Programming the ESP32 efuses in mass production in China

[shachar.flycatcher]

Hi,
Following the discussion in https://www.esp32.com/viewtopic.php?f=2&t=19334
We are nearing mass production and trying to find a vendor in China to do our eFuses burning for us.
I am unable to get clear answers from Espressif themselves - as opposed to their statement in their website below they don't seem to provide the service of burning the eFuses, nor can they provide me a contact of a 3rd party vendor who does that.

https://www.espressif.com/en/products/s ... g-services :
"Customized Flash Programming >> Espressif undertakes the programming .... a chip's built-in flash, as well as into eFuse (for ESP32 and ESP32-S series), during the manufacturing process. .... This way our customers can simplify and speed up their manufacturing process."
So they publish in the website that they provide this service - please chase her for and get the answer if they can do it.


Has anyone got Espressif to burn the eFuses for them? Can anyone provide a 3rd party service in China who does that?
I can always do this In Circuit after the chips are soldered to the PCB as I do in the lab, however I am looking for something more in the scale of mass production, at the packaged IC level, fast and low cost.

Any comments are welcome

Thanks,
Shachar