PATENT CLAIM ANALYSIS

Application Number: 15864741
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["257", "422000"]

Abstract:
Methods of magnetically shielding a perpendicular STT-MRAM structure on all six sides within a flip-chip package and the resulting devices are provided. Embodiments include forming a passivation stack over an upper surface of a wafer and outer portions of an Al pad; forming a polymer layer over the passivation stack; forming a UBM layer over the Al pad, portions of the polymer layer and along sidewalls of the polymer layer; forming a T-shaped Cu pillar over the UBM layer; forming a μ-bump over the T-shaped Cu pillar; dicing the wafer into a plurality of dies; forming an epoxy layer over a bottom surface of each die; forming a magnetic shielding layer over the epoxy layer and along sidewalls of each die, the epoxy layer, the passivation stack and the polymer layer; and connecting the μ-bump to a package substrate with a BGA balls.

Claim (Index 4):
The method according to  claim 1 , comprising forming the UBM layer and the T-shaped Cu pillar by:\n forming a UBM layer over the polymer layer and the Al pad and along sidewalls of the polymer layer; forming a photoresist layer over the UBM layer on opposite sides of the Al pad; forming a Cu layer over the UBM layer and along sidewalls of the photoresist layer; stripping the photoresist layer; and removing exposed portions of the UBM layer down to the polymer layer.

Metadata:
- Claim Count in Document: 24.0
- Percentile: 86.0
- Lexical Diversity: 2.51613
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15080562', '13085759', '15241100', '10726042', '13901311']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.901698937143576
- 35 USC 102 Novelty (BERT): 0.515645137197704
- Combined Prediction Score: 0.8630935571489889
- Mean Citation Score: 231.833634
- Max Citation Score: 260.98712
- Similarity Product: 167.3144063965416

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