Questions tagged [ipc]

IPC, the Association Connecting Electronics Industries, is a trade association whose aim is to standardize the assembly and production requirements of electronic equipment and assemblies.

IPC, the Association Connecting Electronics Industries, is a trade association whose aim is to standardize the assembly and production requirements of electronic equipment and assemblies. It was founded in 1957 as the Institute for Printed Circuits. Its name was later changed to the Institute for Interconnecting and Packaging Electronic Circuits to highlight the expansion from bare boards to packaging and electronic assemblies. In 1999, the organization formally changed its name to IPC with the accompanying tagline, Association Connecting Electronics Industries. IPC is accredited by the American National Standards Institute (ANSI) as a standards developing organization and is known globally for its standards. It publishes the most widely used acceptability standards in the electronics industry.

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‘One for all’ standardized land pattern v.s. specified land pattern in datasheet

I’ve designed lot of ‘simple’ PCBs for hobby and proof-of-concept purposes, but never for (mass)manufacturing. In order to do so in the future, and further expanding my design skills and knowledge, I’m exploring the different package outline…
Julien Roels
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Do I need to supply IPC documents to PCB fab house?

I would like to have a PCB design manufactured and plated with an ENEPIG finish. I have found a fab house that states they can perform ENEPIG finish and their site lists the plating option as one that is available. I asked said board house if their…
cjswish
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Why do KiCad's library footprints for 0402 resistors and capacitors have different pad sizes?

KiCad's default library footprint for C_0402 is longer than R_0402. Why?
pericynthion
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IPC Specification for pad width vs. pin width (SMD)

I am working on a board that has a fine-pitch component (0.35mm). Each pin is 0.15mm wide. I received a question from the manufacturer asking if they could adjust the pad width from 0.22mm to 0.18mm +/- 20% to allow a soldermask web between the…
DerStrom8
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Why there is IPC Level A and B?

Why there are IPC footprint Levels A and B? I believe it has to do with the standard related to tape and reel feeding, but I will appreciate a more elaborated answer.
mFeinstein
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Which IPC standard we should follow?

Our PCB designing team is of 5 members and we want to incorporate IPC standards in our designs from now on. We deal with a single-sided layer to 18 layers of PCB. We are into digital, analog, RF and mixed designs. We mainly want to use standards for…
MightyBeard007
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High Voltage Capacitor Lead Clearance

I am designing a high voltage board, 10,000 VDC. I wish to use a suitably rated capacitor such as the DHR4E4A102K2BB. When I have been studying the IPC-2221 and IEC 61010 standards the conductor clearance should be in the order of 0.00305 mm/volt,…
tomdertech
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Surface Mount package standards guide?

Is there a universal guide-line for the mechanical dimensions and tolerances of Surface Mount packages across the industry? I'm very new to SMT machine programming (<1 year), so I've been trying to look for a copy of JEDEC's JEP95 that wouldn't…
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Definitive land pattern for 0603 SMD capacitors?

So, I am trying to figure out what pad size to use for 0603 (imperial) SMD capacitors. The datasheet for the particular capacitors I plan to use provides part dimensions but does not recommend a land pattern. Googling, I found that the land pattern…
Andrei
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PCB trace height to width ratio

I came across the Isola IsoStack website that lets me test PCB stack-up using Isola substrates: https://www.isola-group.com/isostack My project is using a stripline design with a 1oz copper inner layer and trace width of 0.010". The tool calculated…
BrChan
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Which standard is used to inspect stranded cables secured to PCBA with RTV?

Does some one know what standard can be use for quality inspection on a PCBA that have stranded wires soldered and fixed with RTV? I check the IPC-A-610 Rev E and the most similar criteria, is in the section 7.2.2, but it is for Axial/Radial…
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Altium IPC Footprint wizard Generating Dodgy Components

I've started using Altium Designer 14 after a break and needed to build some components I started with a EP4CE10 FPGA, but I noticed that despite following the component guidelines as close as possible, I was generating rubbish. Is it possible some…
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Where can I find information about "Enhanced Policies and Procedures Exam" for IPC?

I'm taking the CSE test for IPC-J-STD-001 and at chapter 7.Certification Exam Overview, I can see that there are 3 types of tests. Policy and procedure test (10 questions) Closed book test (25 questions) Open book test (75 questions) Inside IPC's…
euraad
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Soldering a Reed switch upside down into a slot

I would like to solder Coto reed switch CT10-2540-G1 upside down into a slot. It would recede into the slot until the tips of the lead touched the pads. Is there an IPC standard regarding the minimum pad coverage that would be required? I kept…
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Should I use heat shrink tubing on solder connectors?

I learned soldering after IPC-J-STD-001 E during my apprenticeship 10 years ago and my instructor told me that you don't use heat shrink tubing on connectors, but recently I've seen a lot of this and some of my colleagues say that you should do…
Darkproduct
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