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Picking The Right Location For Probe Stations


High performance flicker noise or phase noise TestCells can be degraded by installing them in a bad location. And just like developing a high-performance system, finding a good location can be a time consuming and difficult task for the typical lab technician that is tasked with setting up the new prober. To do it right requires specialized measurement equipment and tools such as accelerometers... » read more

High Throughput Noise Measurements


Flicker noise and random telegraph noise (RTN) testing can take a long time, especially when measuring down to frequencies of 1 Hz or below. Sweep times up to 30 min at a single temperature are common. And standard data collection for device models requires DUT data at multiple temperatures on small pads. To lower Cost of Test (CoT), and significantly increase on-wafer test throughput, a... » read more

Analog Migration Equals Redesign


Analog design has never been easy. Engineers can spend their entire careers focused just on phase-locked loops (PLLs), because to get them right the functionality of circuits need to be understood in depth, including how they respond across different process corners and different manufacturing processes. In the finFET era, those challenges have only intensified for analog circuits. Reuse, fo... » read more

Noise Abatement


[getkc id="285" kc_name="Noise"] is a fact of life. Almost everything we do creates noise as a by-product and quite often what is a signal to one party is noise to another. Noise cannot be eliminated. It must be managed. But is noise becoming a larger issue in chips as the technology nodes get smaller and packaging becomes more complex? For some, the answer is a very strong yes, while for ot... » read more

Noise Killed My Chip


In the past, noise was considered an annoyance, especially for analog circuitry. But today chips are actually failing because insufficient analysis was performed. Noise types that used to be second-order effects are becoming primary factors that have to be considered. This is happening at the same time that noise margins are getting smaller, both in the amplitude and temporal dimensions. It ... » read more