The Superconductive Circuit Board

How Copper Weight Impacts PCB Board Manufacturing

Posted by Paul Jackson on Mon, Nov 18, 2013 @ 09:37 AM

One of the critical steps when ordering a printed circuit board is specifying the copper weight.

The default, should you choose not to specify a weight, is 1.2 oz of copper. This is because customers routinely specify a minimum 1 oz copper thickness and 1 mil of copper in plated through holes. To achieve this, we routinely plate up .5 oz base material with .7 oz of additional copper which provides the requested thickness in the hole. Often our PCB board quotes will reflect this specifying .5 + .7 oz Cu/sq ft where the .5 is the base copper and the 0.7 is the plated copper.

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Tags: electrical engineering, PCB copper thickness, printed circuit board design

Understanding PCB Manufacturing: Multilayer Assembly

Posted by Paul Jackson on Thu, May 09, 2013 @ 11:28 AM

One of the more interesting activities routinely associated with PCB manufacturing is the process of assembling multilayer circuit boards.

At any given time 40% of our PCB manufacturing at Omni is producing multilayer circuit boards, so understanding the process is important. Layers of copper foil, prepreg and core material are sandwiched together under high temperature and pressure to produce multilayer assemblies. Pressure is needed to squeeze out air while heat is required to melt and cure the thermosetting “prepreg” adhesive which holds the multilayer PCB together.

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Tags: PCB copper thickness, printed circuit board design, printed circuit board manufacturing

4 Circuit Board Design Mistakes to Avoid

Posted by Paul Jackson on Sat, Jun 30, 2012 @ 02:03 PM

Avoid these four circuit board design mistakes

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Tags: PCB copper thickness, printed circuit board design

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Omni Circuit Boards is an e-sensitive manufacturer of Printed Circuit Boards.

Omni Circuit Boards has been in the printed circuit board fabrication business since 1985. It has been our goal to be as environmentally conscientious as possible.

We are committed to keeping our customers and the future of our children front of mind.

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