Electronics Forum: ipc and 2221 (Page 11 of 28)

0201 Land Pattern and Aperture Shape Design

Electronics Forum | Thu Mar 10 09:13:15 EST 2005 | davef

From http://www.IPC.org ... IPC-7351 - Generic Requirements for Surface Mount Land Pattern and Design Standard The successor to the IPC-SM-782A is here! The document covers land pattern design for all types of passive and active components, includ

IPC Standard for Acceptable and Reject Criteria

Electronics Forum | Wed Nov 03 09:42:31 EST 2004 | dramos1

Hi Simon, Thanks for the immediate reply. We really appreciate it very much. Currently, we are using Class 2 for the visual inspection criteria of our telecom boards. In IPC-A-610 Rev. C criteria, there are TARGET, ACCEPTABLE and REJECT criterias.

warpage for 152mm length PCB

Electronics Forum | Thu Aug 09 07:53:16 EDT 2012 | davef

Allowable bow & twist: Together, both IPC-A-600G and IPC-6012B represent the core IPC documents for describing the acceptable and nonconforming conditions that are either externally or internally visible on finished printed boards. IPC-A-600G relies

Re: IPC Standards and ISO 9000

Electronics Forum | Wed Dec 06 21:06:29 EST 2000 | Dave F

Does "Dinah-Moe Humm" mean instant disqualification?

about thermocouple for refloe and rework

Electronics Forum | Tue Oct 17 21:14:14 EDT 2000 | hankey_cn

Who can tell me the IPC** about the thermocouple for reflow and rework? I'm waiting....

IPC Class II and Class III reliability

Electronics Forum | Wed Apr 09 09:36:18 EDT 2003 | iman

what r your test running parameters? what end-application?

Re: MSD in asembly and rework

Electronics Forum | Tue Mar 24 09:48:15 EST 1998 | Steve Schrader

| Do you know if there is an IPC standard or industry standard | that addresses the proper process for handling MSD's in the production environment....? (rework etc.) | Not the receiving area. | Thanks so much, | Robin Arnold | PCB Development | Har

IPC Class II and Class III reliability

Electronics Forum | Tue Apr 08 16:03:29 EDT 2003 | jonfox

MTBF is hard to nail down raw data based on whether or not it is classified as IPC CII or CIII alone. Given that most failures are environmentally based, you might be able to get this data for CII and CIII in similar environmental testing situations

IPC Class II and Class III reliability

Electronics Forum | Wed Apr 09 12:18:37 EDT 2003 | MA/NY DDave

Hi This is an excellent question or research project. I would call the IPC and find out if anyone has already done this work. My guess is that Class III should be slightly better, yet considering the application difference where Class III is used

IPC Class II and Class III reliability

Electronics Forum | Thu Apr 10 15:20:35 EDT 2003 | MA/NY DDave

Hi DaveyF, Thanks You see, you proved my point, with piles of more information than I gave. Based on Application rather than design and manufacturing specifications, a lower IPC class can out perform another. So our starting Poster must look at t


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