PATENT CLAIM ANALYSIS

Application Number: 16165549
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["365", "156000"]

Abstract:
Read-assist circuits for memory bit cells employing a P-type Field-Effect Transistor (PFET) read port(s) are disclosed. Related memory systems and methods are also disclosed. It has been observed that as node technology is scaled down in size, PFET drive current (i.e., drive strength) exceeds N-type FET (NFET) drive current for like-dimensioned FETs. In this regard, in one aspect, it is desired to provide memory bit cells having PFET read ports, as opposed to NFET read ports, to increase memory read times to the memory bit cells, and thus improve memory read performance. To mitigate or avoid a read disturb condition that could otherwise occur when reading the memory bit cell, read-assist circuits are provided for memory bit cells having PFET read ports.

Claim (Index 1):
A memory system, comprising:\n a memory bit cell, comprising:\n a storage circuit configured to store data; \n one or more p-type Field-Effect Transistor (PFET) access transistors coupled to the storage circuit; and \n each of the one or more PFET access transistors comprising a gate configured to be activated by a wordline in response to a read operation to cause the one or more PFET access transistors to pass the data from the storage circuit to a bitline read-assist circuit coupled to the memory bit cell; and \n a read-assist circuit configured to boost a voltage in the memory bit cell in response to the read operation to assist in transferring the data from the storage circuit to a bitline, the read-assist circuit comprising a bitline positive boost circuit coupled to the bitline, and configured to positively boost a voltage on the bitline to positively boost a gate (G) voltage-to-source (S) voltage (Vgs) of the one or more PFET access transistors in response to the read operation.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 97.0
- Lexical Diversity: 1.77778
- Patent Class: 365.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15645355', '14862712', '14862555', '14862483', '14862636']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8710839361878624
- 35 USC 102 Novelty (BERT): 0.6868121334183173
- Combined Prediction Score: 0.852656755910908
- Mean Citation Score: 669.7922259999998
- Max Citation Score: 725.4755
- Similarity Product: 702.8363462482989

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