medir?
    A: A través de su función de medición de temperatura, puede analizar indirectamente parámetros como conductividad térmica y resistencia térmica de contacto.

  11. P: ¿En qué se diferencia de una cámara termográfica?
    A: Una cámara termográfica mide la distribución de temperatura superficial (2D)—el resultado. Un medidor de flujo de calor mide la tasa de transferencia de energía (1D)—el proceso. Ambos se utilizan a menudo de forma complementaria.

  12. P: ¿Qué especificaciones debo considerar al comprar?
    A: Enfóquese en: rango, sensibilidad, tiempo de respuesta, precisión, rango de temperatura de operación, tamaño del chip y durabilidad del embalaje.

  13. P: ¿Cuáles son las fuentes comunes de error durante las pruebas?
    A: Principalmente resistencia térmica de contacto (mala contacto entre el sensor y la superficie), la perturbación del campo térmico por parte del sensor, y tasas de cambio de temperatura que superan su capacidad de respuesta.

  14. P: ¿Cuál es su vida útil?
    A: Depende del entorno de uso. Los choques térmicos extremos frecuentes aceleran el envejecimiento. Se recomienda calibración regular de sensibilidad y reemplazo después de superar el ciclo de calibración o daño físico.

  15. P: ¿Cuáles son los requisitos para el sistema de adquisición de datos?
    A: Se necesita una tarjeta de adquisición de datos de alta resolución y alta tasa de muestreo para registrar con precisión las señales de voltaje diminutas y que cambian rápidamente durante el choque térmico.

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