PACKAGE SUBSTRATE WITH TESTING PADS ON FINE PITCH TRACES
Some implementations provide a substrate that includes several traces, a solder resist layer covering the several traces, and a testing pad coupled to a trace from the several traces. The testing pad is at least partially exposed and at least partially free of the solder resist layer when a chip is...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English French German |
Published |
01.01.2020
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Some implementations provide a substrate that includes several traces, a solder resist layer covering the several traces, and a testing pad coupled to a trace from the several traces. The testing pad is at least partially exposed and at least partially free of the solder resist layer when a chip is coupled to the substrate. In some implementations, the several traces have a pitch that is 100 microns (μm) or less. In some implementations, the substrate is a package substrate. In some implementations, the package substrate is a package substrate on which a thermal compression flip chip is mounted during an assembly process. In some implementations, the testing pad is free of a direct connection with a bonding component of the chip when the chip is coupled to the substrate. In some implementations, the bonding component is one of a solder ball. |
---|---|
Bibliography: | Application Number: EP20140711635 |