Stelight Instrument Specification High Power Burn-In System BI8201

General Information

Stelight Instrument BI8201 Burn-In and Life Test system is designed for Chip，Bar，Die, CoS or TO Burn-in and life test under 500mA current. It provide a temperature controlled environment in which to test photonics components. Devices can be tested either packaged or in the chip-carrier form. Different devices only need to change different burn-In panel and fixtures. System can show every devices status information, each panel can do burn-in independently.

Stelight Instrument BI8201 support database, Burn-in data can upload to database. With integrated Quick Check function, it is easy to check every devices information very quickly.

In order to guarantee system reliability of working around 0-120oC inside the oven, every burn-in drawer has independent thermal unit. With real-time monitor’s feedback, the system can automatically control the temperature to guarantee temperature uniformity all over the system. The alarm will be generated when it detects failure fan automatically.

The overall architecture of Stelight Instrument BI8201 significantly lowers the system cost by integrating the traditional components of oven and drive/control electronics. The resultant system has a lower cost and smaller footprint, while still being quickly interchangeable, with no need for external interconnection cables.

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Key Benefits

Independent temperature control for each individual drawer.

Well-designed thermal contract.

Support low temperature Burn-in down to 0C.

Support optical power and spectrum real time monitoring.

Support pulse operation down to 50us.

Excellent electrical stress protection network.

Flexible fixture configurations for different product usage.

Compact and easy to use

Integrated solution allows the system to be cost effective for both low and high-quantity use;

Lower cost due to integration of ovens, control electronics,

Flexible uses include burn-in, life-test and qualification;

Standard or tailor-made fixture with full flexibility;

Clear, flexible user interface displaying the status of units under test including module temperature

Programmable alarm conditions and notification via email

Graphical displays of device performance during testing including degradation

Laser control constant current or constant power modes

All module/device parameters may be set drive current, temperature, burn-in time etc.

Full results logged to databases

Data recording to any ODBC compliant database

System Description

Stelight Instrument BI8201 is designed as 6 floors and each floor has 2 drawers. For different TO products, only need to change the burn-in fixture design (below are some pictures for your information).

The good thing is each drawer’s temperature and current/voltage are independently controlled, so each drawer could work independently without affecting each other, this provided very good flexibility for customers.

Burn-in and Test Fixture

DUT is sitting on 10x seats Burn-in fixture. The fixture then will be loaded to burn-in drawer for burn-in, or be loaded to test station for testing. For different DUT we only do some small change for the burn-in fixture which greatly improved the flexibility of the burn-in lines.

Figure 1, Floor Structure

Figure 2, Drawer Design for Pump CoS

Figure 3, Fixture Design for pump CoS

Figure 4, Drawer Design for TO

Figure 5 Fixture design for TO

Figure 6, Drawer Design for VCSEL Array

Figure 7 Fixture design for VCSEL Array

BI8201 in-line power/spectrum monitoring burn-in system

System Capacity
System Capacity	480 channels
Temperature Control
Temp control type	Each drawer independently
Temp control method	TEC + Cooling Water
Temp control range	0°C to 120°C (heatsink)
Temp control resolution	± 0.1°C
Temp control Accuracy	± 1°C for 0°C to 60°C ± 1.5°C for 60°C to 100°C ± 2°C for 100°C to 120°C
Temp control Uniformity	± 1°C for 0°C to 60°C ± 2°C for 60°C to 100°C ± 3°C for 100°C to 120°C
Temp control Stability	± 0.5°C
Temp protection capability	Hardware protection if >130°C
Laser Control
Laser Driver Type	Each channel independently
Driver Current Polarity	Bi-directional is an optional
Driver Current range	6A
Pulse operation mode	Support 100us pulse to CW, Duty cycle 0-100%
Driver Current read back	Included
Driver Current Resolution	0.1% full scale
Driver Current Accuracy	± 1% full scale
Driver Current Stability	± 0.3% full scale
Driver Compliance Voltage	0-9V configurable
Voltage Measure Range	9V
Voltage Measure Accuracy	± 50mV
Voltage Measure Resolution	0.3%
Normal operation Electrical overshoot	<1%
Abnormal operation Electrical overshoot	<1%
Normal operation Electrical downshoot	<1%
Abnormal operation Electrical downshoot	<1%
Event Detection	Loss of power, Loss network, short, open, over temp
Optical Measurement (Optional)
Optical power measure capability	Optional
Optical power measure range	10mW-20mW
Optical power measure resolution	0.1% Full Scale
Optical power measure accuracy	+/-20% Full Scale
Optical power measure stability	+/-2%
Wavelength Range	300-1550nm(based on OSA type)
Burn-in fixture
Device Types Supported	All kinds of CoC/COS/TO
Device positions	Customer design
Heat sink material	Golden-Plated Copper
Electrical contact method	Pogo pin/TO socket/PCB pad direct connection
Probing accuracy	±0.050mm(machining:±0.02+pogopin:±0.03)
General Parameter
Layer quantity	6
Drawer quantity	12
Main frame size	1.01.252.1 m (DWH)
Water chiller	0.811.2m(DWH)
AC Power	220V-380V 50/60Hz, 30A, 3 phase
N2 Purge capability	Optional
Computer Model	Advantech
Operation system	Microsoft Windows 7
Burn-in Software	Microsoft .Net
Software language	C#
Database	SQL
Device connection test tool	Integrated
Burn-in plan configure tool	Integrated
Burn-in data query tool	Integrated

System Stability and Accuracy

Burn-In temperature and bias current stability

With built-in precision monitor sensors & feedback control, Stelight Instrument BI8201 has very stable temperature and Drive Current performance in all burn-in and life-test period. The following diagram show the Temperature Uniformity, Uniformity at 0C is within +/-1C, Uniformity at 80C is within +/-2C, driver current Uniformity is within 0.1%.

Figure 15, Temperature Uniformity Data at 0C is within +/-1C

Figure 16, Temperature Uniformity Data at 80C is within +/-2C

Figure 17, PD Power Monitoring Data, stability within +/-1%

Figure 18, Driver Current for Pump Laser

Figure 19, Forward Voltage for Pump Laser

Stelight Instrument is involved to be a Global Leader on high speed optical communication testing instrument and solution. We provide test & measurement solutions to enable optical component and OEM/ODM/JDM and other system integrators to reach new levels of quality and performance. Stelight Instrument was founded to address the growing need for affordable and functional equipment. Since that time, the company has expanded to create a path to address not only present, but also future requirements. Product specifications and descriptions in this document subject to change without notice.

For the latest version of this document, please visit our website at www.stelight.com.