-1
votes
1answer
73 views

melting ic epoxy casing

I was attempting to remove solder with faulty solder braid (there was no flux in the section I was using (for some reason...)), and I kept the soldering Iron on it for far longer healthy. Now the ...
9
votes
1answer
406 views

How does soldering affect the internal bonding between the IC die and its package?

In other words, How does the IC fabricator solder these thin wires between the die and the pads and guarantee that the soldering iron temp (300C for example) on the IC pads won't desolder them?
1
vote
2answers
92 views

How does one reuse a thick film circuit?

I have a thick film circuit from a calculator that I want to use. How can I attach external connections to the sheet? I tried simply using the circuit as a contact in between a battery positive and an ...
2
votes
1answer
81 views

Heating and Chilling ICs instantly from 200C to 0C? Does it damage the silicon inside?

I soldered VCXO oscillator and suddenly tried to cool it down with a cooler spray. Do you think that sudden cooling and heating damages the chip. The heating and cooling were well within the spec ...
1
vote
1answer
489 views

Soldering IC directly to stripboard

I picked up my first "from-scratch" DIY electronics project in a long time, building a 2-tone door bell on stripboard with a basic 555 circuit. For the most part everything went well. I assembled the ...
1
vote
5answers
368 views

Is it possible to solder or otherwise connect to this camera chip by hand?

[Disclaimer: I'm a beginner.] I ordered this OV7740 camera chip from Digikey without really researching it, thinking maybe I could connect to it with a microcontroller. (I have only Arduino at this ...
2
votes
1answer
497 views

How to start implementing your own computer? [closed]

The question As a first step I need to select a circuit board, CPU & RAM/ROM chips and I/O connectors. How do I select a board that can interconnect all these components? Perhaps you could give ...
4
votes
3answers
390 views

Using ICs from old computer hardware and such

Like many other users of this site, I have tons of old computer parts laying around my house. Often I enjoy looking up the numbers on the ICs on these old parts to see what they do, and every now and ...