>> My company would like to implement an ESD program because we handle
>> electronic repair parts for our semiconductor capital equipment.
>> 1. Would you recommend having different levels of protection for
>> components in different HBM classes?
>> 2. We do not manufacture the parts and do not receive any technical spec.
>> sheets to determine which parts are ESD sensitive. How would you
>> recommend we go about determining which type of parts, in our list of
>> thousands of repair parts, are susceptible to ESD damage?
>> Creating a comprehensive list of parts or even types of parts seems
>> daunting, especially without convenient access to the technical
>> specification sheets.
Normally I would not recommend having diferent levels of ESD program unless there were highly different requirements in some areas, for example < 100V HBM parts handled in a specific area.
It can be very difficult to get ESD data. There is some generic information in our on-line ESD Guide .
You can assume that almost any semiconductor device, or pcb containing such a device, is ESD susceptible. The usual approach is to implement an 100V HBM ESD control program which would cover almost everything. However if you handle more sensitive parts, you need to identify these and may need very stringent handling measures.