Soldering of components with tiny space

[RJARRRPCGP]

I was wondering, how on earth can the SMD components that are on one of my old school HDDs get soldered! They look phenomenally tiny and it looks impossible to solder without getting solder bridges! Looks like you need to heat the PCB then stick the chips on!

The tinyness was killing my eyes!

The HDD I was looking at, is a Quantum ProDrive LPS 162 MB HDD, probably from the early 1990s.

[retiredcaps]

Re: Soldering of components with tiny space

I was wondering, how on earth can the SMD components that are on one of my old school HDDs get soldered! They look phenomenally tiny and it looks impossible to solder without getting solder bridges! Looks like you need to heat the PCB then stick the chips on!

The tinyness was killing my eyes!

I like these videos on SMD soldering by CuriousInventor

http://www.youtube.com/watch?v=3NN7UGWYmBY

[RJARRRPCGP]

Re: Soldering of components with tiny space

I like these videos on SMD soldering by CuriousInventor

http://www.youtube.com/watch?v=3NN7UGWYmBY

I was just watching one of the SMD soldering videos, before looking at the PCB, for the fun of it.

And looks like I need a magnifying glass!

[stj]

Re: Soldering of components with tiny space

a screen printer apply's the solder paste,
a mixture of powdered solder & flux.

then a robot puts all the bits on,

the the board passes through an oven filled with hot gas or with InfraRed heaters,

then the board goes through a washer to remove the flux.

then a small asian child fits it to the mechanical assembly.

[severach]

Re: Soldering of components with tiny space

Check Youtube for "How It's Made: Circuit Boards"

Then feast your squinties on pick-n-place machines.