PATENT CLAIM ANALYSIS

Application Number: 15885787
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["438", "107000"]

Abstract:
Disclosed herein are methods of fabricating a packaged radio-frequency (RF) device. The disclosed methods use an encapsulant on solder balls to control the distribution of an under-fill material between one or more components and a packaging substrate. The encapsulant can be used in the ball attach process. The fluxing agent leaves behind a material that encapsulates the base of each solder ball. The encapsulant forms an obtuse angle with the substrate surface and with the ball surface. This reduces the tendency of the under-fill material to wick around the solder balls by capillary action which can prevent or limit the capillary under-fill material from flowing onto or contacting other components. Accordingly, the disclosed technologies control under-fill for dual-sided ball grid array packages using an encapsulant on the solder balls.

Claim (Index 7):
A method for manufacturing packaged radio-frequency devices, the method comprising:\n mounting one or more lower components within a die area on an underside of a packaging substrate so that there is a gap between the one or more lower components and the packaging substrate, the packaging substrate having an upper side with one or more upper components mounted thereto, the underside of the packaging substrate having the die area and a contact pad area having a plurality of contact pads for through-mold connections; mounting the solder balls to the underside of the packaging substrate, the solder balls being coated with a fluxing agent that leaves behind a material that encapsulates the base of each solder balls, the material forming an encapsulant; after mounting the solder balls, depositing an under-fill material on the packaging substrate so that the under-fill material penetrates into the gap.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 86.0
- Lexical Diversity: 1.71605
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15885779', '15885782', '15724722', '13831367', '13853784']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8608583126742061
- 35 USC 102 Novelty (BERT): 0.5338931558836937
- Combined Prediction Score: 0.8281617969951548
- Mean Citation Score: 251.744808
- Max Citation Score: 371.96115
- Similarity Product: 309.7072902811557

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