|
 |
|
|
BASIC DATA
|
|
PCBs wave soldered per week
|
|
962
|
|
Average number of joints per PCB
|
|
1556
|
|
Total opportunities per week
|
|
1,496,872
|
|
Defect rate (%)
|
|
0.03
|
|
Defects per PCB
|
|
0.4668
|
|
Defects per week
|
|
449
|
|
TOUCH UP AFTER INSPECTION
|
|
Percent of defects found and reworked at touch up (HMS)
|
|
50%
|
|
Number of defects found and reworked weekly at touch up
|
|
225
|
|
Cost of touch up per defect (HMS)
|
|
$0.75
|
|
|
WEEKLY COST OF TOUCH UP
|
|
$168
|
|
ANNUAL COST OF TOUCH UP
|
|
$8,757
|
|
REWORK AT FINAL TEST
|
|
Number of remaining defects per week after touch up
|
|
225
|
|
Percent of remaining defects identified and reworked at final test (HMS)
|
|
50%
|
|
Number of defects reworked per week at final test
|
|
112
|
|
Cost of rework per defect at final test (HMS)
|
|
$5.00
|
|
|
WEEKLY COST OF REWORK AT FINAL TEST
|
|
$561
|
|
ANNUAL COST OF REWORK AT FINAL TEST
|
|
$29,189
|
|
TOTAL WEEKLY COST OF TOUCH UP AND REWORK
|
|
$730
|
|
TOTAL ANNUAL COST OF TOUCH UP AND REWORK
|
|
$37,946
|
|
REPAIR OF FIELD FAILURES
|
|
Number of defects remaining weekly when PCBs are sent ot field
|
|
112
|
|
Percent of defects in field which cause field failures (HMS)
|
|
50%
|
|
Number of defects in field which cause field failures
|
|
11
|
|
Cost of repair per defect causing field failure (HMS)
|
|
$85.00
|
|
WEEKLY COST OF REPAIR OF DEFECTS CAUSING FIELD FAILURES
|
|
$954
|
|
ANNUAL COST OF REPAIR OF DEFECTS CAUSING FIELD FAILURES
|
|
$49,621
|
|
 |
|
