Ipc 4552

You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Your Alert Profile lists the documents that will be monitored. The key items of this new acceptance scale are as follows:. Containing full-color photographs, this specification sets the requirements for the use of ENIG as a surface finish for printed boards.

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Skip to main content. There are 3 levels of corrosion detailing automatic acceptance, automatic rejection and a level that further testing is required to prove acceptance or rejection of the sample.

We have no amendments or corrections for this standard. Your Alert Profile lists the documents that will be monitored.

ENIG Per IPC-4552

Acceptable - This activity will not degrade solder joint integrity. The inspection will be performed at X optically. Containing full-color photographs, this specification sets the requirements for the use of ENIG as a surface finish for printed boards.

Proceed to Checkout Continue Shopping. The key items of this new acceptance scale are as follows: It includes requirements for ENIG deposit thicknesses based on performance criteria.

Hyper corrosion testing of ENIG per the requirements of the IPC 4552A

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. This could be a surface mount feature, a fiducial or an annular ring and may be on a specific coupon design or a portion of an actual circuit that is being evaluated in cross section.

This standard is not included in any packages. You may delete a document from your Alert Profile at any time. It is noted that some coupon clean up 5452 necessary prior to evaluation. Please first log in with a verified email before subscribing to alerts.

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ENIG Per IPC | Unitech Plating

As the voice of the U. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. It has been the experience of S T and S that the truth lies somewhere between these two extremes and as such pushed for the adoption of a corrosion level acceptance scale by the IPC.

Level 2 Hyper-Corrosion - Knee of Hole. It is important that good edge retention of the plated surface be maintained by the potting compound, failure to do so will make inspection and documentation very difficult.

Hyper corrosion testing of ENIG per the requirements of the IPC A | ST&S Group

Already Subscribed to this document. The issue with hyper corrosion of ENIG and its acceptance or rejection has been an issue since the adoption of this surface finish. Subscription pricing is determined by: The End User of the part has attempted to reject even a single occurrence of hyper corrosion while the chemical supply base has argued that extensive levels of corrosion are still acceptable and will produce a reliable solder joint.

This standard is 45522 available to be included in Standards Subscriptions. The key items of this new acceptance scale are as follows:.

Less than ten spike type defects observed on most pads [1]. If it cannot be seen at X then it is not rejectable. If corrosion is suspected when viewed in a top down evaluation then a sample must be taken without gold stripping and evaluated as a cross section.

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