PATENT CLAIM ANALYSIS

Application Number: 16015507
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-12
Patent Classification: ["438", "014000"]

Abstract:
Various embodiments of the present application are directed towards a method for workpiece-level alignment with low alignment error and high throughput. In some embodiments, the method comprises aligning a first alignment mark on a first workpiece to a field of view (FOV) of an imaging device based on feedback from the imaging device, and further aligning a second alignment mark on a second workpiece to the first alignment mark based on feedback from the imaging device. The second workpiece is outside the FOV during the aligning of the first alignment mark. The aligning of the second alignment mark is performed without moving the first alignment mark out of the FOV. Further, the imaging device views the second alignment mark, and further views the first alignment mark through the second workpiece, during the aligning of the second alignment mark. The imaging device may, for example, perform imaging with reflected infrared radiation.

Claim (Index 18):
A method for wafer-level alignment, the method comprising:\n manipulating a field of view (FOV) of an imaging device using an optical lens until a first alignment mark on a first workpiece is aligned to the FOV, wherein a second workpiece is elevated above the first workpiece and is outside the FOV during the manipulating; performing a first moving process to move the second workpiece laterally until a second alignment mark on the second workpiece is aligned to the first alignment mark based on images from the imaging device, wherein the first moving process is performed without moving the first alignment mark out of the FOV and achieves a first alignment accuracy between the first and second alignment marks, and wherein the imaging device images the first alignment mark through the second workpiece during the first moving process; and after the first moving process completes, performing a second moving process to move the first workpiece and/or the second workpiece vertically into contact while simultaneously moving the first workpiece and/or the second workpiece laterally into greater alignment based on images from the imaging device, wherein the second moving process achieves a second alignment accuracy between the first and second alignment marks that is greater than the first alignment accuracy.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 94.0
- Lexical Diversity: 2.70492
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13457832', '15687908', '14244086', '15194631', '10665404']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8272791431359515
- 35 USC 102 Novelty (BERT): 0.4990672527951062
- Combined Prediction Score: 0.794457954101867
- Mean Citation Score: 173.59853800000005
- Max Citation Score: 203.71729
- Similarity Product: 137.57967251436892

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