Würth Solar WSK0020 CIGS Solar Panel

Transcription

1 Würth Solar WSK0020 CIGS Solar Panel Process Review For comments, questions, or more information about this report, or for any additional technical needs concerning semiconductor and electronics technology, please call Sales at Chipworks Richmond Road, Suite 500, Ottawa, ON K2H 5B7, Canada Tel: Fax:

2 Process Review Table of Contents 1.1 List of Figures 1.2 List of Tables 1.3 Company Profile 1.4 Introduction 1.5 Device Summary 1.6 Process Summary 2 Solar Panel Architecture 2.1 Solar Cell Panel Overview 2.2 Solar Cell Panel Features 2.3 Solar Panel Scribe Lines 3 Solar Cell Panel Cross-Sectional Analysis 3.1 General Structure 3.2 Transparent Polymer Layer 3.3 Metal Interconnect and Black Plastic Tape 3.4 CIGS Stack 3.5 Interconnect Structure Scribe Lines 3.6 TEM Cross-Sectional Analysis 4 Materials Analysis 4.1 SEM-EDS and TEM-EDS Analyses 4.2 FTIR Analysis of Transparent Polymer 4.3 XPS Analysis 5 Critical Dimensions 5.1 Solar Panel Dimensions 5.2 Horizontal and Vertical Dimensions 6 References 7 Statement of Measurement Uncertainty and Scope Variation A FTIR Analysis Report Report Evaluation

3 Overview List of Figures CIGS Solar Cell Schematic Diagram 2 Solar Panel Architecture Solar Panel Front Solar Panel Back Solar Panel Identification Label Panel Edge Panel Edge Panel Edge Panel Frame Cross Section Anode Connection Back Cathode Connection Back Anode Connection X-Ray Cathode Connection X-Ray Connection to Anode Front Connection to Cathode Front Panel Corner 1 Front Panel Corner 2 Front Panel Corner 3 Front Panel Corner 4 Front Panel Corner 1 Back Panel Corner 2 Back Panel Corner 3 Back Panel Corner 4 Back Active Area Corner 1 Front Active Area Corner 2 Front Active Area Corner 3 Front Active Area Corner 4 Front Active Area Corner 1 Back Active Area Corner 2 Back Active Area Corner 3 Back Active Area Corner 4 Back Active Area Corner 1 X-Ray P1 Scribe Line Back Anode Side P1 Scribe Line Back Cathode Side Scribe Lines Front Anode Side Scribe Lines Front Cathode Side Molybdenum Film Top Side

4 Overview Exposed CIGS Film Bottom Side Molybdenum Film P1 Scribe Line AFM Topography CIGS Film P1 Scribe Line AFM Topography Molybdenum Film P1 Scribe Line AFM Deflection CIGS Film P1 Scribe Line AFM Deflection 3 Solar Cell Panel Cross-Sectional Analysis Solar Panel Cleaved Edge Solar Panel Sawn Edge Transparent Polymer Copper Ribbon Edge SEM Copper Ribbon and Silver Loaded Epoxy Contact SEM Silver Loaded Epoxy Contact Detail SEM CIGS Stack Optical CIGS Stack SEM CdS and ZnO Buffer Layers SEM Molybdenum Anode Contact Layer SEM Interconnect Structure Scribe Lines Overview Optical P1 Scribe Line Optical P1 Scribe Line Edge SEM P2 Scribe Line Optical P2 Scribe Line Edge SEM P3 Scribe Line Optical P3 Scribe Line Edge SEM CIGS Stack Overview TEM CIGS and TCO Layers TEM ZnO Buffer and CdS Layers TEM Molybdenum Anode Contact Layer TEM 4 Materials Analysis SEM-EDS of ZnO:Al Transparent Conductive Oxide TEM-EDS of ZnO:Al Transparent Conductive Oxide SEM-EDS of CdS Interfacial Layer TEM-EDS of CdS Interfacial Layer SEM-EDS of CIGS Layer TEM-EDS of CIGS Layer SEM-EDS of Molybdenum Anode Plate TEM-EDS of Molybdenum Anode Plate SEM-EDS of Copper Ribbon SEM-EDS of Copper Ribbon Tin Plating SEM-EDS of Silver Loaded Epoxy Contact TEM-EDS of Bottom Glass CIGS Stack XPS Depth Profile (Bottom Up) Molybdenum Anode Layer XPS Depth Profile (Top Down) Top Glass XPS Survey Spectrum Bottom Glass XPS Survey Spectrum

5 Overview List of Tables Device Summary Process Summary 2 Solar Panel Architecture Solar Cell Panel Dimensions Scribe Lines Horizontal Dimensions 3 Solar Cell Panel Cross-Sectional Analysis CIGS Stack Vertical Dimensions 5 Critical Dimensions Solar Cell Panel Dimensions Scribe Lines Horizontal Dimensions CIGS Stack Vertical Dimensions

6 About Chipworks Chipworks is the recognized leader in reverse engineering and patent infringement analysis of semiconductors and electronic systems. The company s ability to analyze the circuitry and physical composition of these systems makes them a key partner in the success of the world s largest semiconductor and microelectronics companies. Intellectual property groups and their legal counsel trust Chipworks for success in patent licensing and litigation earning hundreds of millions of dollars in patent licenses, and saving as much in royalty payments. Research & Development and Product Management rely on Chipworks for success in new product design and launch, saving hundreds of millions of dollars in design, and earning even more through superior product design and faster launches. Contact Chipworks To find out more information on this report, or any other reports in our library, please contact Chipworks at: Chipworks 3685 Richmond Rd. Suite 500 Ottawa, Ontario K2H 5B7 Canada T: F: Web site: info@chipworks.com Please send any feedback to feedback@chipworks.com