PATENT CLAIM ANALYSIS

Application Number: 15975167
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-11
Patent Classification: ["257", "667000"]

Abstract:
A method of assembling a flip chip IC package includes applying core underfill material to a surface of a package substrate in a pattern including an area corresponding to a core region of an IC die thereon that is to be attached, that excludes of an area corresponding to corners of the IC die. The IC die is bonded to the package substrate by pushing the IC die with a sufficient force for the core underfill material is displaced laterally by the bumps so that the bumps contact the land pads. After the pushing the corners of the IC die are not on the core underfill. Edge underfilling includes dispensing a second underfill material that is curable liquid to fill an area under the corners of the IC die. The second underfill material is cured resulting in it having a higher fracture strength as compared to the core underfill.

Claim (Index 14):
A flip chip integrated circuit (IC) package, comprising:\n an IC die having bumps coupled to bond pads on a top surface of the IC die that includes corners and a core region including a center of the die away from the corners; a package substrate having a package surface with a plurality of land pads thereon; wherein the bumps are attached to the plurality of land pads; a core underfill material between the IC die and package substrate under the IC die in the core region but not under the corners, and a second underfill material between the IC die and package substrate under the corners of the IC die comprising a second composition, wherein the second underfill has a higher fracture strength as compared to a fracture strength of the core underfill material.

Metadata:
- Claim Count in Document: 25.0
- Percentile: 93.0
- Lexical Diversity: 2.1831
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['10407534', '12469935', '12575522', '12171026', '12694012']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.923456123394886
- 35 USC 102 Novelty (BERT): 0.5107460959876017
- Combined Prediction Score: 0.8821851206541576
- Mean Citation Score: 271.268364
- Max Citation Score: 281.37292
- Similarity Product: 187.83675607989312

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test