Tektronix unveiled the 2 Series Mixed Signal Oscilloscope (MSO), reimagining what is possible in test and measurement. The new 2 Series MSO can go seamlessly from the bench to the field and back. It is the first portable oscilloscope to offer benchtop performance and the award-winning Tektronix user interface. Weighing less than 1.8kgs and 38mm thin, the 2 Series MSO can fit into a small backpack.
The easy to use 10.1” touchscreen display makes working on the go easy and fast. It includes optional Arbitrary Function Generator (AFG), pattern generator, voltmeter and frequency counter – and provides up to eight hours of battery power. “This breakthrough product was a direct result of our proven Growth Accelerator innovation process and continued focus on our customers,” said Tami Newcombe, Tektronix President. “Our team worked closely with engineers to deeply understand their unique needs.”
The 2 Series MSO joins other Tektronix oscilloscopes with the user experience also found on the 3, 4, 5, and 6 Series oscilloscopes. This makes it easier for engineers to work effortlessly across these Tektronix products. The colored LED ring lights around the knobs indicate active sources or parameters to adjust or to indicate status. The 2 Series MSO is equipped for advanced debugging in a single instrument, including:
Bandwidths from 70 MHz-500 MHz
Two or four analog channel inputs
16 digital channels (available with future software release)
5 GS/s sample rate
Optional 50 MHz Arbitrary Function Generator
Built-in pattern generator, voltmeter, and frequency counter (features coming soon)
Optional battery provides up to eight hours of power
Unlocks Remote Work and Team Collaboration
Natively integrated software tools allow engineers to collaborate, troubleshoot, and debug designs across time zones. The 2 Series MSO includes TekDrive, a test and measurement data workspace in the cloud where engineers can upload, store, organize, and share any file from a connected device. Users can also perform analysis on a waveform and save it back to the cloud for immediate viewing and feedback from peers.
Total Product Protection Service
To extend and enhance the level of service, Tektronix includes options to extend the warranty from one to three or five years. To provide 2 Series MSO owners protection in the event of accidental damage, Tektronix is offering an introductory promotional price on a Total Product Protection service plan when purchased with the oscilloscope. Purchase the new, light and portable oscilloscope and know it’s protected wherever you go. For more information on the Total Product Protection service plan, visit Tek.com.
By: Andrea Vinci, Technical Marketing Manager at Tektronix/Keithley
The Semiconductor Industry is always searching for new special materials, dielectric solutions and new device geometries for scaling down the device size further and further. Lateral and vertical heterostructures of 2D materials for instance have led to new revolutionary tiny and low power electronics.
Researchers, Scientist and Engineers in the Industry all share a common headache when producing an accurate report of the electrical characteristics of such semiconductor devices, like special NANO-FETs, and even worse when they need to prove they can actually control these parameters in an easy and repeatable way.
It’s the typical problem of electricalcharacterisation in the low current range: the need to identify the attainable device performance under different conditions for low power/low leakage currents MOSFETs.
Measurements are critical since they identify those specific Figures of Merit (FoM) that confirm or not the effective behavior within specific applications. For instance, n-type FET require to evaluate ON and OFF drain currents at different values of source, drain and gate voltages. FoMs can vary across applications, but the way to obtain them is essentially common: something sources a precise and controlled level of voltage or current that varies in a certain way, while voltage and current measurements are also accurately taken to be correlated with each specific variable variation.
The problem is practically solved by using a certain number of Source Measure Units (SMUs), special instruments capable of sourcing current or voltage while measuring both current and voltage. But wherever a practical solution seems readily available, a lot of hidden “details” may cause failures and misleading results. Let’s explore them.
A critical question you should ask yourself
Often, engineers fall into the trap of forgetting to carefully look holistically into their test system. Or better, they clearly see their device, and they clearly see their instruments, but they miss to see what’s in between. For instance, I have seen multiple times users of oscilloscopes forgetting about the fact they were using probes to reach the specific test point to measure on their circuit board.
Those who reminded to consider the effect of the probe on signals, they anyway tended to forget about the probe leads effect on the measurement and problems related to signal coupling. “Come on, does it also really matter?”, they asked. Everything does. Unfortunately. And we need to take this into account.
For DC characterisation applications the risk is similar. Even if the physical probing on the device is essentially left to a complex and expensive probe station system, the SMUs that have to force the voltage and measure the current, they are connected to the probe card by means of cables. Should we consider cables as potentially affecting our measurements results? Regardless of the answer, what matters is that you always ask this question to yourself before proceeding, and more important, make sure that your answer is correct.
Precision measurements in CMOS manufacturing are a typical example where connectivity matters. Connectivity in fact means capacitances to be added to the test system. And since todays MOSFETs are characterised over a wider extended frequency range, any added capacitances effect must be carefully taken into account.
Let’s look first into the connectivity contribution to capacitance; parametric (automated) test equipment generally use triax cable connections, a very typical example of a low noise connection between the Source and Measure Test Units and the Device Under Test. Triax cables are a sort of special coaxial cables that also insulate the part conducting signals by means of an extra outer copper Faraday shield. Even if the Faraday shield reduces the cable’s distributed capacitance, when the total length of the cable becomes significative, also the cables added capacitance can affect your measurements.
Characterizing n-MOSFET transistors
Let’s consider a real use case when a test system has to characterize n-MOSFET transistors for instance. In this application, a test system based on SMUs is used to trace the so called I-V curves, sometimes referred to as the “Output characteristic” or also the “Transfer characteristics”. The gate voltage is programmed to sweep forward and backward (using a SMU, as said) while the drain current is measured (again, using SMUs).
These curves allow to collect useful data to precisely model the activation and deactivation of the transistor conductivity, analyzing when the characteristic reflects linearity or enters a saturation behavior, and how much a self-heating effect can potentially shift these parameters and curves.
When the characterisation refers to modeling the behavior of charge carriers, electrons or holes that jumps between states and modify their mobility according to several conditions, the measurement system connects to the DUT in a four-wire (or remote sense) configuration, and uses triax cables. Looking at the triax cable connection in a four-wire configuration, the total length corresponds to the sum of the Force Hi and the Sense Hi cable lengths.
Based on the capacitance/meter (pf/m) specification of the triax cable, the capacitance of two triax cables having 20m length (10m+10m) connecting the SMUs to the device terminals, can be calculated to be in the range of 2nF for the Guard capacitance and over 6nF for the shield capacitance.
The sensitivity of the SMUs in these cases will be pointless when measuring the transfer characteristic at low current (nanoamps typically) levels, since the capacitance cable loading with cause oscillations. SMUs sensitivity must be combined with the ability to sustain also significant capacitances caused by the cabling load, or the load of any lead that connect the SMUs to the DUT. If this is not the case, the sensitivity will be useless, and produce just noisy oscillating readings.
The ability to identify those conditions when the test capacitance is affecting your measurement is becoming more and more critical. Keithley application engineers are indeed providing valuable consulting in these situations to make sure customers avoid these pitfalls.
Whenever long connecting cables are present in the setup, or switch matrix are between the measurements system and the DUT, or in all cases where the DUT on chuck requires you to enter the range of nanoamps measurements, it’s critical to review the setup and ask for some consulting.
New solutions for the critical ranges
Under these special challenging conditions, it might be necessary to use specific SMUs modules for the measurements. Keithley has released a special version of the SMUs that work in parameter analysis systems like the 4200A-SCS parameter analyzer.
The 4201-SMU Medium Power SMU and 4211-SMU High Power SMU (with the optional 4200-PA Preamp) grant stable low current measurements, even in applications with high test connection capacitance load due to long cabling connections. In fact, these modules can source into and measure a system that is 1,000 times more capacitive than what’s possible today. For example, if the current level is between 1 to 100 pA (picoamp), the new Keithley modules can be stable with as much as 1 µF (microfarad) of load capacitance. In contrast, the maximum load capacitance competitive units can tolerate before measurement stability degrades is just 1,000 pF (picofarad), or 1,000 times worse.
The road towards the optimisation of semiconductors materials for integrated transistors having low contact resistance and special geometries and structures are demanding a continuous improvement of measurements technologies as well. The success of GaN transistors for future power electronics are closely connected to the nanostructures used in their fabrication process. Lower capacitances in the gate width structure raise the problem of considering any other significative capacitances contribution, like the one coming from cabling and connectivity, and overcome problems by improving the SMU ability to handle this for measurements stability.
About the author:
Andrea Vinci is a Technical Marketing Manager at Tektronix, responsible for Keithley Products Portfolio. He got his Electronics Engineering MSc from University of Padova in year 2000, contributing on I.V.I. standard for T&M. He then spent 12 years in technical roles. Since 2011 he joined Tektronix and developed a career in Sales, focusing on Semiconductors and Automotive customers across the EMEA region and specializing in Power Electronics testing solutions. He started a new career chapter joining the Marketing department.
What personal data we collect and why we collect it
We collect anonymous data on visitors in this website for business purposes such as enhancing user experience, digital marketing and search engine optimization.
We collect personal data such as email address and names on various forms - all forms present in this website include consent checkboxes and clear reason for collecting the data: general inquiries on our products, newsletter subscription, professional inquiries job applications. All forms are designed in accordance with GDPR requirements.
When visitors leave comments on the site we collect the data shown in the comments form, and also the visitor’s IP address and browser user agent string to help spam detection.
If you upload images to the website, you should avoid uploading images with embedded location data (EXIF GPS) included. Visitors to the website can download and extract any location data from images on the website.
Contact forms and newsletter
We use Gravity Forms as our platform of choice for all forms present in this website. Forms present in this website have been modified to fit GDPR requirements.
Unless specifically specified and approved by visitor, we do not use the collected data for marketing purposes.
We use Mailchimp to collect email addresses and send periodical marketing materials to our customers.
Handling and management of all email addresses and mailing operations is conducted under GDPR terms and guidelines provided by Mailchimp.
All subscribers are able to change their subscriptions preferences or unsubscribe at any given time.
Techtime has accepted the Data Processing Addendum agreement provided by Mailchimp for all its Mailchimp accounts.
All our lead collection forms have been altered in accordance with GDPR requirements and now include unchecked checkboxes in order to accept the explicit consent of the user prior to form submission.
If you leave a comment on our site you may opt-in to saving your name, email address and website in cookies. These are for your convenience so that you do not have to fill in your details again when you leave another comment. These cookies will last for one year.
If you have an account and you log in to this site, we will set a temporary cookie to determine if your browser accepts cookies. This cookie contains no personal data and is discarded when you close your browser.
When you log in, we will also set up several cookies to save your login information and your screen display choices. Login cookies last for two days, and screen options cookies last for a year. If you select "Remember Me", your login will persist for two weeks. If you log out of your account, the login cookies will be removed.
If you edit or publish an article, an additional cookie will be saved in your browser. This cookie includes no personal data and simply indicates the post ID of the article you just edited. It expires after 1 day.
Embedded content from other websites
Articles on this site may include embedded content (e.g. videos, images, articles, etc.). Embedded content from other websites behaves in the exact same way as if the visitor has visited the other website.
We use Google Analytics regularly for monitoring user behavior and traffic sources and utilize the gathered information for enhancing user experience and for business purposes.
The use of Google Analytics in done according to GDPR terms and guidelines provided by Google.
Legal Entity: Techtime.
Primary Contact (a.k.a. "Notification Email Address"): firstname.lastname@example.org - this email is designated for receiving notices under the Google Ads Data Processing Terms.
Who we share your data with
We use various cloud platforms and third party providers for the purpose of operating this website.
We do not share or sell your data for any commercial purpose other than specified above.
We use the following processors for the operating this website and executing related digital marketing campaigns:
WP Engine - Hosting Provider
Cloudflare - Cloud based security and web performance processor.
Google Cloud Platform - data centers provider for WP Engine
Sucuri - Website security provider
Mailchimp - Newsletter service provider
Google Analytics, Adwords, Webmasters
Facebook - We use Facebook for advertising and place tracking code on our website for enhancing digital marketing campaigns (i.e - Facebook Pixel).
Planwize Ltd - Digital Marketing Agency.
How long we retain your data
If you leave a comment, the comment and its metadata are retained indefinitely. This is so we can recognize and approve any follow-up comments automatically instead of holding them in a moderation queue.
For users that register on our website (if any), we also store the personal information they provide in their user profile. All users can see, edit, or delete their personal information at any time (except they cannot change their username). Website administrators can also see and edit that information.
What rights you have over your data
If you have an account on this site, or have left comments, you can request to receive an exported file of the personal data we hold about you, including any data you have provided to us. You can also request that we anonymize or erase any personal data we hold about you. This does not include any data we are obliged to keep for administrative, legal, or security purposes.
Request for Receiving Data Associated with One’s Email Address
Users may request to receive access to all related information submitted to this website for their review.
In accordance with GDPR compliance, user may further request the anonymization of such data.
In order to request access for all data associated with a given email address, users may submit the request here. Users then receive an email with a link to a page with all related information.
The link is valid for 24 hours. Users may submit additional request for the same email address once in every 24 hours.
A request for anonymization should be sent separately: User may select the data he or she wishes the site owner to anonymize so it cannot be linked to his or her email address any longer. An email confirmation will be sent once linked data has been successfully anonymized.
Where we send your data
Visitor comments may be checked through an automated spam detection service. All our processors and third party providers comply with GDPR requirements and apply privacy by design and necessary measure to ensure that personal data is being processed and handled in accordance with requirements. The list of our third party service providers and processors is listed above.
For all privacy-specific concerns inquiries, you may contact us at email@example.com
How we protect your data
We use rigorous practices in order to protect our website and data collected, as well as world class cloud and hosting providers.
Communication between visitor and the server is encrypted using SSL.
The site is protected with web application firewall and is undergoing daily security scans, regular software updates by a dedicated team in order to minimize the risk of data breach.
What data breach procedures we have in place
Once a data breach is detected, our providers execute a dedicated standard operational procedure in order to assess the scope and potential damage, provide immediate remedy, patch any potential security holes and notify users who may be affected by the breach.
We may contact affected users with one or more form of communication within 72 hours and provide the needed information as to the scope of the data breach and actions taken.
What third parties we receive data from
We do not receive data from third parties for our marketing campaigns.
What automated decision making and/or profiling we do with user data
We may apply remarketing/retargeting methods while conducting online advertising using Google Facebook and the likes.
The above is conducted by applying various tracking codes into our website in order to track and retarget users based on
By visiting and using this website you are hereby provide your consent for the use of the above means and methods.