Author's Latest Posts


Characterization Of Micro-Bumps For 3DIC Wafer Acceptance Tests


The strong market needs to embed multiple functionalities from different semiconductor processing technologies into a single system continue to drive demands for more advanced 3DIC packaging technologies. Dimensions of copper pillar micro-bumps are consistently reduced in every new technology node to facilitate the 3D stacking of multiple dies so that overall system performance can be improved.... » read more

Advanced mm-Wave And Terahertz Measurements With Cascade Probe Stations


The strong market needs to embed multiple functionalities from different semiconductor processing technologies into a single system continue to drive demands for more advanced 3DIC packaging technologies. Dimensions of copper pillar micro-bumps are consistently reduced in every new technology node to facilitate the 3D stacking of multiple dies so that overall system performance can be improved.... » read more

Automotive IC Production Wafer Test In A Zero-Defect World


By Amy Leong, FormFactor. Innovations in automotive semiconductor ICs post a high bar for wafer test. FormFactor’s Chief Marketing Officer, Amy Leong, provides insights into the challenges associated with automotive IC production wafer testing amid the requirement for zero-defects. Click here to continue reading. » read more

New Test Methods For 5G Wafer High-Volume Production


In order to provide the chips required for this change in the landscape, there will be a large number of changing requirements in wafer test that come out of these architectural requirements. Form Factor partnered with Intel to investigate these changes, and tested one such example of a new test methodology. In a joint collaboration with Intel to develop a test methodology for their 5G RF-So... » read more

Silicon Photonics: Automated Wafer-Level Probing And Silicon Photonics


As chip designers are pressed for ever-increasing data rates, the use of wavelength-division multiplexing (WDM) with infrared photonic signals as a data transfer medium is increasingly finding its way into CMOS silicon-based devices. Termed “silicon photonics” (SiPh), this technology is not only being used to displace traditional electrical interconnects, but also for a broad range of appli... » read more

Advanced Packaging, Heterogeneous Integration And Test


Major products rely on advanced packaging to reach the market; a groundswell of die-integration technologies are revolutionizing packaging, assembly, and test. At this exciting time in the industry, open engagement between customers and suppliers has never been more important for the test community. Click here to read more. » read more

Test Setup Optimization And Automation For Accurate Silicon Photonics Wafer Acceptance Production Tests


Implementing energy-efficient optical transceiver modules with silicon photonics (SiPh) and 3DIC technologies will help alleviate the increasing energy consumption for hyperscale data centers. To facilitate effective 3DIC heterogenous integration of these photonics integrated circuits for optical transceivers, high precision, repeatable and reliable SiPh wafer acceptance tests are essential and... » read more

The Story Behind Advanced Packaging, Heterogeneous Integration and Test


The introduction of AMD’S FIJI chip a few years ago marked an important technology turning point for the semiconductor industry. This revolutionary graphics product delivered capability and innovation by relying on the first commercial example of 2.5D heterogenous integration, featuring a GPU assembled with High-Bandwidth-Memory (HBM) using Through-Silicon-Via (TSV) interconnect and interpose... » read more

Improving Wafer-Level S-Parameters Measurement Accuracy And Stability With Probe-Tip Power Calibration Up To 110 GHz For 5G Applications


Author: Choon Beng Sia, FormFactor Inc., Singapore Demands for mission critical wireless services such as autonomous driving and telehealth require higher data transfer rates and lower latencies. Such applications are now driving the use of radio frequencies (RF) at 28, 38, 60 and 73 GHz for the emerging 5G mobile communication systems. Waferlevel RF measurements of devices or circuits for 5... » read more