Patent ID: 9502394
Filing Date: 2016-11-22
CPC Classification: H01L

Claim Text:
1. A method comprising: providing a first substrate, a first pad being on a first surface of the first substrate, a first die being attached to the first surface of the first substrate; treating the first pad on the first surface of the first substrate to produce a treated surface of the first pad, the treating comprising one of treating the first pad with a plasma or doping the first pad with a dopant; forming a stud bulb on the treated surface of the first pad; after forming the stud bulb, forming a protection coating on the stud bulb; providing a second substrate, a second pad being on a first surface of the second substrate; providing a solder connector on the second pad; and after forming the protection coating and providing the solder connector, reflowing the solder connector to produce a reflowed solder connector, the reflowed solder connector contacting the stud bulb and the second pad, the reflowed solder connector coupling the first substrate to the second substrate.