Getting Smarter About Tool Maintenance


Chipmakers have begun to shift to predictive maintenance for process tools, but the hefty investment in analytics and engineering efforts means it will take some time for smart maintenance to become a widespread practice. Semiconductor manufacturers need to maintain a diverse set of equipment to process the flow of wafers, dies, packaged parts, and boards running through factories. OSAT and ... » read more

Revising 5G RF Calibration Procedures For RF IC Production Testing


Modern radio frequency (RF) components introduce many challenges to outsourced semiconductor assembly and test (OSAT) suppliers whose objective is to ensure products are assembled and tested to meet the product test specifications. The growing advancement and demand for RF products for cellphones, navigational instruments, global positioning systems, Wi-Fi, receiver/transmitter (Rx/Tx) componen... » read more

Test Challenges Mount As Demands For Reliability Increase


An emphasis of improving semiconductor quality is beginning to spread well beyond just data centers and automotive applications, where ICs play a role in mission- and safety-critical applications. But this focus on improved reliability is ratcheting up pressure throughout the test community, from lab to fab and into the field, in products where transistor density continues to grow — and wh... » read more

Managing Thermal-Induced Stress In Chips


At advanced nodes and in the most advanced packages, physics is no one's friend. Escalating density, smaller features, and thinner dies make it more difficult to dissipate heat, and they increase mechanical stress. On the flip side, thinner dielectrics and tighter spaces make it more difficult to insulate and protect against that heat, and in conjunction with those smaller features and higher d... » read more

How AiP/AoP Technology Helps Enable 5G And More


For 5G smartphones and other millimeter wave (mmWave) applications, antenna integration off the board and into the package, simplifies the design challenges endemic to high-frequency devices. These challenges include signal loss, signal integrity, and power supply limitation. Antenna in Package (AiP) and Antenna on Package (AoP) constructions provide the required form, fit and function for high... » read more

Bump Reliability is Challenged By Latent Defects


Thermal stress is a well-known problem in advanced packaging, along with the challenges of mechanical stress. Both are exacerbated by heterogenous integration, which often requires mingling materials with incompatible coefficients of thermal expansion (CTE). Effects are already showing up and will likely only get worse as package densities increase beyond 1,000 bumps per chip. “You comb... » read more

Chip Industry’s Earnings Roundup


Editor's Note: Updated throughout February 2023 for additional earnings releases. Many companies reported revenue growth in the most recent quarter, but the latest round of chip industry earnings releases reflected some major themes: Demand for consumer electronics softened due to inflation, rising interest rates, and post-pandemic market saturation, creating a slump in the memory chip ... » read more

An OSAT Perspective On Semiconductor Market Trends


For the semiconductor industry, 2022 was a very interesting year. On one hand, it witnessed shortages in the supply chain. On the other hand, the macro-economic situation turned and demand for several consumer and computing devices plummeted. A trade war with China and ensuing localization of supply chain with passage of CHIPS act took shape in 2022. The auto industry is still recovering from t... » read more

3D Sensing Package Solutions


By Chiung Lee, Weilung Lu, and Adrian Arcedera 3D sensing technology is rapidly being adopted in a variety of growing markets. End-product applications include smartphones, tablets, augmented/virtual reality products, robot vacuum cleaners, industry inspection machines, and automotive vehicles. As shown in figure 1, Yole Développement expects the 3D imaging and sensing market to expand from... » read more

The March Toward Chiplets


The days of monolithic chips developed at the most advanced process nodes are rapidly dwindling. Nearly everyone working at the leading edge of design is looking toward some type of advanced packaging using discrete heterogeneous components. The challenge now is how to shift the whole chip industry into this disaggregated model. It's going to take time, effort, as well as a substantial reali... » read more

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