Patent ID: 11916003
Assignee: INTEL CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 12:
13. An electronic package, comprising:
a package substrate having a first surface and a second surface opposite from the first surface;
a die attached to the first surface of the package substrate;
an array of pads over the second surface of the package substrate; and
a plurality of solder balls, wherein each solder ball is over one of the pads in the array of pads, and wherein the plurality of solder balls comprises:
first solder balls; and
second solder balls that are different than the first solder balls, wherein the first solder balls have a first volume and a first material composition, wherein the second solder balls have a second volume and a second material composition, wherein the first volume is different than the second volume and the first material composition is different than the second material composition, and wherein the second solder balls each comprise a core, and solder completely surrounding the core, the solder having a material composition different than the first material composition.