SEMI International Standards
SEMI New Activity Report Form (SNARF)

Activity Number: 4805
SNARF for: New Standard Specification of Solar Grade Si Feedstock Materials

Originating Global Technical Committee: Photovoltaic
Originating Technical Committee Region: Europe
Task Force in which work is to be carried out: PV Silicon Materials Task Force

1. Rationale:
The increasing number of players in the market for Si feedstock materials has introduced a wide variety of material grades. This requires considerable efforts of the parties involved to achieve a common understanding of the material specifications and the impacts of the different materials on the resulting PV product quality and performance. Standardized specifications of these materials are highly desirable.

Rate the Estimated Effect on the Industry
2: Major effect on an industry sector - identify the relevant sector

Rate the Estimated Technical Difficulty of the Activity
II: Some Difficulty - Disagreements on known requirements exist but developing consensus is possible

2. Scope:
a: Define the areas to be covered or addressed by this activity or document:
A specification for solar grade Si feedstock materials, including CVD poly-Si and umg-Si, will be developed as a joint effort of the suppliers of such materials.

b: Expected result of activity
New Standard

3. Projected Timetable for Completion:
a: General Milestones
a. Activity Start: 09/01/2009b. 1st Draft by: 02/01/2010
c. Preballot by: d. Technical Ballot by: 10/01/2010
e. Committee Approval By:01/01/2011

Safety Considerations:
The resulting document is expected NOT to be a Safety Guideline

Intellectual Property Considerations:
a. In complying with the standard or safety guideline to be developed, the use of patented technology or a copyrighted item(s) is NOT required
b. The body of the standard and any appendices or related information sections will NOT include copyrighted material

Comments, Special Circumstances: None.

Approval: Activity approved by Committee/GCS on September 22, 2009