Patent ID: 9698118
Date: 2017-07-04
CPC Classifications: H01L

Claim:
1. A method of forming a device, comprising: providing an integrated circuit (IC) package comprising a connector and an IC, and a molding compound, the molding compound encapsulating a first portion of the connector, wherein a second portion of the connector protrudes above a topmost surface of the molding compound; providing a printed circuit board (PCB) comprising a solder mask and a PCB contact pad within an opening in the solder mask; selectively applying a polymer flux to a portion of the PCB contact pad, wherein the polymer flux does not extend laterally beyond sidewalls of the opening; and after selectively applying the polymer flux, bringing the IC package into contact with the PCB and forming a connection between the PCB contact pad and the connector, wherein the polymer flux covers at least a part of the connector and extends over the topmost surface of the molding compound after the IC package and the PCB are brought into contact.