Reflow PCB with WROVER on it?

MStackoverflow
Posts: 13
Joined: Mon Oct 07, 2019 4:55 pm

Reflow PCB with WROVER on it?

Postby MStackoverflow » Wed Aug 12, 2020 7:06 pm

Hi,

I'm getting a lot more into PCB design, but my work rate is very slow if I do everything by hand. I designed some custom PCB to fit an ESP32 WROVER-E on it.

In the manual , it says the absolute maximum rating is 150°C (storage temp).
If I put a PCB with a WROVER on it and I reflow the board at 165° top (low temperature solder paste), will it damage the board?

If yes, how do manufacturer make boards like HUZZAH or other dev boards?

If it work, how high I can set the temperature ? (Higher temp will allow for better solder paste)

Thank you.

ESP_Sprite
Posts: 4241
Joined: Thu Nov 26, 2015 4:08 am

Re: Reflow PCB with WROVER on it?

Postby ESP_Sprite » Thu Aug 13, 2020 7:33 am

Yes, during reflowing the Wrover can temporarily handle a higher temperature; the 'storage temperature' is more of a long-term thing. For details, refer to the 'reflow profile' in the datasheet.

MStackoverflow
Posts: 13
Joined: Mon Oct 07, 2019 4:55 pm

Re: Reflow PCB with WROVER on it?

Postby MStackoverflow » Thu Aug 13, 2020 5:52 pm

Thank you!

So, to reflow the PCB, do you recommend using paste that reflows at a lower temperature than the listed 235 ~ 250℃, or is a paste that reflows at the same temperature is fine?

ESP_Sprite
Posts: 4241
Joined: Thu Nov 26, 2015 4:08 am

Re: Reflow PCB with WROVER on it?

Postby ESP_Sprite » Thu Aug 13, 2020 7:42 pm

Sorry, no clue, I'm not that familiar with soldering processes.

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