What Happened To GaN And SiC?


About five years ago, some chipmakers claimed that traditional silicon-based power MOSFETs had hit the wall, prompting the need for a new power transistor technology. At the time, some thought that two wide-bandgap technologies—gallium nitride (GaN) on silicon and silicon carbide (SiC) MOSFETs—would displace the ubiquitous power MOSFET. In addition, GaN and SiC were supposed to pose a t... » read more

Searching For The Next Power Transistor


For decades, the industry has relied on various power semiconductors to control and convert electrical power in an efficient manner. Power semis are ubiquitous, as they are found in adapters, appliances, cars, elevators, switching power supplies, power grids and other systems. But today’s silicon-based power semiconductor transistor technologies, such as IGBTs, MOSFETs and thyristors, are ... » read more

The Week In Review: Manufacturing


Intel announced two new technologies for foundry customers. One technology, dubbed Embedded Multi-die Interconnect Bridge (EMIB), is available to 14nm foundry customers. Instead of an expensive silicon interposer with TSVs, a small silicon bridge chip is embedded in the package, enabling high density die-to-die connections only where needed. EMIB eliminates the need for TSVs and specialized int... » read more

How To Lower LED Costs


The LED market remains hot, particularly in the solid-state lighting segment. In fact, solid-state lighting continues to expand amid a precipitous drop in LED prices. And LEDs are expanding into new fronts, such as automotive and intelligent lighting. The LED boom hasn’t been fun for all parties, however. Amid pressure to reduce their tool costs, LED equipment makers are still in the mids... » read more

Putting Energy In Perspective


The resurgent interest in 2.5D stacked die, the introduction of ultra-low-power memory and the relentless focus on low power for the Internet of Things are rather predictable progressions to engineers working in the semiconductor industry. What’s less obvious is how these changes are filtering out into the rest of the market and where it needs to go next. While many people have been talkin... » read more

LED Firms Mull New Wafer Sizes And Materials


By Mark LaPedus Seeking to reduce the cost of solid-state lighting and related applications, LED manufacturers are taking a page from the IC industry: They are looking at larger wafer sizes and new materials in the fab. Today, the state-of-the-art LED fab is a 150mm (6-inch) facility, but a large percentage of these plants are still using 50mm (2-inch) substrates. The vast majority of LED s... » read more

Newer posts →