semi合集-English.pdf - 第7652页

SEMI T6-0697 © SEMI 1997, 2004 5 APPENDIX 2 EDI TRANSMISSION FLOWCHART NOTICE : The material in this appendix is an official part of SEMI T6 and was approved by full l etter ballot proce dures.

100%1 / 7923
SEMI T6-0697 © SEMI 1997, 2004 4
APPENDIX 1
EDI BUSINESS MODEL
NOTICE: The material in this appendix is an official part of SEMI T6 and was approved by full letter ballot procedures.
A1-1 Any implementation model is agreed upon by trading partners. It is the intent of this
document to make interpretation of the models used for transmitting electronic messages more
consistent, so that implementations are based upon common practices.
A2-1 Attributes of EDI Messages
A2-1.1 Certificate of Analysis (CA) — One message containing measurement or statistical data for one shipment,
from one supplier site to one user site, of one user part number against one user purchase order shipped. Multiple lot
numbers may be included in the shipment.
A2-1.2 Test Results (RT) — Used to designate data provided by special request (e.g., engineering, qualifications).
This message contains specific measurement or statistical data for one request, from one trading partner to another
trading partner, of one part number against one purchase order. Multiple lot numbers may be included.
A2-1.3 Statistical Results (SR) — One message containing measurement or statistical data for defined parameters
for a period of time from one trading partner to another.
SEMI T6-0697 © SEMI 1997, 2004 5
APPENDIX 2
EDI TRANSMISSION FLOWCHART
NOTICE: The material in this appendix is an official part of SEMI T6 and was approved by full letter ballot procedures.
SEMI T6-0697 © SEMI 1997, 2004 6
APPENDIX 3
NEW EDI STATISTICS (DEFINITIONS)
NOTICE: The material in this appendix is an official part of SEMI T6 and was approved by full letter ballot procedures.
A3-1 Additions to ANSI’s Statistical Codes to be Included within this Standard
A3-1.1 These new statistical codes are added to a predefined ANSI list of summary statistics found in Appendix 3
under the transaction segment STA. The codes are HS, HW, HC, GM, GS, PK, EC, OC, and PE and are submitted
to ANSI for approval. The codes can be used in an EDI message as long as the trading partners agree to include
them as part of their transmissions. Once the codes are approved, the ASC X12 convention will be updated to
automatically accept these codes as standards.
A3-1.2 Histogram Information
A3-1.2.1 HS = Histogram Start (Left side of first class or bar)
A3-1.2.2 HW = Histogram Class Width (Width of class or bar)
A3-1.2.3 HC = Histogram Class Count (Count of classes or bars)
A3-1.3 Process Capability Information
A3-1.3.1 GM = Geometric Mean (GMEAN). For the lognormal distribution, it’s calculated as:
TMEAN = The mean of the natural log of the raw data values
GMEAN = EXP(TMEAN+ (TSIGMA**2)/2)
A3-1.3.2 GS = Geometric Sigma (GSIGMA). For the lognormal distribution, it’s calculated as:
TSIGMA = The sigma of the natural log of the raw data values
GSIGMA = SQRT((EXP((2*TMEAN)+(TSIGMA**2)))**EXP((TSIGMA**2))-1))
A3-1.3.3 PK = The peak of the fitted probability distribution function. It’s calculated as the maximum Y
value of the probability distribution function after it is fitted to the process histogram.
A3-1.3.4 EC = The equivalent normal Cpk (ECPK). For the lognormal distribution, it’s calculated as:
ECPK = ((LN(USL))-LN((GMEAN**2/(SQRT(GMEAN**2+GSIGMA**2))))/ (3*SQRT(LN
(GMEAN**2)/ GMEAN**2)))
A3-1.4 Outlier Information
A3-1.4.1 OC = Outlier Count. It may be calculated as A minus B, where A = the count beyond a chosen
sigma point using the histogram, and B = the count beyond the chosen sigma point using the statistical
distribution.
A3-1.5 Percentile Information
A3-1.5.1 PE = Percentile. Like the HG, it can be repeated to give different elements. The user and supplier
need to agree on the order for a particular application.