PATENT CLAIM ANALYSIS

Application Number: 15966989
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-12
Patent Classification: ["257", "316000"]

Abstract:
3-d flash memory cells and methods of manufacture are described. The devices and methods recess a compound floating gate in between the silicon oxide slabs which reduces the quantum probability of electron tunneling between vertically adjacent storage cells. The devices and methods further include a high work function nanocrystalline metal in the compound floating gate. A polysilicon buffer layer forms a portion of the compound floating gate. The polysilicon buffer layer allows the high work function nanocrystalline metal to be selectively deposited. The polysilicon buffer layer further protects the high work function nanocrystalline metal from oxidation with the gate oxide subsequently formed on the other side.

Claim (Index 10):
A 3-d flash memory cell, the 3-d flash memory cell comprising:\n a stack of alternating silicon oxide slabs and tungsten slabs comprising a plurality of the silicon oxide slabs, wherein the tungsten slabs are recessed compared to the silicon oxide slabs to form a plurality of recesses between vertically neighboring silicon oxide slabs; a floating gate disposed entirely within at least one of the plurality of recesses, wherein the floating gate comprises a polysilicon buffer and a high work function metal and wherein the polysilicon buffer is horizontally disposed between the high work function metal and one of the tungsten slabs, wherein neither the polysilicon buffer nor the high work function metal extends horizontally outside the plurality of recesses; and a high-k dielectric liner disposed between the polysilicon buffer and one of the tungsten slabs, wherein the high-k dielectric liner is further disposed between the silicon oxide slabs and the tungsten slab.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 91.0
- Lexical Diversity: 1.86667
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15891126', '15882454', '15332910', '14452220', '14222418']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.950699253275334
- 35 USC 102 Novelty (BERT): 0.5232171696853805
- Combined Prediction Score: 0.9079510449163388
- Mean Citation Score: 316.724268
- Max Citation Score: 376.8563
- Similarity Product: 286.1364288247228

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

Dataset: test