Home > Press > Keithley Adds Low Current Capability to SourceMeter® Line for Fast, Compact, and Economical Parametric Testing
Keithley Instruments, Inc. (NYSE:KEI), a leader in solutions for emerging measurement needs, announces two new additions to its Series 2600 SourceMeter® Instruments to create the industry's most advanced and cost effective solution for semiconductor parametric analysis and testing. The Models 2635 and 2636 represent a new and unique way of doing parametric analysis at resolutions as fine as 1fa (10-15 amp), which is often required for many semiconductor, optoelectronic, and nanotechnology devices. Moreover, their instrument-based, multi-channel architecture results in a 50 percent lower cost than typical mainframe-based source-measure solutions. With their Test Script Processor (TSP™) and TSP-Link™ intercommunications bus, these new instruments enable engineers to quickly create fast test systems that are ideal for research, characterization, wafer sort, reliability, production monitoring, and a multitude of other test applications. For more information about the Series 2600 SourceMeter Instruments, visit http://www.keithley.com/pr/075 . For High Resolution Image: http://www.ggcomm.com/KEI/2635_2636.JPG
Keithley Adds Low Current Capability to SourceMeter® Line for Fast, Compact, and Economical Parametric Testing
Cleveland, OH | Posted on September 13th, 2007
The Models 2635 and 2636 provide cost-effective DC and pulse testing from femtoamps and microvolts up to 200V/1.5A. They operate with or without a PC, providing test speeds up to four times faster than typical mainframe-based source-measure solutions. Moreover, each includes a PC-like microprocessor to enable easy programming and independent execution of test programs (scripts) ranging from the simple to complex, including sourcing, measuring, test sequence flow control, and decisions with conditional program branching. Since they can be easily integrated with other instruments in automated systems, they will be very attractive to component manufacturers and semiconductor fabricators for wafer level testing and packaged device testing. At the same time, their low cost makes them attractive to researchers and academics in a wide variety of disciplines that require fast and easy I-V characterization of devices and materials.
Easy Scalability for Lowest Cost of Ownership
The Models 2635 and 2636 enable users to significantly reduce their cost of test for low and medium pin count devices or multiple devices and material samples. They operate as five precision instruments in a single box: SMU (source-measure unit), DMM (digital multimeter), bias source, low frequency pulse generator, and arbitrary waveform generator. These functions are controlled by TSP, which enables fully programmable sequences to be downloaded and executed within the instrument. This eliminates communications and PC overhead for critical throughput gains, while allowing complete flexibility in controlling and adapting to different test situations.
In addition to TSP, Keithley's TSP-Link master/slave connection provides a high-speed, low-latency interface to other TSP-based instruments, enabling simple multi-box and multi-instrument software control. A major benefit is easy scalability of Series 2600 test systems according to present and future needs. Multiple single-channel (Model 2635) units and dual-channel (Model 2636) units can be integrated seamlessly without a host mainframe. This mainframeless scalability allows system sizes up to 32 channels per GPIB address, while minimizing cost, rack space, and time required when adding future channels. By using selected products in the Series 2600, users can standardize on two or three SMU models to cover tests up to 10A pulse or 3A DC in a wide range of applications. The SMUs can then be re-purposed by simply changing the test scripts they execute.
Shorter Test Times
All of Keithley's TSP-based systems are capable of storing and running thousands of lines of code for predefined device tests that include limit comparisons, pass/fail decisions, parts binning, etc., and they all work with or without a PC controller during test execution. Furthermore, their digital I/O can directly control probers, handlers, and other instruments, while TSP-Link allows users to execute high-speed automated tests across multiple channels and instruments without GPIB traffic. This results in test time reductions as large as 10X compared to older sequencing instruments; 2X to 4X test time reductions are common in component testing.
When the Models 2635 and 2636 are combined with Keithley's new Series 3700 System Switch/Multimeter instruments, which also incorporate TSP and TSP-Link, an even broader range of high-speed applications can be served. Together, these two product series provide the fundamental building blocks that enable tightly integrated high-performance switching and multi-channel I-V measurements. Test engineers can use them to easily create low-cost ATE systems optimized for high throughput in applications such as semiconductor stress testing and functional packaged device tests.
Easy System Development
Historically, it has been a challenge to develop multi-instrument characterization or ATE systems for basic R&D and high-speed production testing. Keithley solves this problem with two free software tools that greatly simplify systemization of the Series 2600 SourceMeter Instruments. For R&D and curve tracing applications, Keithley's LabTracer™ 2.0 software controls up to eight SourceMeter Instrument channels to perform device characterization with no programming whatsoever. This software allows the user to fully configure each channel, run device parameter tests, and plot test data - simply and easily.
For high-speed production applications, the Test Script Processor is programmed with an uncomplicated BASIC-style programming language that runs in real time on the instrument. The intuitive, easy-to-use interface is compatible with all the popular programming languages. Keithley provides built-in test scripts for sweeping, pulsing, waveform generation, and common component tests. A number of test scripts are included in the instrument, while others can be downloaded at no charge from http://www.keithley.com/. These pre-written factory test scripts can be used as supplied or easily customized, allowing production users to get their systems up and running faster than ever.
Users can develop custom test scripts in other ways, including a free programming tool called Test Script Builder that helps users create, modify, debug, and store TSP scripts using its simple command language. The user's scripts can be downloaded from the PC to the master SourceMeter Instrument and saved in its non-volatile memory. Sixteen megabytes of total storage allows up to 50,000 lines of TSP code and more than 100,000 readings. Studies have shown that by using TSP and its associated software, users can cut system development time by 50 to 75 percent compared to previous generations of test sequencing instruments.
Keithley can also deliver the advantages of Series 2600 instruments within turnkey integrated test systems driven by its Automated Characterization Suite (ACS). Series 2600 instruments enable scalable source-measure channel counts and high-speed testing for a variety of semiconductor test applications including wafer level reliability, on-wafer parametric die sort, and automated characterization. For example, measurements requiring unprecedented measurement speeds such as on-the-fly NBTI can be made sequentially or in parallel with test plans at the device, wafer, or cassette level. The flexibility and user-friendliness of ACS enables full control of the system instruments, provides a powerful wafer description utility, allows semiautomatic and fully automatic prober control, permits test plan automation, and gives in-depth results analysis. ACS takes advantage of the Series 2600 flexibility, resulting in automated systems that only Keithley can deliver.
Price and Availability. Pricing for the single-channel Model 2635 starts at $8,495.00 (US); the dual-channel Model 2636 pricing starts at $13,995.00 (US). Availability is about six weeks ARO, effective immediately.
For More Information
For information on Keithley's Series 2600 System SourceMeter Instruments, visit http://www.keithley.com/pr/075, or contact the company at:
Address: Keithley Instruments, Inc.
Cleveland, OH 44139-1891
About Keithley Instruments, Inc.
With more than 60 years of measurement expertise, Keithley Instruments has become a world leader in advanced electrical test instruments and systems from DC to RF (radio frequency). Our products solve emerging measurement needs in production testing, process monitoring, product development, and research. Our customers are scientists and engineers in the worldwide electronics industry involved with advanced materials research, semiconductor device development and fabrication, and the production of end products such as portable wireless devices. The value we provide them is a combination of precision measurement technology and a rich understanding of their applications to improve the quality of their products and reduce their cost of test.
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Keithley Instruments, Inc.
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