T-2500 Product Family Details

T-2500 products are ideal for temperature cycling per MIL STD-883C for thermal stressing of semiconductor devices. The systems are produced with a variety of options for the thermal head, support arm and cooling mechanisms. The core product in this family is the T-2500SE which has a temperature range of -90C to +225C and a rapid transition time of four seconds (+125C to -55C).

System Variations

Systems, with various physical and performance characteristics are available to meet your specific test requirements. In addition to our standard systems, modified units with extreme cooling, air flow capabilities and arm styles are available.

Table of T-2500 Product Family Key Features:

Product	Temperature Range	Key Features	Benefits/Application
T-2500BE	-80C to +200C	1.5 meter Basic Output Hose with single heater in chassis.	Appropriate for use with custom thermal fixtures.
T-2500E	-80C to +225C	Single-heater test head with motorized up/down boom. Manual in/out arm positioning.	Full-featured system that is economically priced.
T-2500E/300	-80C to +300C	Extends temperature range to +300C	For testing of devices used in higher temperature environments such as automotive or geothermal applications.
T-2500EA	-80C to +225C	Single-heater test head with simplified manual arm.	Unique arm that enables closer proximity of the PTFS to the tester, thereby conserving floor space.
T-2500HFB	-90C to +200C	1.5 meter Basic Output Hose with single heater in chassis.	For high-flow test requirements using a basic output hose. Provides 1200 SCFH (20 CFM) at -90C.
T-2500HFE	-90C to +225C	High air flow capability (20 CFM) with motorized arm.	For high-flow test requirements. Provides 1200 SCFH (20 CFM) at -90C.
T-2500IX	-100C to +225C	Single heater test head and arm optimized for colder output.	Extends the cold output to -100C without using LN2
T-2500IX/M	-130C to +225C	Dual-mode system capable of using LN2 for enhanced cold operation.	Useful for large or high-power dissipating devices. Provides continuous -130C when using LN2. (-90C to +225C when not using LN2.)
T-2500SE	-90C to +225C	Dual heater thermal head with fully-motorized arm and boom assembly.	Full-featured system. Provides the most sophisticated temperature testing capability available.
T-2500SEA	-90C to +225C	Dual heater thermal head with simplified manual arm.	Full-featured system with unique arm that enables closer proximity to the tester. Lower cold output of -90C.

Intelligent Touch-Screen Interface

An intelligently designed, multi-color touch-screen makes the system intuitive and easy to set up and operate. On-screen graphics present the temperature set-point, air temperature, DUT (device under test) temperature, airflow rate, and current system status. Menus enable the operator to change parameters by touching the desired selections. In addition, a password protection feature makes it possible for the test engineer to determine operator accessibility to essential software segments.

Test data can be captured and displayed in a scrolling graph screen and stored for later analysis. Examples of the Manual Control Screen and Data Graph screen are shown below:

Manual Control Screen

Scrolling Graph Screen

Sophisticated Temperature Cycling

Complex temperature profiles are easily set up on the touch screen. Temperature profiles can be saved and recalled in system memory for later use or exported and saved to external memory devices. Data entered can be as simple as two temperatures and soak times, or as complex as a 99-step cycle - each with a unique temperature, soak time, or ramp rate. The images below display the Profile Setup Screen and the Numeric Input Keypad.

Profile Setup Screen

Data Entry Keypad

Precise Temperature Control

A patented, proprietary temperature control algorithm provides the most accelerated and precise temperature control of any available temperature forcing system. With the system's high airflow - and cold boost feature, test temperatures are achieved efficiently and economically; making the T-2500 product series the optimal system(s) for testing semiconductor packages, hybrids, modules, MCMs, PCBs, and small subassemblies. Examples of typical semiconductor packages that the system can accommodate include PLCC, DIP, LCC, PGA, SOP, QFP, and others. Custom thermal fixtures are available to provide a controlled temperature environment for testing larger modules.

The case temperature of the DUT can be determined with the use of the DUT sensor (K-type or T-type). This feature makes it possible to control the temperature of the DUT to within ±1C of the desired temperature set-point. In addition, a self-learn feature, which accommodates the mass of the device, assures that the DUT stabilizes at temperature quickly.

Typical Device Temperature Response:

The graph below displays real-time data captured from a system with a profile set up for +25C to -55C and +125C using a five-second soak time in DUT temperature control mode using the cold boost feature.

Device Temperature Response

(Key: red = set point, green = air temp., yellow = actual DUT temp.)

Full ATE Compatibility

Remote operation of the system is accomplished with RS-232C and IEEE-488.2 interfaces. A library of remote communication commands enable easy configuration, monitoring, and actuation of critical setup and operating parameter such as temperature set points and soak times from any remote computer or terminal. A standard ATE interface providing start test, end of test, and class signals is provided to assure full ATE compatibility which includes the ability to communicate with all main ATE and Rack and Stack test systems.

Easy PM and Calibration

The products in the T-2500 family are field proven for durability, performance and reliability. Maximum up time is achieved with a modular design that promotes quick and easy implementation of preventive maintenance activities. Calibration of the system is facilitated by a series of software screens that guide you through the procedure in a systematic manner. In addition, diagnostics screens that report system malfunctions in an easy to understand format assist with servicing of the system. You can purchase the tools used for calibration directly from Thermonics. Navigate to Accessories from the side bar menu.

Thermal/Device Integration

In most cases, the temperature controlled air is delivered to the device via a nozzle in the thermal test head. The exception is when a basic output hose is used. The thermal head has a pneumatic component that enables it to easily lift and settle over the device in a repeatable manner. Integration of the air to the device is accomplished with thermal caps (boots) that form a small enclosure around the DUT. Surrounding the nozzle area is a shroud, which forms a sealed, transparent enclosure.

Heated purge air is provided to keep this test interface free of frost or moisture when operating at cold temperatures. Ambient purge air prevents overheating of test electronics when testing at hot temperatures.

An interface kit is delivered as a standard component of these systems and includes a set of five thermal caps and a shroud assembly. Alternate sizes and type of thermal caps (i.e., conductive) and shrouds can be ordered. Navigate to Accessories using the side menu.

Thermal Boots

Shrouds

Arm Options

Three types of structural components for supporting the thermal test head have been implemented. These arm options provide a strong support for adapting the thermal test head to the DUT. The positive action, combined with quick adjustability enable the head to be positioned in a wide range of horizontal and vertical positions. A basic output hose is also available.

The arm types include:

1. Semi-automated in which the in/out direction is manual and the up/down motion is automated.
   
   
2. Fully-automated where in/out and up/down motion are automated. The combination of electro-mechanical and pneumatic action of this assembly ensures precise, stable and repeatable placement of the thermal fixture over the DUT.
   
   
3. Manual arm where all positioning is set by the operator. This type of arm enables closer proximity of the PTFS to the tester.
   
   
4. Basic output hose. A 1.5 meter hose - ideal for use with Custom Thermal Fixtures. Navigate to Custom Fixtures using the side menu.

The choice of arm style or hose is determined by the requirements of the test device, the location and physical proximity of the auto-tester and any fixture-related issues. Images of the arm types are shown below:

The semi/fully automated arm	The manual arm
The basic output hose connected to a small fixture.