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Electrical Design for Manufacturing

IP.com Disclosure Number: IPCOM000249804D
Publication Date: 2017-Apr-06
Document File: 2 page(s) / 34K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method to identify design sensitivities (electrical design for manufacturability (DFM)) to aid the manufacturing process control as well as tool setup and selection.

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Title Electrical Design for Manufacturing Abstract Disclosed is a method to identify design sensitivities (electrical design for manufacturability (DFM)) to aid the manufacturing process control as well as tool setup and selection. Problem Simplifying product design assumptions are made (e.g., .lib generation, product timing) that are not linked to manufacturing control limits. Products have dissimilar sensitivities to manufacturing parameters. A post design assessment provides capability to determine specific sensitivities in products, without impacting cycle time. This information can be used to maximize yield by tuning processes, selecting the correct tools, and correlating to test fallout. Solution/Novel Contribution The novel contribution is a method to identify design sensitivities (electrical design for manufacturability (DFM)) to aid the manufacturing process control as well as tool setup and selection. Method/Process Implementing the method comprises generating compact models for the following:

1. Design flow A. Creating spice models B. Creating .lib rules (simplifying assumptions of parameter tracking) C. Designing product

2. Create manufacturing line center A. Nominal and sigma B. Control limits for in-line measurement structures

3. Electrical design for manufacturing A. Spice simulation (full parameter set) B. Identify top product sensitivities (closest to process window controls) C. Re-center key controls and/or apply selected tools

4. Electrical DFM can be corr...