Press Room

2003 / 04 / 16

ASE qualifies wire-bond and flip-chip assemblies for ICs using TSMC’s all-copper, 0.13-micron low-K

TAIPEI, Taiwan, April 16th, 2003 – Advanced Semiconductor Engineering Incorporated (ASE, TAIEX: 2311, NYSE: ASX), one of the world’s largest semiconductor packaging and testing companies, announced that it has worked closely with Taiwan Semiconductor Manufacturing Company (TSMC, NYSE: TSM) to successfully qualify ASE’s wire bond BGA and flip chip BGA for use with TSMC’s all-copper, 0.13-micron low-k (k=2.9) dielectric process technology.

The important functions of chip performance are high speed and low power consumption. The lower the dielectric constant (k) of the insulating medium of chip wires, the faster the electrical signal speed and the lower the power consumption. Replacing chip wires traditionally coated with silicon dioxide, with a lower k dielectric medium allows electronic signals to move faster through the chip interconnections. Coupled with the lower resistance properties of copper interconnects, low-k dielectrics provide significant improvement in overall IC performance.

However, low-k dielectric materials are of lower modulus and strength than silicon dioxide, presenting challenges at the packaging level. ASE has met those challenges, demonstrating outstanding reliability over thousands of hours of testing. Using a rigo rous quality and reliability testing methodology, ASE has qualified its high performance wire bond and flip chip BGA packages with body sizes up to 37.5mm by 37.5mm.

“The accomplishment marks a significant milestone for ASE, as the industry in general has reported difficulties qualifying packages on low-K. ASE has gained a breakthrough after extensive research and development effort with TSMC, using new and advanced techniques, ” said Dr. Ho-Ming Tong, vice president of Advanced Technologies, ASE Group. “The use of flip chip packaging further enhances the performance of the copper low-K chip as the I/O pads are distributed all over the surface of the chip, allowing optimization of the circuit path and reduction of signal inductance.”

“TSMC is already the foundry industry leader in the deployment of 0.13-micron manufacturing technology. By offering a process using low-k dielectrics, we provide our customers with the opportunity to substantially increase performance while reducing power, ” said Genda Hu, vice president of marketing at TSMC. “By qualifying wire bond and flip chip packaging schemes for this process, we can deliver an integrated solution, from chip to component, for our customers who want to gain the extra speed and power performance using the low-k dielectric process.”

“TSMC is undoubtedly the leading foundry provider in the application of copper low-k dielectric materials on 200mm and 300mm wafers. Chips manufactured using this process technology are expected to quickly ramp in volume production due to their marked improvements in chip performance, increased speed and reduced power consumption, ” said J.J. Lee, vice president, ASE Group Research and Development. “As a leading manufacturing service provider, we continuously keep up with the technologies of our customers and partners in order to complement our packaging and testing services of next generation chips.”

Meanwhile, ASE’s R&D team continues to work on a wide portfolio of packages including flip chip and wire bond, on TSMC’s 200mm and 300mm wafers. In addition, ASE is working on the qualification of its internal bumping capabilities on 300mm copper low-k wafers. Reliability data is available upon request. For more information, please contact your nearest ASE sales office or email


About ASE, Inc.

ASE, Inc. is the leading global provider of semiconductor manufacturing services in assembly and test. Alongside a broad portfolio of established assembly and test technologies, ASE is also delivering innovative advanced packaging and system-in-package solutions to meet growth momentum across a broad range of end markets, including 5G, AI, Automotive, High-Performance Computing, and more. To learn about our advances in SiP, Fan-out, MEMS & Sensor, Flip Chip, and 2.5D, 3D & TSV technologies, all ultimately geared towards applications to improve lifestyle and efficiency, please visit: or follow us on on LinkedIn and X: @aseglobal.