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Week 18 Analysis
Week 18 saw another climb in functional performance with lot acceptance climbing to 80% from 73% in Week 17. Physical inspection results dipped to 67% in Week 18 from 70% in Week 17. The first week of May saw significant volume at $230,332.00 in purchase value.
Despite quite high volumes in Japanese product, failures were limited to the one lot of Toshiba TMPN3120FE5MG(I) devices.
An interesting one to look at is the Epson/Crystal devices, SPG8640BN. The SPG8640xx-series has different suffixes specifying different output frequencies.
Devices with different output frequencies had been remarked to the "BN" suffix, but electrical testing identified the different output frequencies, from the "AN" and "CN" suffixes, and even some devices with no output frequency (most likely damage from prior use or in handling when remarking). This is a classic example of remarking.
Mark A. Rinehart
Managing Director
White Horse Laboratories |
