Patent ID: 9659889
Date: 2017-05-23
CPC Classifications: B23K,C08G,C08K,C09D,H01L

Claim:
1. A method for making an electronic assembly, comprising: placing a photo mask with respect to a water-soluble resist coating, the water-soluble resist coating being in contact with a surface of an initial assembly, the initial assembly including an electronic component, the surface formed, at least in part, by an electrical terminal of the electronic component, the photo mask forming a mask hole configured to admit laser energy to contact and ablate the water-soluble resist coating, the mask hole being aligned, at least in part, with the electrical terminal; forming a hole in a water-soluble resist coating by applying laser energy to ablate the water-soluble resist coating through the mask hole of the photo mask; applying heat to solder as applied to the hole formed in a water-soluble resist coating; and reflowing the solder, wherein the solder couples, at least in part, with the electrical terminal.