Abstract
Abstract 172-lead (16x16 mm body size) and 100-lead (10x10 mm body size) MAXQFP's and 172 MAXQFP_EP (exposed pad) for automotive industry are introduced. The advantage of MAXQFP as compare to standard LQFP/QFP packages will be outlined. Thermal & mechanical simulation results were performed to prove its advantage over conventional LQFP and LQFP_EP. The challenges in manufacturing, designs and concerns of tighter lead pitches for MAXQFP are briefly addressed. Methods and data to resolve these challenges will be shown. For example, Sn whisker and Sn migration both are concerns to MAXQFP because of smaller distance between adjacent leads. The board-level solder joint reliability (SJR) has been collected to prove it is AEC G1 compliant. Visual inspection methods and requirements on AOI (automatic object inspection) systems on solider joints of J-leads of MAXQFP for are proposed. Standard AEC G1 component level reliability stresses defined at AEC Q100 which are TC (temperature cycling), HTSL (high temperature storage life), THB (Temperature Humidity Biased) and uHAST (un-biased HAST) tests are summarized Since Cu wires were used, AEC Q006 data are also collected. Assembly challenges are described. Future works will be summarized.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
