PCB Manufacturer = The company that manufactures blank PCBs for you, Omni Circuit Boards Ltd is a "PCB Manufacturer"
PCBA Manufacturer = The company that manufactures an assembled or populated PCB for you, also known as CMs or contract manufacturers.
First the legal requirements: quotes form an integral part of the traditional, legal, offer and acceptance contract process.
When you receive your quote, it is your responsibility to review the specifications provided.
D-Wave Systems Inc. turned to Omni Circuit Boards to help them build the first "Superconductive Aluminum-Trace Printed Circuit Boards" that serves as interface with their QPUs (quantum processing units)
While some customers are investigating frontiers in MEMS (Microelectromechanical systems), others are delving into the inherent superconductive properties at milliKelvin temperatures, while still others are exploiting the radiation response characteristics of aluminum. For the R&D personnel at Omni Circuit Boards, the requests have presented some interesting challenges.
Given that we are leaders in Immersion White Tin PCB fabrication here at Omni, it goes without saying that we are heavily in favor of its use.
To understand why, you first have to understand the reason behind our preference for white tin in the first place.
Traditionally, printed circuit boards have been finished with a coating of material to protect them from oxidation and allow for components to be soldered onto them in a reliable consistent way, this is usually specified to as "PCB Finish" and requires the use of Lead (HASL) and vast amounts of water during processing (All other PCB finish types).
For short runs, the flexibility of quick set-up ensures cost effective Flying Probe tests outperform the lead-time, cost and fixed designs of dedicated test beds.
With Flying Probe tests, no fixtures need to be prepared, only data files.
Flying Probe tests are able to reveal not only shorts and opens produced by the manufacturing process but have also been known to expose design errors.
They may not feel comfortable down mouthing the competition in public but a process? Well that’s fair game. What the salespeople don’t know or won’t tell you is the Immersion Tin used as a finish for circuit boards completely dissolves in the solder used in the circuit board assembly process.
You need to consider thermals and antipad (solder mask) clearances on the power &/or ground plane layers of multilayer boards during design. If layer to layer registration, tolerances for hole size, location, film expansion and registration have not been taken into account then manufacturing will experience high reject rates and increased costs.
Vancouver, BC, January 7, 2015 University of British Columbia Department of Materials Engineering and Omni Circuit Boards have been awarded an Engage Grant (EG) through the National Sciences and Engineering Research Council of Canada.
Vancouver, BC, January 13, 2015—
Omni Circuit Boards Ltd.
announced today the signing of a research and development agreement with D-Wave Systems Inc., the first commercial quantum computing company, in support of the further advanc ement of aluminum trace printed circuit boards (Al-PCB) for quantum computing applications.