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Let PNC Simplify Your Printed Circuit Board Design With, CPLDs
New product designs continue to get more compact, while the performance and the number of features that customers expect continue to increase. To the engineer, this means higher PCB circuit densities and less room on the PCB for just-in-case design, such as unallocated I/O, or 0 ohm resistor networks to allow for reconfiguration of the PCBs at PCB assembly [1]. Meanwhile, new product prototype cycles are also getting faster. 3D printed mechanical parts are available within hours, putting pressure on electrical engineers to work faster and get their PCB designs [2] right the first time. Even the fastest PCB fabrication, such ...
Printed Circuit Board thickness considerations and requirements
How Do You Select a Printed Circuit Board Thickness? Selecting the correct PC Board [1] thickness for your product requires balancing of three often competing aspects of the design: manufacturability, electrical performance and mechanical constraints. Modern PCB fabrication techniques at PNC give the PCB designer great flexibility in specifying the PCB lamination stack-up and gives them the option to design a PCB in a thickness other than the typical choices of .031”, 062” or .093”. Manufacturing considerations in selecting a PCB thickness To understand how to specify PCB thickness, it is important to understand how PCBs are fabricated. Most multilayer PCBS from 2 ...
Acceptability Criteria of Printed Circuit Board, what standard do you use?
[1] As a printed circuit board [2] manufacturer, PNC Inc [3]., Nutley, NJ, our criteria of acceptability during the inspection process is determined by IPC–A–600. The scope of this document describes the acceptable and non-conforming conditions of a bare boards either externally or internally during the final inspection process. The inspection criteria is then broken down into three classifications of acceptability, Class I, Class II and Class III. Each class’s acceptance criteria is then again broken down into three areas, target condition, acceptable, and nonconforming for the imperfections in question. At times there can be a disconnect or confusion between the ...
Board on Board with Ventilation Tunnels
Over the past two years, we have been seeing some really innovative and high Tech PCB layouts. One case in general, was a Board Design that incorporated multiple ventilation tunnels within the layer structure of a Board on Board application. What is Board on board? The application was to mount 4 pieces of laminate together, with ventilation tunnels, over the top of a Double sided Board without air leakage between the layers. Our biggest obstacle was to figure out how not to fill the vent tunnels with pre-preg during the lamination process. After reviewing this Design, our staff came up ...
PNC INC.
Visit our Capabilities [1] and Facility list [2] pages to get a more detailed view of PNC. To meet growing needs of our customer using SMT boards, we started our Laser cut SMT Stencil Division [3] in 1998. Unlike a normal cloth mounted stencil, we have come up with our own unique patented ACCUFRAME® [4] which is a reusable frame. For more information on our Stencil making services, visit our STENCIL page. [1] https://www.pnconline.com/blog/capabilities.php [2] https://www.pnconline.com/blog/facility.php [3] http://blog.pnconline.com/stencil.php [4] http://blog.pnconline.com/accuframe.php