PATENT CLAIM ANALYSIS

Application Number: 15861877
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["174", "262000"]

Abstract:
A circuit board assembly of an information handling system has stepped diameter vias that carry communication signals through printed circuit board (PCB) substrates. Each stepped diameter via has a first barrel portion of a first diameter that is drilled through a first portion of the PCB substrates and that is at least lined with a conductive material to electrically conduct a selected one of: (i) a direct current and (ii) a communication signal from an outer layer to an internal layer of the more than one PCB substrate. Each stepped diameter via further includes a second barrel portion that extends from the first barrel portion deeper into the PCB substrates. The second barrel portion has a second diameter that is less than the first diameter and the smaller second diameter improves signal integrity (SI).

Claim (Index 1):
A circuit board assembly comprising:\n more than one printed circuit board (PCB) substrate comprising an upper signal conductor, a buried signal conductor, and a plurality of ground conductors including upper ground conductors and lower ground conductors; a stepped diameter via comprising:\n a first barrel portion of a first diameter that is drilled through a first upper portion of the more than one PCB substrate and that is at least lined with a conductive material to electrically conduct a selected one of: (i) a direct current and (ii) a communication signal from an outer layer having the upper signal conductor to an internal layer of the more than one PCB substrate, the internal layer having the buried signal conductor, the upper ground conductors terminating proximate to the first barrel portion, with signal integrity maintained by anti-pad-spacing; and \n a second barrel portion that extends from the first barrel portion deeper into the more than one PCB substrate and that has a second diameter that is less than the first diameter, the second barrel portion being proximate to the lower ground conductors, wherein the second diameter being less than the first diameter increases anti-pad spacing changes electromagnetic transmission characteristics of the second barrel portion, reduces capacitive coupling between via walls and conductive planes by providing space for a larger antipad, and reduces resonance, which improves signal integrity; \n wherein the upper barrel portion connects the upper signal conductor to the buried signal conductor to electrically couple an outer layer of the more than one PCB substrates with a conductive pad of a selected substrate.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 2.1
- Patent Class: 174.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15019369', '14603191', '15627018', '15722519', '15231515']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8325235454338992
- 35 USC 102 Novelty (BERT): 0.4821936912193574
- Combined Prediction Score: 0.7974905600124451
- Mean Citation Score: 194.878056
- Max Citation Score: 222.97484
- Similarity Product: 172.94328988888265

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test