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Solder Joint Encapsulant Adhesive - LGA High Reliability And Low Cost Assembly Solution

Published:

January 12, 2016

Author:

Dr. Mary Liu and Dr. Wusheng Yin

Abstract:

More and more Land Grid Array (LGA) components are being used in electronic devices such as smartphones, tablets and computers. In order to enhance LGA mechanical strength and reliability, capillary flow underfill is used to improve reliability. However, due to the small gap, it is difficult for capillary underfill to flow into the LGA at SMT level. Due to cost considerations, there are usually no pre-heating underfill or cleaning flux residue processes at the SMT assembly line. YINCAE solder joint encapsulant SMT256 has been successfully used with solder paste for LGA assembly. Solder joint encapsulant is used in in-line LGA soldering process with enhanced reliability. It eliminates the underfilling process and provides excellent reworkability. The shear st rength of solder joint is stronger than that of underfilled components. The thermal cycling performance using solder joint encapsulant is much better than that using underfill. Bottom IC of POP has been studied for further understanding of LGA assembly process parameters. All details such as assembly process, drop test and thermal cycling test will be discussed in this paper....

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Company Information:

Yincae Advanced Materials, LLC is a developer, manufacturer, and supplier of high performance coatings, adhesives, electronic and optoelectronic materials.

Albany, New York, USA

Manufacturer

  • Phone 5184522880

See Company Website »

Company Postings:

(28) products in the catalog

(15) technical library articles

(57) news releases

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