Piso 1, No. 3, Avenida Shugang, Vila Hongmei, Cidade de Dongguan, Província de Guangdong, China

Fabricante de câmaras de teste ambiental há 20 anosMais de 3000 entregas a clientes em todo o mundo           Email: shirley@deruitest.com
Linha Direta de Consultoria Global:+86 15580327593

Medidor de Fluxo de Calor de Choque de Temperatura Alta e Baixa para Chips

A 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.
Como 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 refrigeração Mechanical refrigeration; no liquid nitrogen stated
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Selection Checklist

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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.

Perguntas Frequentes

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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Faixa de temperatura
-65 °C a + 225 °C
Taxa de conversão de temperatura típica
"-55°C a + 125°C;≤; 13 segundos
Precisão no controlo de temperatura
± 1 °C
Precisão de exibição/configuração
± 0,1 °C
Taxa de fluxo de gás do sistema
4-18 SCEM (1,9L/s-8,5L/s)
Operação do sistema
Tela sensível ao toque de cor HD, 7" TET
Idioma do sistema
Chinês/Inglês
Modo de operação
Modo manual ou modo de programa
Modo de deteção
Ar, DUT
Controlo de temperatura
Interno: TC; Remoto/externo: T, K; Opcional: RTD
Interface de comunicação
RS-232, LAN; Opcional: GPIB
Refrigerante
Refrigerante ambiental HCFC
Controlo de elevação
Barra de elevação: elétrica; CABEÇA: controlo pneumático; Esta operação é realizada através de uma interface local ou remota
Extensão do braço
X: 1300mm, Y: 400mm, Z: 360°
Tamanho do escudo térmico
Padrão: 140mm; Outros: Ф74mm/Ф178mm (fornece várias opções de personalização)
Tamanho do motor principal
638mm * 970mm * 970mm (comprimento * largura * altura)
ruído
≤59DBA
peso
205KG
Requisitos de energia
220VAC/50Hz, 30Amp, 1Fase
Requisito de fonte de ar
 
gás
Ar limpo: livre de moléculas de óleo, humidade e partículas
Temperatura de entrada
+15 °C a +25 °C
Pressão de entrada
90-110 Psig (6.2-7.6Bar)
Taxa de fluxo de entrada
15-30 SCFM (7.2 a 14.3L/s), padrão 25SCFM (11.8L/s)
Ponto de orvalho
< 10°C@ 6.2Bar (90Psi), é recomendado um gás seco com ponto de orvalho abaixo de -20°C
Conteúdo de óleo no gás
≤ 0,01 ppm, filtro para 0,01 micron de poluição por óleo
Requisitos do ambiente de trabalho
 
temperatura
+15 °C a +25 °C
Humidade relativa
20% a 65%
  1. P: O que é um medidor de fluxo de calor de choque de alta e baixa temperatura de chip?
    A: É um sensor de precisão usado para medir com exatidão a densidade de fluxo de calor na superfície de pequenos dispositivos, como chips, durante rápidas mudanças de temperatura alta e baixa (choque térmico).

  2. P: Qual é o seu princípio de funcionamento principal?
    A: O princípio central baseia-se no Efeito Seebeck. O chip sensor contém micro-termopares que geram um sinal de voltagem quando ocorre uma diferença de temperatura através do chip, proporcional à densidade de fluxo de calor.

  3. P: Por que é necessário um medidor de fluxo de calor "de choque" especializado?
    A: Os medidores de fluxo de calor comuns têm tempos de resposta lentos. O tipo "de choque" requer uma velocidade de resposta extremamente alta e estabilidade para capturar mudanças térmicas transitórias sem atraso ou distorção.

  4. P: Qual é a métrica de desempenho mais crítica?
    A: Tempo de resposta térmica— quão rapidamente o sensor reage às mudanças de temperatura — geralmente necessário ser muito curto (nível de milissegundos).

  5. P: Em que campos é utilizado principalmente?
    A: Testes de fiabilidade de chips eletrônicos, testes de gestão térmica de packs de baterias, testes de fadiga térmica de materiais aeroespaciais, avaliação do desempenho de dissipação de calor de lâmpadas LED, etc.

  6. P: Como escolher a faixa de temperatura adequada para o meu teste?
    A: Selecione com base nos seus padrões de teste. Faixas comuns incluem -80°C a +200°C ou mais extremas, como -185°C a +300°C, cobrindo os limites das suas condições experimentais.

  7. P: Como é que este chip de medidor de fluxo de calor micro é instalado?
    A: Normalmente é fixado de perto à superfície do dispositivo em teste usando pasta térmica ou pressão mecânica para garantir bom contacto térmico e erro de medição mínimo.

  8. P: Que dados é que ele mede?
    A: Dois pontos de dados principais: densidade de fluxo de calor (W/m² ou W/cm²) e a própria temperatura do sensor (°C).

  9. P: A sua calibração é complicada?
    A: Relativamente complexa. Requer equipamento especializado de fonte de calor padrão para estabelecer uma função entre a saída de voltagem e o fluxo de calor padrão conhecido. Recomenda-se calibração regular pelo fabricante ou instituições certificadas.

  10. P: Além do fluxo de calor, o que mais pode medir?
    A: Através da sua função de medição de temperatura, pode analisar indiretamente parâmetros como condutividade térmica e resistência térmica de contacto.

  11. P: Como é que difere de uma câmara térmica?
    A: Uma câmara térmica mede a distribuição de temperatura da superfície (2D) — o resultado. Um medidor de fluxo de calor mede a taxa de transferência de energia (1D) — o processo. Ambos são frequentemente utilizados de forma complementar.

  12. P: Que especificações devo considerar ao comprar?
    A: Focar em: faixa, sensibilidade, tempo de resposta, precisão, faixa de temperatura de operação, tamanho do chip e durabilidade da embalagem.

  13. P: Quais são as fontes comuns de erro durante os testes?
    A: Principalmente resistência térmica de contacto (má contacto entre o sensor e a superfície), a perturbação do campo térmico pelo sensor, e taxas de variação de temperatura que excedem a sua capacidade de resposta.

  14. P: Qual é a sua vida útil?
    A: Depende do ambiente de utilização. Choques térmicos extremos frequentes aceleram o envelhecimento. Recomenda-se calibração regular de sensibilidade, e a substituição é necessária após exceder o ciclo de calibração ou dano físico.

  15. P: Quais são os requisitos para o sistema de aquisição de dados?
    A: É necessária uma placa de aquisição de dados de alta resolução e alta taxa de amostragem para registar com precisão os sinais de tensão minúsculos que mudam rapidamente durante o choque térmico.

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