Showing posts with label Electromechanical. Show all posts
Showing posts with label Electromechanical. Show all posts

Wednesday, January 04, 2017

Bot as SMD Soldering Aid

I need a Bot to help me with soldering. Years of looking at Monitors and Double Clicking Mouse, have taken their toll .

Please develop a Camera/Monitor assisted Soldering/Desoldering Workstation. The Miniature Soldering iron manipulated by a Joystick into position and then press the fire button, a tiny blob of solder paste lands on the Junction on Focus. Now press the fire again, a Perfect Shiny Soldered Joint.

2016  - There is a solution from Martin that is close to what i had in mind.

The Expert 10.6 rework stations facilitates the reliable and precise rework of BGA-, CSP-, and QFN-components, connectors and sockets. Innovative technologies

Rework Station EXPERT 10.6

What we need is a Desktop Aid for SMD prototype fabrication and SMD Card Repairs. Not for manufacturing. To be used by Design Centers and Service Centers.

The card to be populated or repaired can be moved in X-Y-Z axis using  a PC. The Soldering Tool and the adhesive and paste dispensing tool should sync with the PCB Position. Then Soldering and Desoldering should be automated by the machine with camera, after Package type is keyed in. It is a Hands Free Soldering machine with the PC Monitor and HD Camera helping the visualization of the Job

delabs 2004

Sunday, August 14, 2016

PCB Prototype by Cu Deposition and Sn Plating

Take a Blank Epoxy Card. No Copper, just the glass epoxy card. It will not be copper clad. I am trying to explain the concept. The Glass Epoxy card as you know is Epoxy (Like Ciba Araldite) with glass fiber as filler. Maybe new technologies have come now. The fiber is for Reinforcement and Epoxy you know is a Marvel of an Engineering Material.

EE Design Library - Electronic Product Design Resource.

PCB Prototype by Cu Deposition and Sn Plating

PCB belongs to AVR JTAG adapter - MadWizard.org

In those days some people told me that these epoxy with glass fiber and iron flakes as powder are used to repair aircraft/spacecraft. It could be cast into a shape and even turned on lathe for making custom replacement components.

This nudged an idea, If we Screenprint a Mixture of Epoxy + Fine Iron Dust + ? over the blank Glass Epoxy card. The positive is used not the negative. That means Pads and Tracks on Positive create an Image of Pads and Tracks of this Epoxy/Iron paste on Glass Epoxy surface. Now Screenprinting done, let it dry. We can also be print a thin layer of epoxy pcb pattern and blow iron dust on it.

Dip this Printed Epoxy card with this iron/epoxy pattern; into a Copper Sulfate CuSO4 + ? + ? Solution. The ? has to figured by chemical engineers. I used to be good at Organic and Inorganic Chemistry, when i was young. The copper replaces/plates the iron powder and with some electrostatic and electrochemical methods the copper layer grows over the entire tracks and pads quickly. Now the card is Tin Sn plated to complete.

A single Prototype PCB is ready and no extra copper wasted. Copper and Tin was deposited.

2004 - delabs Notes