Push plate, mounting assembly, circuit board, and method of assembling thereof for ball grid array packages

Patent Number: 9,653,230
Issued: 5/16/2017
Official Filing: View the Complete Patent
Abstract: A push plate that includes springs in the form of cantilever flexures and an inspection window is disclosed. The push plate provides a known, uniform, down force and minimal torque to a package to be tested. The cantilevers have a known, calculable down force producing stiffness. The window provides for viewing of the package during testing.
Filed: 2/14/2013
Application Number: 13/767,578
Government Interests: STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.