To: Don Edgerton who wrote (629 ) 7/6/2000 7:35:19 AM From: Allegoria Read Replies (1) | Respond to of 1881 Another perspective of AMKOR's product. Ref:http://www.semiconductoronline.com/content/news/article.asp?DocID={1502913B-4CE7-11D4-8C54-009027DE0829}&Bucket=Technology+News Amkor prototypes System-in-Package 6/28/2000 By Kathereine Derbyshire System-on-chip (SOC) designs are attractive at first glance, but difficult to execute. They squeeze a handful if ICs and passive components onto a single die, reducing board footprint and total manufacturing cost. Yet many of the most commonly cited applications for SOC use a wide range of process technologies. For example, wireless applications are likely to require bipolar silicon or even GaAs circuitry in addition to logic and memory. Combining such disparate processes on a single chip can eliminate many of the cost benefits of integration. Tying IP blocks together is a challenging design task as well. Only a few vendors can muster the necessary design and process expertise. For the rest, system-in-package (SiP) designs offer many of the same advantages. Like SOC, SiP designs can be treated as a single functional block, ready to drop in to the overall system. Instead of a single chip, though, an SiP contains individual IC and passive components, bonded to a laminate substrate. SiP differs from multichip modules and hybrids because it relies on inexpensive plastic laminates and standard bonding and die attach methods. Patrick McKinney, senior VP of business development for Amkor Technology's Modules Group (Chandler, AZ, USA), explained that development of SiP modules requires close coordination between chip design, package design, and test development. For example, both the chip and package designs must minimize parasitic effects due to antennas and coils. Moreover, the finished design must meet both performance and manufacturability requirements. Amkor's recently opened package prototype line allows the company to develop functional, manufacturable package designs in collaboration with the customer. Since Amkor's main SiP manufacturing facility is in the Philippines, having a prototype line and design staff in the United States reduces turnaround time. The line can handle both flip chip and wirebond assembly processes. McKinney told Semiconductor Online that Amkor is currently working on prototypes with five or six customers. The line is processing six to eight lots per week, leaving lots of equipment time free for additional projects.