Click on the wafer number to get its quality map in Postscript. Pipeline quality maps for the 6-in wafers are here , maps of die failure types are here , and maps of "random" bad pipeline cells are here .
 

Wafer #	Manufacturer #	Good die yield (%)	Good+fair die yield (%)
69	Y21316-11-20	0.0	0.7
70	Y21316-08-03	12.9	25.0
72	Y21316-10-08	1.5	3.0
74	Y21316-09-03	30.6	47.8
76	Y21316-12-04	44.8	55.2
80	Y21316-12-15	38.8	50.0
81	Y21316-11-03	0.0	0.7
82	Y21316-12-11	38.1	47.0
83	Y21316-11-18	3.0	7.5
85	Y21316-08-04	61.4	70.7
87	Y21316-08-01	55.0	63.6
89	Y21316-10-02	0.0	0.0
91	Y21316-10-01	0.7	2.2
92	Y21316-09-02	41.0	56.0
93	Y21316-09-05	63.4	71.6
137	Y21316-12-12	44.0	59.7
138	Y21316-11-11	0.0	1.5
140	Y21316-08-17	32.9	57.1
141	Y21316-08-06	56.4	67.1
142	Y21316-08-11	37.1	53.6
143	Y21316-08-15	60.0	68.6
144	Y21316-11-05	0.7	0.7
145	Y21316-10-18	3.7	11.2
146	Y21316-10-10	0.0	1.5
147	Y21316-12-14	39.6	49.3

These 6-in wafers were not backgrinded and backplated