Electronics Forum: packaging popcorning (Page 1 of 4)

Solder short-BGA with thermal pad

Electronics Forum | Mon Dec 30 13:52:50 EST 2002 | bcceng

Haran, This problem can also be caused if the BGA package is POPCORNING. Popcorning causes the BGA package to expand below the die, seen this happen so often to customers that try to install BGA's themselves without the proper handling of BGA's. Tha

Drying ICs any advice

Electronics Forum | Fri May 15 04:06:33 EDT 1998 | Alan Pestell

We had some failures on an IC package that the manufacturer has put down to moisture inside the package, leading to popcorning. This seems a bit odd, the package is a PLCC 84 which is quite thick. I have only seen this problem on thin packages. How d

Re: Drying ICs any advice

Electronics Forum | Tue May 19 02:59:46 EDT 1998 | P.L. Sorenson - Technical Consultant

| We had some failures on an IC package that the manufacturer has put down to moisture inside the package, leading to popcorning. | This seems a bit odd, the package is a PLCC 84 which is quite thick. I have only seen this problem on thin packages. |

What Will I See

Electronics Forum | Mon Jun 18 11:23:44 EDT 2001 | Gil Zweig

BGA defects observed with x-ray inspection fall into catagories. One catagory is the obvious defects; i.e. soledr bridges, missing balls, excessive solder voids. The second catagory is the more subtle "potential" defect. This is where variations in

BGA

Electronics Forum | Tue Dec 23 07:49:10 EST 2014 | robertwillis

the most common reason can be popcorning of the device or warpage of the packages during reflow. the distacnce from the boatom of the device is decreased hence the solder shorts. Trying doing some measurements on the package during simulated reflow.

Re: Drying ICs any advice

Electronics Forum | Fri May 15 14:41:25 EDT 1998 | Terry Burnette 512-933-5783

| We had some failures on an IC package that the manufacturer has put down to moisture inside the package, leading to popcorning. | This seems a bit odd, the package is a PLCC 84 which is quite thick. I have only seen this problem on thin packages. |

Re: Drying ICs any advice

Electronics Forum | Fri May 15 10:11:19 EDT 1998 | Justin Medernach

| We had some failures on an IC package that the manufacturer has put down to moisture inside the package, leading to popcorning. | This seems a bit odd, the package is a PLCC 84 which is quite thick. I have only seen this problem on thin packages. |

X-ray vs AOI

Electronics Forum | Mon Jun 18 16:48:00 EDT 2001 | Gil Zweig

We have found a significant number of PBGA problems associated with physical deformation of the package. Deformations such as dishing (potatoe chipping) and delamination under the die (popcorning). These can be detected by x-ray by the variation patt

Re: Popcorn effect with PBGA

Electronics Forum | Wed Apr 05 08:51:25 EDT 2000 | Wolfgang Busko

Emmanuel: Popcorn effect is mostly caused by entrapped moisture in the components package material. Plastic ICs are known for absorbing and storing moisture when exposed to normal factory conditions. They should be stored in an moisture reduced envir

Re: Drying ICs any advice

Electronics Forum | Fri May 15 10:06:28 EDT 1998 | Mike

| We had some failures on an IC package that the manufacturer has put down to moisture inside the package, leading to popcorning. | This seems a bit odd, the package is a PLCC 84 which is quite thick. I have only seen this problem on thin packages. |

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