Electronics Forum: magazine and for and pcb (Page 1 of 6)

BGA and QFP orientation in trays for pick and place

Electronics Forum | Fri Feb 06 03:56:47 EST 2004 | JaMi Smith

BGAs and QFPs packaged in Trays are oriented with Pin 1 or corner A1 oriented towards the Pin 1 identifier on one corner of the Tray, which is usually identified by a chamfered corner. The Trays themselves are usually governed by JEDEC Registered Ou

PCB land pattern for RC0402 and CC0402

Electronics Forum | Wed Sep 24 04:18:12 EDT 2008 | gang

we have some problems in soldering joints such as insufficient solder and misalignment on some RC0402 and CC0402,i don't have a pic here. our SMT enginner doubts the PCB land pattern is at the fault.here is what we measured results.pad length:0.9mm,

PCB land pattern for RC0402 and CC0402

Electronics Forum | Mon Oct 06 02:24:35 EDT 2008 | gang

thank you very much

Adhesive Spray for testing and trim P&P

Electronics Forum | Mon May 14 09:35:21 EDT 2018 | directx995

Hello everyone, A few days ago I design one special kind of PCB for testing accuracy of our Pick and Place machines. (for trimming, calibrating, NPI etc.) I am looking for adhesive spray, to apply it on PCB (at the moment I'm using double sided tape

PCB land pattern for RC0402 and CC0402

Electronics Forum | Fri Sep 26 12:19:09 EDT 2008 | davef

For the IPC Land Pattern Viewer, look here: http://landpatterns.ipc.org/default.asp

Terms and Conditions for Built-to-Print Jobs

Electronics Forum | Wed Mar 12 09:31:55 EST 2003 | MA/NY DDave

Hi Greg, You sound like a buyer or procurement professional. Everything you listed is OK, and more or less. Quite often Engineering Design or Product Management in the OEM establishes what they feel are some of the basic T&Cs. I guess I would ask

Required humidity for SMT production and storage

Electronics Forum | Thu Apr 12 00:56:20 EDT 2007 | Jani

Our SMT production and storage area is air-conditioned, constant temperature is maintained but the humidity is not controlled , the raw SMT material is stored in a "Drier" cabinet, but since we assemble hybrid SMT and thru-hole PCB assemblies, the SM

Suggestions for small and handy connector for in-circuit program

Electronics Forum | Mon Oct 24 09:07:58 EDT 2016 | robl

Could you make up your own adaptor cable to connect to your programmer, then fit a small form connector like a Firewire on the edge of the PCB? It should only take up about 7x7mm of real estate as opposed to a 2.54mm 5x2 pin header 12.7 x 5.08, or a

What were your top go-to sources for electronics information and learning in 2018

Electronics Forum | Tue Nov 06 10:28:58 EST 2018 | davef

Media Links IPC Global Insight This weekly electronic newsletter includes IPC news and multimedia information on manufacturing and management best practices and solutions, new technologies, standards, government relations and environment, health and

Re: Looking for URL that explain about SMT and COB

Electronics Forum | Thu Dec 14 19:54:23 EST 2000 | Dave F

SMT Magazine has "SMT In 10 Easy Steps or "Back To Basics" or something like that on their site that is a good starting point. If you want the one line definitions SMTnet has a "Terms & Definitions" in the "Library" You could ask us.

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