1. If PCB's are over stored, or the solder ability of your immersion tin is bad, you send all
your boards in stock directly to APL.
Advantage: Reduction of the carriage costs
2. Storage of the PCB's in the Customer's Logistics Stocking (CLS)
Receiving inspection after §377 (German Commercial Code)
Advantage: Reduction of the stock-holding expenses
3. Call-off order / order of the refresh - product
Stocking product is going into process „just in time“ (preterm 2-3 working days)
Advantage: smarttin®-Refresh arrives "as fresh as possible" at your customer
4. Before agreed delivery logistics (UPS, DHL, forwarding agency)
Exact delivery times and delivery deadlines
Advantage: AQL check with balancing line & outgoing of goods
By means of refreshing we are able to transfer PCB's (only with immersion tin finish) with soldering problems by post-tinning again into a solder able condition.
The refresh concept differs to the stocking concept only in one point: The PCB's to be pending for the storage are not uncoated copper, but already have a immersion tin finish. The reasons for refreshing on the one hand can be obsolescence of the coating or a general bad quality in solder ability.
Besides, the tinning expires in the „tin on tin procedure“ – the tin thickness rise follows in pure tin around 0,1 - 0,25 µm (in dependence of the intermetallic phase).
In cooperation with the Frauenhofer Institut ISIT we have proved in an investigation row that the copper interests of the intermetallic phase while post-tin-plating are extracted by the "refresh"-process and therefore the pure tin deposit is being increases again clearly in coating.
The process of refreshing is often cheaper than the new production of a PCB quantity. On this way expenses for your end user can also be saved. The storage and „just in time“ – balancing has the advantage for your customer that the product does not come again to an obsolescence and is "freshly delivered on the mounting line.
If you liked to know more about our refresh concept, please contact us HERE.
