Easier Bond Finger Solder Mask Openings


If you design wire bond packages, you’re familiar with the need for the bond fingers and rings on the package substrate layers to be exposed through the solder mask layer. If they aren’t, it becomes… rather difficult… to bond the wire to them, after all! We talked about general-purpose bounding shapes a few weeks ago in “A Boundless Bounty of Bounding Shapes”. Bond fingers have a... » read more

3nm: Blurring Lines Between SoCs, PCBs And Packages


Leading-edge chipmakers, foundries and EDA companies are pushing into 3nm and beyond, and they are encountering a long list of challenges that raise questions about whether the entire system needs to be shrunk onto a chip or into a package. For 7nm and 5nm, the problems are well understood. In fact, 5nm appears to be more of an evolution from 7nm than a major shift in direction. But at 3nm, ... » read more

Thermal Challenges In Advanced Packaging


CT Kao, product management director at Cadence, talks with Semiconductor Engineering about why packaging is so complicated, why power and heat vary with different use cases and over time, and why a realistic power map is essential particularly for AI chips, where some circuits are always on.   Interested in more Semiconductor Engineering videos? Sign-up for our YouTube channel here » read more

Week In Review: Design, Low Power


M&A Intel will acquire Barefoot Networks, a maker of programmable Ethernet switch silicon and the P4 networking programming language for data centers. Founded in 2013, the Santa Clara-based company has raised $155.4 million in funding. Terms of the deal were not disclosed, but Intel expects the acquisition to be final in the third quarter of this year. Tools & IP Mentor extended it... » read more

Waiting For Chiplet Interfaces


There aren't many success stories related to chiplets today for a very simple reason—there are few standard interfaces defined for how to connect them. In fact, the only way to use them is to control both sides of the interface with a proprietary interface and protocol. The one exception is the definition of HBM2, which enables large quantities of third-party DRAM to be connected to a logi... » read more

Engineering The Signal For GDDR6


DDR1 through DDR3 had their challenges, but speeds were below one gigabit and signal integrity (SI) challenges were more centered around static timing and running pseudo random binary sequence (PRBS) simulations. Now, with GDDR6, we are working on 16 to 20 gigabits per second (Gbps) signaling and even faster in the near future. As a result, engineering the signal for GDDR6 will require careful ... » read more

GDDR6: Signal Integrity Challenges For Automotive Systems


Signal integrity (SI) is at the forefront of SoC and system designers’ thinking as they plan for upcoming high-speed GDDR6 DRAM and PHY implementations for automotive and advanced driver assistance system (ADAS) applications. Rambus and its partners are closely looking at how GDDR6’s 16 gigabit per second speed at each pin affects signal integrity given the cost and system constraints for a... » read more

EDA, IP Show Strong Growth


EDA and IP revenue increased 6.7% worldwide in Q3 2018 to $2.44 billion, compared to $2.28 billion in the same period in 2017. The growth was fueled by rising investments in startups in AI and 5G, as well as a stampede of new and existing companies targeting automotive electrification and autonomous vehicles. While startup funding ultimately will run out as these new markets mature and cons... » read more

Week In Review: Design, Low Power


Tools & Standards Mentor uncorked a PCB design platform for non-specialist PCB engineers focused on multi-dimensional verification. The Xpedition platform can integrate a range of verification tools within a singular authoring environment, providing automatic model creation, concurrent simulation, cross probing from results, and error reviews to identify problems at the schematic or layout... » read more

8 Checks That Every PCB Designer Needs To Achieve Electrical Sign-Off


Automate electrical design rule checking (DRC) for fast, cost-effective PCB design verification. These eight rules apply regardless of your PCB layout tool or level of expertise. To read more, click here. » read more

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