Silicone based products from Dow Corning

A global leader in silicones, silicon-based technology and innovation, Dow Corning offers more than 7,000 products and services.

Silicone based products from Dow Corning

Silicone based products from Dow Corning

“Xiameter is a web-enabled global silicones supplier. With Dow Corning reliability, Xiameter offers more than 400 commonly-used products online”

Silicones from Xiameter – the Global Silicones Supplier

“Silicones have found use in HBLEDs for many critical needs – providing electrical and environmental protection, increasing light-extraction, minimizing heat build-up and forming lenses that provide options for specific light distribution patterns and intensities.”

High Brightness LED Tutorial

 

Silicones are polymers that include silicon together with carbon, hydrogen, oxygen, and sometimes other chemical elements.

Silicone at Wikipedia

Frederick Kipping was the chemist who pioneered the study of the organic compounds of silicon (Organosilicons), and invented the term silicone.


You know that Silicones play an important role to electronics manufacturing. When you want to Insulate a Power Device from the heatsink, Silpad is used in place of Mica. In some situations, where a higher temperature is expected, Mica or Alumina is inevitable, but these are fragile.

Silicone shrink sleeves, Silicone Insulating Sheaths or Surfaces, provide good electrical insulation and Thermal stability to survive in the industrial environment.

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.

The Expert 10.6 rework stations

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

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

Molex Connectors – Interconnect Solutions

“Never Mix Electrical and Mechanical Connections” (probably from tektronix) this is a rule, more so for power connectors. Strain relief prevents mechanical stress from reaching the connector joints/spring metal. The wire terminations are also cushioned by strain relief.

The PCB and Product Engineering should ensure that the mechanical stress or load is not a job/function/role of the connector. At higher currents a small contact resistance can generate a lot of heat, worsening the contact further, similar to thermal runaway of Power Transistors.Sealed SFP Assemblies - Molex

Leading one-source supplier of interconnect solutions. Over 100,000 reliable products, including everything from electronic, electrical and fiber optic interconnect solutions to switches and application tooling.

Molex Connectors – Interconnect Solutions

Molex’s Sealed SFP Assemblies have smaller footprint on your pcb. The Sealed SFP – Small Form-factor Pluggable, assembly is an optical and electrical-integrated connection system, environmentally rugged interface. The Industrial SFP receptacle features a panel feed-through design incorporating an internally-mounted SFP cage and related electrical circuitry.

Sealed SFP Assemblies – Molex – formerly named “Industrial SFP Assembly”

Basic Connector Engineering – Overview of connector technology and applications – Molex Tech Library

The Connector:By Molex – A blog where the connector experts connect to communicate. From Molex.