Die Attach Process Analysis of Enhanced Stand-off Stopper on Tapeless Leadframe

E. Graycochea Jr., F. Gomez, R. Rodriguez, B. Bacquian
2020 Journal of Engineering Research and Reports  
Improvement on the process and design is often a reliable way to resolve a problem especially in semiconductor industry. This paper presents a leadframe or semiconductor carrier merged with a stand-off design structure that will maintain a consistent bond line thickness (BLT) criteria for quad-flat no-leads (QFN) packages. Through package and process conceptualization, the stand-off design located on the leadframe underneath the silicon die corners would result to a steady and consistent BLT
more » ... ing die attach process. With the improved design, die tilt occurrence in die attach process would be mitigated.
doi:10.9734/jerr/2020/v11i117051 fatcat:gavayubiuncppiqoeqnzhezru4