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Week 32 Quality Report



White Horse Laboratories has been publishing our Weekly Quality Reports since 2009, which are a listing of the devices that have had over 5% lot failure in electrical testing or the buyer has rejected the lot following results of inspection methods

While this list does not imply that the balance of devices within a lot are defective, and is not exhaustive (for example, a 5% failure rate may be too high or some buyers may accept devices in a physical condition that others would not), it is intended to an indicator as to what is going on in the market and is a reminder to be aware of the risks of sourcing without adequate quality control measures in place.

Week 32 

Inspection Accept 

70%

 

Electrical Testing Pass

75%

This Week in The Lab...
Week 32 Substandard Parts List
Substandard Parts Archive

                                   
White Horse Laboratories' Quality Report

Week 32 Quality Report

Substandard Parts List
                           

Altera EP4SGX230KF40C4N (Date Code 1437) - 100% Failure Rate - Program error that cannot access JTAG chain.

 

Xilinx XC9536-10VQG44C (Date Code 1237) - 14% Failure Rate - Program error and version is "0000".

 

Altera EP1C6F256I7N (Date Code 1241) - 14% Failure Rate - Program error via JTAG and AS mode.

 

Texas Instruments LM2576SX-ADJ/NOPB (Date Code 1440) - 25% Failure Rate - Forward Breakdown Voltage, Vfb, and Output Voltage (Vout) outside of manufacturer specifications, low and high (see below).

 

LM2576SX-ADJ Failure
Texas Instruments LM2576SX-ADJ/NOPB Failure - Vfb (1.217V < Vfb < 1.243V) and Vout (4.930V < Vout < 5.035V) measure outside of manufacturer specifications.
                                                      
Weekly Report Archives
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Substandard Parts Lists dating back to 2009


White Horse has been publishing Weekly Quality Reports since 2009. Now we open those archives to you.

 

Simply click on the Weekly Quality Report page on our website and then click the "View our Archive" button to see each posting from 2009 thru 2015.


We hope you find this report informative and usefull for your organization.

 

All the best,

Mark A. Rinehart
White Horse Laboratories
Notes:

1. Statistics are calculated as a percentage of all lots dis-positioned within the given time period.

2. "Accept" is defined as customer acceptance of report device condition.

3. "Pass" is defined as meeting electrical parameters defined by the agreed upon test plan.