I have inquiry from my big client of supply to him preprogrammed ATMegaXXXX in TQFP pack. It is intended for final assembly on PCB with another SMD parts and standard reflow soldering.
Code is mine and I have idea to ship programmed/protected by me chips rather than shipping twice ready boards for programming.
This is of course normally done with DIL package in socket but here is very small board and automated assembly.
In Atmel materials I can't find information is Flash and EEPROM content erase or corrupted in higher temperature when soldering. All I find is typical temperature range.
Is it all possible?
Have anybody such experience? Or helped link?
Best regards, Szymon