You can use a burnishing pen, scratch brush, or fiberglass pen. It looks like an eraser pen but has fiberglass brush bristles come out. It’s much more precise, gentle, and safe than a knife, dremel, or sandpaper. Just pretend it’s an eraser. Normally used to scrape away oxidiation and rust.
Leggi di più: Assemblaggio PCB a foro passante
#Assemblaggio PCB
C'è una colata di rame su tutta la parte superiore del mio PCB, che fa parte della rete GND. Si scopre che i LED da 1 W montati su superficie che utilizzerò hanno il nucleo termico collegato internamente al terminale +ve del LED. Posso fare affidamento sulla maschera di saldatura per isolare la tensione +ve (~3V circa) da GND? Lungo termine?
According to IPC-7351, the cathode should be on the left for a molded diode. però, when I use component wizard of my suppliers to create a diode, it places the cathode (K) on the right. Does it depend on the manufacturer? How does the assembly house know which way is correct?
My project have gone through from design, prototype to mass production after lots of discussion and adjustment. Now the manufacturer are making our products in their product lines. And I would like to know is there any differences between the prototypes in my hand now and the final products output by the manufacturer?
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