Power/Performance Bits: Sept. 9


Smaller, cheaper integrated photonics Researchers from the University of California Santa Barbara, California Institute of Technology (Caltech), and Ecole Polytechnique Fédérale de Lausanne (EPFL) developed a way to integrate an optical frequency comb on a silicon photonic chip. Optical frequency combs are collections of equally spaced frequencies of laser light (so called because when pl... » 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

Power/Performance Bits: July 28


Programmable photonics Researchers from the University of Southampton developed a method for making programmable  integrated switching units on a silicon photonics chip. By using a generic optical circuit that can be fabricated in bulk then later programmed for specific applications, the team hopes to reduce production costs. "Silicon photonics is capable of integrating optical devices and... » 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

Power/Performance Bits: July 6


Configurable photonics Researchers from the University of Southampton developed a configurable/one-time programmable silicon photonic circuit that could reduce production costs by allowing a generic optical circuit to be fabricated in bulk and then later programmed for specific applications such as communications systems, LIDAR circuits or computing applications. Additionally, once programmed,... » read more

Making Silicon Photonics Chips More Reliable


Silicon photonics has the ability to dramatically improve on-die and chip-to-chip communication within a package at extremely low power, but ensuring that signal integrity remains consistent over time isn't so simple. While this technology has been used commercially for at least the past decade, it never has achieved mainstream status. That's mostly due to the fact that Moore's Law scaling h... » read more

Making Chips At 3nm And Beyond


Select foundries are beginning to ramp up their new 5nm processes with 3nm in R&D. The big question is what comes after that. Work is well underway for the 2nm node and beyond, but there are numerous challenges as well as some uncertainty on the horizon. There already are signs that the foundries have pushed out their 3nm production schedules by a few months due to various technical issu... » read more

Startup Funding: March 2020


Dedicated AI hardware, quantum computing, and avionics startups shined in March. Here's a look at seventeen startups, which raised a collective $525M. The avionics sector soared thanks to Lilium and its electric vertical takeoff jet. Quantum computing was another hot area, with three companies bringing in ~$88M together. Plus, chip design management, two companies developing AR glasses, and how... » read more

Physical Verification For Photonics Integrated Circuits


Silicon photonics is a promising solution for the explosive growth of data volume and network traffic in computing and communications. Silicon photonics integrates photonics applications on a silicon wafer, utilizing mainstream Si-based technology. Photonics integrated circuits (PIC) offer several advantages over traditional integrated circuits: faster data transfer speeds, lower power consumpt... » read more

Week In Review: Manufacturing, Test


Market research The coronavirus is having a major impact on the semiconductor, smartphone and related markets. For example, global fab equipment spending promises to rebound from its 2019 downturn and see a modest recovery this year, according to a report from SEMI. But the coronavirus (COVID-19) outbreak has eroded fab equipment spending in China and elsewhere in 2020, according to the rep... » read more

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