General > General Technical Chat
Why are ICs/Semis black?
<< < (5/7) > >>
rdl:
I think it's mostly cost and light shielding. I know that when used to make paint carbon black pigments in general have the highest "hiding" power. White paint may need 20x as much or more TiO2 pigment (weight per unit volume) to achieve equivalent obliterating of the substrate.
eti:

--- Quote from: trophosphere on May 04, 2021, 03:20:43 am ---This is an interesting transparent DIP IC.

--- End quote ---

Gosh what a beautiful photo!
rsjsouza:
I used to have a demo isolated DC-DC converter from Burr Brown on transparent silicon. It was very pretty, as it had a small toroidal transformer in the middle of its DIP16 packaging. Unfortunately I lost it.
BrianHG:
Remember this thread: https://www.eevblog.com/forum/chat/why-are-most-semiconductor-cases-black/msg1632815/#msg1632815

IC / Transistor packages used to come in a rainbow of colors...
VK3DRB:
Quite a few variants of opto-couplers are WHITE.

A better question is why are all power cords black. It would be much smarter to make them different colours so at least you have a better chance of knowing which one is plugged in where in the cable mess under your table.

 
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod