NA Photovoltaic Materials Committee Liaison Report NA PV Liaison Report - Baylies/BayTech NA Photovoltaic Materials Committee Liaison Report Updated March 12, 2012 Berlin, March 9, 2010

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

NA Photovoltaic Materials Committee C: Lori Nye – Brewer Science C: Dick Hockett – Evans Analytical 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 Fall Standards Meeting SEMI HQ, San Jose, CA Oct 25-26, 2011 Next meeting NA Spring Standards Meeting April 3-4, 2012 www.semi.org/standards for the latest update NA PV Materials Committee Liaison

Ballot Results Summary [1] 4 Docs passed committee review Doc. 4726A , Test Methods for Measuring Resistivity or Sheet Resistance with a Single-Sided Noncontact Eddy-Current Gauge Published as PV28-0212 Doc. 5111, Test Method for Spectrally Resolved Reflective and Transmissive Haze of Transparent Conducting Oxide (TCO) Films for PV Application Published as PV31-0212 Doc. 5095A, Specifications for 2-Propanol, Used In Photovoltaic Applications Published as PV30-0212 Doc. 5157A, Specifications for Sulfuric Acid, Used In Photovoltaic Applications Published as PV33-0212 NA PV Materials Committee Liaison

Ballot Results Summary [2] Doc. failed committee review and to be reballoted for cycle 3-2012 Doc. 4675A, New Standard: Test Method for the Measurement of Elemental Impurity Concentrations in Silicon Feedstock for Silicon Solar Cells By Bulk Digestion, Inductively Coupled-Plasma Mass Spectrometry NA PV Materials Committee Liaison

NA PV Materials Committee Liaison Ballot for cycle 2 and 3, 2012 Doc. 5242, New Standard: Guide For Fluorine (F2), Used In Photovoltaic Applications Submitted in cycle 2-2012 , to be reviewed at NA Spring meeting 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 for cycle 3-2012 for review at Intersolar NA, San Francisco, CA in July 10-11. 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 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 NA PV Materials Committee Liaison

PV Chemicals and Gases Purity TF[3] Docs approved by Technical committee Doc. 5095A, Specifications for 2-Propanol, Used In Photovoltaic Applications – Published as PV30-0212 Doc. 5157A, Specifications for Sulfuric Acid, Used In Photovoltaic Applications – Published as PV33-0212 Docs being drafted: Doc. 5156A, Specifications for Hydrogen Peroxide, Used In Photovoltaic Applications Doc. 5242, Guide or Specification for Fluorine (F2) , Used In Photovoltaic Applications Submitted in cycle 2-2012 for review at NA Spring meeting NA PV Materials Committee Liaison

PV Chemicals and Gases Purity TF[4] 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 To be reviewed and approved at NA Spring 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. Published SEMI 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[2] Doc. approved by Technical committee Doc. 4726A, New Standard: Test Methods for Non-destructive measurement of the Sheet Conductance, Sheet Resistance, Mobility, Dopant Density of the Substrates Published as PV28-0212 Doc. 5111, New Standard: Test Method for Spectrally Resolved Reflective and Transmissive Haze of Transparent Conducting Oxide (TCO) Films for PV Application Published as PV31-0212 Drafting Doc. 4825, New standard: Test Methods for Hg Probe Measurements of Crystalline Silicon PV Materials and Devices NA PV Materials Committee Liaison

NA PV Materials Committee Liaison PV Materials TF [1] Lori Nye/Brewer Science Doc. 4826C, Specification for Silicon Wafers for Use as Photovoltaic Solar Cells Published as PV22-1011 A ballot was issued in cycle 2-2012 to withdraw SEMI M6-0307 Specification for Silicon Wafers for Use as Photovoltaic Solar Cells, To be reviewed at 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 Doc. 5094, New Standard: Test Method for Interstitial Oxygen Content of Silicon by Fourier transform infrared spectroscopy for PV Materials Doc. 5156, New Standard: Specification for AntiReflective-Coated Glass, Used in Crystalline Silicon Photovoltaic Modules – Submitted by Suntech (China), balloted in Cycle 1-2012 To be reviewed at NA Spring meetings NA PV Materials Committee Liaison

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