Adding CDM Protection to a Real World LNA Test Case

Adding CDM Protection to a Real World LNA Test Case
by Tom Simon on 08-06-2019 at 6:00 am

In RF designs Low Noise Amplifiers (LNA) play a critical role in system operation. They simultaneously need to be extremely sensitive and noise free, yet also must be able to withstand strong signal input without distortion. LNA designers often struggle to meet device performance specifications. Their task is further complicated… Read More


HBM or CDM ESD Verification – You Need Both

HBM or CDM ESD Verification – You Need Both
by Tom Simon on 07-11-2019 at 11:00 am

In the realm of ESD protection, Charged Device Model (CDM) is becoming the biggest challenge. Of course, Human Body Model (HBM) is still essential, and needs to be used when verifying chips. However, a number of factors are raising the potential losses that CDM events can cause relative to HBM. These factors fall into two categories:… Read More


Upcoming HBM and CDM ESD Verification Seminar in Taiwan

Upcoming HBM and CDM ESD Verification Seminar in Taiwan
by Tom Simon on 06-25-2019 at 10:00 am

The electrostatic discharge that occurs in lightening, as seen in the picture below, can cause serious damage to the objects on the ground. Over centuries mankind has devised ways, such as lighting rods and arresters, to deflect the energy so it is dissipated harmlessly. The same drama plays out on modern semiconductors due to … Read More


A Practical Approach to Modeling ESD Protection Devices for Circuit Simulation

A Practical Approach to Modeling ESD Protection Devices for Circuit Simulation
by Tom Simon on 06-03-2019 at 8:00 am

Lurking inside of every Mosfet is a parasitic bipolar junction transistor (BJT). Of course, in normal circuit operation the BJT does not play a role in the device operation. Accordingly, SPICE models for Mosfets do not behave well when the BJT is triggered. However, these models work just fine for most purposes. The one important… Read More


Full-chip Multi-domain ESD Verification

Full-chip Multi-domain ESD Verification
by Paul McLellan on 03-27-2015 at 7:00 am

ESD stands for electro-static discharge and deals with the fact that chips have to survive in an electrically hostile environment: people, testers, assembly equipment, shipping tubes. All of these can carry electric charge that has the “potential” (ho-ho) to damage the chip irreversibly. Historically this was… Read More


SoCs More Vulnerable to ESD at Lower Nodes

SoCs More Vulnerable to ESD at Lower Nodes
by Pawan Fangaria on 03-11-2015 at 1:00 pm

Electro Static Discharge (ESD) has been a major cause of failures in electronic devices. As the electronic devices have moved towards high density SoCs accommodating ever increasing number of gates at lower process nodes, their vulnerability to ESD effects has only increased. Among the reasons for ESD failures in SoCs, device… Read More


Know All About ESD and Save Your Chips & Systems

Know All About ESD and Save Your Chips & Systems
by Pawan Fangaria on 08-24-2014 at 7:30 pm

In this age of electronics, especially with so many different types of human held devices and more upcoming wearable devices, it’s utmost important to protect the massive circuitry inside those tiny parts in the devices from ESD related failures. The protection needs to happen at all stages – cells inside the chips, package… Read More


Full Chip ESD Sign-off – Necessary

Full Chip ESD Sign-off – Necessary
by Pawan Fangaria on 11-13-2013 at 7:00 pm

As Moore’s law keeps going, semiconductor design density on a chip keeps increasing. The real concern today is that the shrinkage in technology node has rendered the small wire geometry and gate oxide thickness (although fine in all other perspectives) extremely vulnerable to ESD (Electrostatic Discharge) effects. More than… Read More