Patent ID: 9620462
Date: 2017-04-11
CPC Classifications: H01L,H05K

Claim:
1. A method comprising: providing a first cavity-down Ball Grid Array (BGA) package having a first substrate member and an array of bond balls, the array comprising a pair of rows of outer mesh bond balls and a row of inner signal bond balls, each row being parallel to each other wherein a distance between each row is less than five times a diameter of the bond balls; providing a second cavity-down BGA package having a second substrate member and a surface-mount blocking element, the surface-mount blocking element being a discrete electronic component; and surface-mounting the first BGA package to the second substrate member such that the surface-mount blocking element is disposed between the pair of rows of outer mesh bond balls and the row of inner signal bond balls to protect against unauthorized access to the row of inner signal bond balls.