Automated Site Redress Method Application For Pb-Free ReworkAuthors: Sven Peng, Wayne Zhang, PK Pu, Phil Isaacs, William Uy and Henley Zhou
Company: IBM Corporation and Flextronics Zhuhai
Date Published: 10/14/2012 Conference: SMTA International
Automated Site Redress (ASR), with its advantages of automation, repeatable results and better heat transfer efficiency with the utilization of optional bottom heater etc., has been increasingly used for hot gas rework site redress, as well as for removing the solder in PTH holes after component removal.
This paper will present the introduction of different site redress methods on reworks from a server-level complexity and lead free assembly. The application of ASR for both BGA and PTH component rework, in terms of appropriate process parameter development, process validation and comparison of results to other methods. In addition, the construction analysis post reworks will be discussed.
Lead Free, Rework, Automated Site Redress, PTH, BGA
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