IBIS

This is an XML formatted map file that is identified in the header as IBIS. We have annotated a sample file with what we believe are the parameters and their function. In some cases, we don't know what the parameter means or does.

<?xml version="1.0"?>                           
<IBIS_WAFER_DATA>                                identifies as an IBIS wafer data
<HEADER>                                         start of header section
<WAFER_OCR_ID>TESTW07F1</WAFER_OCR_ID>           OCR ID readable on wafer/frame
<WAFER_BATCH_ID>TEST</WAFER_BATCH_ID>
<WAFER>07</WAFER>                                wafer number 
<PRODUCT>TYPE1</PRODUCT>                         product ID 
<DEVICE>DEVICE1</DEVICE>                         Device identification
<XSTEP>1.153000</XSTEP>                          X stepping (units in mm??)
<YSTEP>1.153000</YSTEP>                          Y stepping (units in mm??)
<FLAT_LOCATION>90</FLAT_LOCATION>                flat is on left side
<FLAT_TYPE>N</FLAT_TYPE>                         guessing that N = notch
<XREF></XREF>                                    don't know
<YREF></YREF>                                    don't know
<XDELTA>0</XDELTA>                               don't know
<YDELTA>0</YDELTA>                               don't know
<PRQUAD>1</PRQUAD>                               probe quad start
<COQUAD>1</COQUAD>                               coordinate quad reference
<DATE>11-10-2016</DATE>
<TIME>12:01:00</TIME>
<DIFF_CTR_ABR>XXX</DIFF_CTR_ABR>                 don't know
<PROBER>MAPWIZARD_1.7.1.1</PROBER>               prober/software used to generate
<CEPT_12NC>NO_CEPT</CEPT_12NC>                   don't know
<SLDI_12NC>NO_SLDI</SLDI_12NC>                   don't know
<FIRST_DIE>29,33</FIRST_DIE>                     array position of first die probed?
<XOFFSET>143</XOFFSET>                           don't know
<YOFFSET>33</YOFFSET>                            don't know
<BIN_COUNT_PASS>19634</BIN_COUNT_PASS>           count of die that passed
<WAFER_SIZE>200</WAFER_SIZE>                     wafer diameter
<WAFER_UNIT>MMT</WAFER_UNIT>                     units of wafer
<BIN_CODE
 PASS="1"
 PASS_2="2"
 OTP="3"
 IREF="*"    
 OPTICAL_PASS="?"
 UGLYDIE="/"
 EDGEDIE="-"              
 SKIPDIE=":"
 BIN206="?"
 BIN205="?"
 bin53="]"
 BIN59="?"
OPTIREJ=";"
OUTSIDE="."
>
</BIN_CODE>
<COLUMN_COUNT>171</COLUMN_COUNT>                # of columns in the matrix
<ROW_COUNT>171</ROW_COUNT>                      # of rows in the matrix
<DIE_SPACING_CX>0</DIE_SPACING_CX>              don't know - street width?
<DIE_SPACING_CY>0</DIE_SPACING_CY>              don't know - street width?
</HEADER>

After the header section comes the XML markup:

<WAFER_MAP>

which is followed by an continuous "stream" of ASCII bin codes with no spacing. It is the responsibility of the reading software to break these into chunks of 171 bin codes per row since that is the declared column count.

the stream of bin ID's is terminated with:

</WAFER_MAP>
</IBIS_WAFER_DATA>

The stream of bin ID's sums to 29,241 characters so this matches the array size of 171 x 171.