NA Photovoltaic Materials Committee Liaison Report NA PV Liaison Report - Baylies/BayTech NA Photovoltaic Materials Committee Liaison Report Updated April 8, 2012 Berlin, March 9, 2010

NA PV Materials Committee Liaison Leadership Co-chair Lori Nye (Brewer Science) Dick Hockett (Evans Analytical Group) NEW – John Valley (MEMC) NA PV Materials Committee Liaison

NA Photovoltaic Materials Committee C: Lori Nye – Brewer Science C: Dick Hockett – Evans Analytical C: John Valley – MEMC Int’l PV Analytical Test Methods TF Dick Hockett – Evans Analytical Group PV Materials TF Lori Nye – Brewer Science PV Gas & Liquid Chem. Purity TF Marty Burkhart – Hi Pure Tech Suhas Ketkar – Air Products Tom Hackett – KMG Chemicals PV Electrical and Optical Properties Measurement TF Austin Blew – Lehighton Electronics Chris Moore – Semilab NA PV Committee Liaison

NA PV Materials Committee Liaison Meeting Information Last meeting NA Spring Standards Meeting SEMI HQ, San Jose, CA April 3-4, 2012 Next meeting Intersolar North America San Francisco, CA July 10-11, 2012 www.semi.org/standards for the latest update NA PV Materials Committee Liaison

NA PV Materials Committee Liaison New SNARFs SNARF: Test Method for QSS Microwave PCD measurements of Carrier Decay and Lifetime Submitted by: PV Electrical & Optical Properties Measurement TF SNARF: Preparation of an auxiliary document describing the results of a multi-laboratory round-robin study for the demonstration of the SEMI test-method standard PV-13-0211, Test Method for Contactless Excess-Charge-Carrier Recombination Lifetime Measurement in Silicon Wafers, Ingots, and Bricks Using an Eddy-Current Sensor Submitted by: Int’l PV Analytical Test Methods TF NA PV Materials Committee Liaison

Ballot Results Summary [1] Doc. 5242, New Standard: Guide for Fluorine (F2) , Used In Photovoltaic Applications Failed and to reballot in cycle 3 or 4 Doc. 5158, New Standard: Specification for AntiReflective-Coated Glass, Used in Crystalline Silicon Photovoltaic Modules – Submitted by Suntech (China) NA PV Materials Committee Liaison

Ballot Results Summary [2] Doc. 5381, Auxiliary Information: Photovoltaic and Semiconductor Shared Gases and Liquid Chemical Standards – March 2012 Approved by the technical committee NA PV Materials Committee Liaison

NA PV Materials Committee Liaison Ballot for cycle 3 or 4, 2012 Doc. 4675B, New Standard: Test Method for the Measurement of Elemental Impurity Concentrations in Silicon Feedstock by Bulk Digestion, Inductively-Coupled-Plasma Mass Spectrometry Doc. 5242A, New Standard: Guide for Fluorine (F2) , Used In Photovoltaic Applications Doc. 5158A, New Standard: Specification for AntiReflective-Coated Glass, Used in Crystalline Silicon Photovoltaic Modules NA PV Materials Committee Liaison

Int’l PV Analytical Test Methods TF [1] Dick Hockett/Evans Analytical Group Charter: Develop standards for analytical test methods for PV industry. Published 5 Standards, 3 Auxiliary Information PV1-0211 - Test Method for Measuring Trace Elements in Si. Feedstock for Si. Solar Cells by High-Mass Resolution Glow Discharge Mass Spectrometry PV9-1110 - Test Method for Excess Charge Carrier Decay in PV Silicon Materials by Non-Contact Measurements of Microwave Reflectance After a Short Illumination Pulse PV10-1110 - Test Method for Instrumental Neutron Activation Analysis (INAA) of Silicon PV13-0211 - Test Method for Contactless Excess-Charge-Carrier Recombination Lifetime Measurement in Silicon Wafers, Ingots, and Bricks Using an Eddy-Current Sensor PV25-1011 - Test Method for Simultaneously Measuring Oxygen, Carbon, Boron And Phosphorus in Solar Silicon Wafers and Feedstock by Secondary Ion Mass Spectrometry NA PV Materials Committee Liaison

Int’l PV Analytical Test Methods TF [2] Auxiliary Information — A Type of Document that is independently published, not a part of a Standard or Safety Guideline, containing illustrative, explanatory, or supporting material (e.g., application information, examples) AUX017-0310, Auxiliary Information for Contactless Measurement of Carrier Recombination Lifetime in Silicon Wafers and Ingots AUX019-0211, Auxiliary Information for Interlaboratory Study Results For Determining the Precision of SEMI PV1 AUX022-0611, Auxiliary Information, Conversion of units for impurity concentrations in Silicon NA PV Materials Committee Liaison

Int’l PV Analytical Test Methods TF [3] Drafting Doc. 4675B, New Standard: Test Method for the Measurement of Elemental Impurity Concentrations in Silicon Feedstock by Bulk Digestion, Inductively-Coupled-Plasma Mass Spectrometry, To be submitted in cycle 3-2012 Doc. 5093, Auxiliary Information, Round Robin (Multi-Laboratory Test) for PV9-1110 Other round robins are being sought PV10-1110 - Test Method for Instrumental Neutron Activation Analysis (INAA) of Silicon PV25-1011 - Test Method for Simultaneously Measuring Oxygen, Carbon, Boron And Phosphorus in Solar Silicon Wafers and Feedstock by Secondary Ion Mass Spectrometry NA PV Materials Committee Liaison

PV Chemicals and Gases Purity TF [1] Marty Burkhart/Hi Pure Tech Tom Hackett/KMG Chemicals Suhas Ketkar/Air Products Charter: Provide documents for gas and liquid chemicals that can be used to obtain consistent, specified process materials. NA PV Materials Committee Liaison

PV Chemicals and Gases Purity TF[2] High Purity Water PV3-0310 – Guide For High Purity Water Used In Photovoltaic Cell Processing Chemicals PV5-1110 - Guide for Oxygen (O2), Bulk, Used In Photovoltaic Applications PV6 -1110 - Guide for Argon (Ar), Bulk, Used In Photovoltaic Applications PV7 -1110 - Guide for Hydrogen (H2), Bulk, Used In Photovoltaic Applications PV8 -1110 - Guide for Nitrogen (N2), Bulk, Used In Photovoltaic Applications PV14-0211- Guide For Phosphorus Oxychloride, Used In Photovoltaic Applications PV21-1011- Guide for Silane (SiH4), Used In Photovoltaic Applications PV24-1011- Guide for Ammonia (NH3) In Cylinders, Used In Photovoltaic Applications PV26-1011- Specifications for Hydrogen Selenide (H2Se), Used In Photovoltaic Applications PV27-1011- Specifications for Ammonium Hydroxide (NH4OH), Used In Photovoltaic Applications PV30-0212, Specifications for 2-Propanol, Used In Photovoltaic Applications

PV Chemicals and Gases Purity TF[3] Acids PV11-1110 - Specifications for Hydrofluoric Acid, Used In Photovoltaic Applications PV12-1110 - Specifications for Phosphoric Acid, Used In Photovoltaic Applications PV16-0511 - Specifications for Nitric Acid, Used In Photovoltaic Applications PV20-1011 - Specifications for Hydrochloric Acid, Used In Photovoltaic Applications PV33-0212 - Specifications for Sulfuric Acid, Used In Photovoltaic Applications

PV Chemicals and Gases Purity TF[4] Docs being drafted: Doc. 5156A, Specifications for Hydrogen Peroxide, Used In Photovoltaic Applications Doc. 5241, Specification for Potassium Hydroxide 45% (KOH), Used In Photovoltaic Applications NA PV Materials Committee Liaison

PV Chemicals and Gases Purity TF[5] Existing SEMI Standards already fill needs Diborane, Phosphine, Sulfur Hexafluoride, Carbon Tetrafluoride, Nitrogen Trifluoride (NF3), Helium Doc. 5381, Auxiliary Information: Photovoltaic and Semiconductor Shared Gases and Liquid Chemical Standards Approved by the technical committee NA PV Materials Committee Liaison

PV Electrical and Optical Properties Measurements TF [1] Austin Blew/Lehighton Electronics Chris Moore/Semilab Charter : Develop standards for measuring electrical and optical properties of PV materials that become an integral part of a PV “device” e.g. cells, modules, etc. NA PV Materials Committee Liaison

PV Electrical and Optical Properties Measurements TF[2] Published PV28-0212, Test Methods for Non-destructive measurement of the Sheet Conductance, Sheet Resistance, Mobility, Dopant Density of the Substrates PV31-0212, Test Method for Spectrally Resolved Reflective and Transmissive Haze of Transparent Conducting Oxide (TCO) Films for PV Application PV15-0211 Guide for Defining Conditions for Angle Resolved Light Scatter Measurements to Monitor The Surface Roughness and Texture of PV Materials NA PV Materials Committee Liaison

PV Electrical and Optical Properties Measurements TF[3] Drafting Doc. 4825, New standard: Test Methods for Hg Probe Measurements of Crystalline Silicon PV Materials and Devices Doc. Xxxx, Test Method for QSS Microwave PCD measurements of Carrier Decay and Lifetime NA PV Materials Committee Liaison

NA PV Materials Committee Liaison PV Materials TF [1] Lori Nye/Brewer Science Published as PV22-1011 Specification for Silicon Wafers for Use as Photovoltaic Solar Cells A ballot (Doc. 5380) to withdraw SEMI M6-0307 Specification for Silicon Wafers for Use as Photovoltaic Solar Cells, Approved by NA Silicon Wafer Committee NA PV Materials Committee Liaison

NA PV Materials Committee Liaison PV Materials TF [2] Drafting Doc. 5032, New Standard: Guide for Specifying c-Si Terrestrial Solar Cells To be transferred to China committee, pending approval Doc. 5094, New Standard: Test Method for Interstitial Oxygen Content of Silicon by Fourier transform infrared spectroscopy for PV Materials NA PV Materials Committee Liaison

STEP at Intersolar North America PV2 – PV Equipment Communication Date: Tuesday, July 10, 2012 Time: 1:00-5:00 PM http://semiconwest.org/SessionsEvents/Standards NA PV Materials Committee Liaison

NA PV Materials Committee Liaison Questions? Contact Kevin Nguyen at knguyen@semi.org NA PV Materials Committee Liaison