Here is the abstract you requested from the nano_2012 technical program page. This is the original abstract submitted by the author. Any changes to the technical content of the final manuscript published by IMAPS or the presentation that is given during the event is done by the author, not IMAPS.
|Flux Free Die Attach Utilizing Pressure Variation to Achieve Void Free Results|
|Keywords: Void-free, Fluxless, Die attach|
|The increasing demand for advanced integrated circuits has placed an important focus on electronic packaging, materials and process. Any variations will have an effect on temperature uniformity, reliability and integrity of the multichip modules. The presence of voids reduces the reliability of the device when subjected to mechanical and thermal stresses. Improvements were developed where fluxless and voidless results were achieved using a technique referred to as the “pressure variation” method. The principle of the pressure variation method is to use external gas pressure to compress the air trapped in the joint.|
|Bruce Wilson, Regional Sales Manager