Re: Product Audit - For Semiconductor Commodity supplier
Hi All,
Greeetings,
Any one here is involved/works in the semiconductor subcontracting(Tier 2) business
We are in a quandary. U see a lot of customers, audit us and all of them have their own intrepretation of product audit, especially the(Tier One) one supplier, who subcontract their manufactruing businesses to organizations like us.
As all the semiconductorains know( ha ha just coined a new word), the parts are tested, dimensions are measured and records maintained all along the processes. So what is the point of doing additional dimension measurements/ testing per defined frequency. Mind you, in the semiconducotor business, millions of parts are made daily.
Any feedback is welcome and much appreciated!!!
Thanks Athies
I am in the semincon too. We perform product audit on automitive product, selecting a lot of a device before it is shipped and going backwards.
In the shipping process we check if the labelling it is ok as per spec, storage procedure has been respected, packaging has been correctly done etc., looking at the control. Then we go backward, checking at sampling some point of the line ( whereas there are special characteristics) where the lot had eventually some problems, we check the reaction mechanism applied and so on. We review at sampling if the equipment where processed the lot had the qual well done etc, msa implemented etc... up to incoming where we check at sample some raw material if they have spec update, MSDS. In general we also review the associated PPAP if the documentation is ok (
FMEA update, process flow, MSA , Cp/CPK etc...). Review if there are some customer complaint open, check eventually the action
8D. All is related to that sampled selected lot of a specifi device under the scope of the product audit. The audit is above all at desk, but we also interview several process owner along all the process flow chart, but we also go in some areas where it is requested to see thing face to face ( I mean shipping, packaging, incoming...)
We put this in the internal audit program and planned it once annually. If there are issue we can increase the frequency.
ISO TS reuire to have 3 types of audit and if it is not included this, it is a non conformity. I agree with you about the control in line and at probing of the chip for seminconductor business, but the requirement is clear and it shall be meet.
At the end we make a report where we highlight strenghts and ncn that will be addressed al organization level.
