Electronics Forum: solder bump height (Page 1 of 83)

Solder impurity tester

Electronics Forum | Fri Mar 05 19:18:47 EST 2004 | Ken

bump

Void in solder bump

Electronics Forum | Thu Jan 14 23:49:00 EST 1999 | Wirat Sriamonkitkul

I saw the problem of void in solder bump or in lead less component or some BGA. But I didn't have standard specification of that void is accept or reject? Do any body have the better idea or suggestion of the criteria ? Thank you, Wirat S. / Jan 15

Re: Void in solder bump

Electronics Forum | Fri Jan 15 08:09:56 EST 1999 | Jason Hall

| I saw the problem of void in solder bump or in lead less component or some BGA. But I didn't have standard specification of that void is accept or reject? Do any body have the better idea or suggestion of the criteria ? | | Thank you, | Wirat

Re: Void in solder bump

Electronics Forum | Fri Jan 15 08:11:34 EST 1999 | Jim Nunns

Our spec on voids is 30% ball diameter in the center. On the component to ball and pad to ball interface, we use 25%. To determine this spec, we asked around. I don't know of any studies that have been done to verify if this is OK Regards Jim |

Re: Void in solder bump

Electronics Forum | Fri Jan 15 15:29:03 EST 1999 | Jason Hall

| Our spec on voids is 30% ball diameter in the center. On the component to ball and pad to ball interface, we use 25%. To determine this spec, we asked around. I don't know of any studies that have been done to verify if this is OK | | Regards | Ji

Re: Void in solder bump

Electronics Forum | Fri Aug 06 10:27:05 EDT 1999 | Kenneth Hedman

| | I saw the problem of void in solder bump or in lead less component or some BGA. But I didn't have standard specification of that void is accept or reject? Do any body have the better idea or suggestion of the criteria ? | | | | Thank you, |

Re: Void in solder bump

Electronics Forum | Fri Jan 15 13:35:03 EST 1999 | Terry Burnette

| I saw the problem of void in solder bump or in lead less component or some BGA. But I didn't have standard specification of that void is accept or reject? Do any body have the better idea or suggestion of the criteria ? | | Thank you, | Wirat

Re: Void in solder bump

Electronics Forum | Fri Jan 15 09:27:18 EST 1999 | Earl Moon

| I saw the problem of void in solder bump or in lead less component or some BGA. But I didn't have standard specification of that void is accept or reject? Do any body have the better idea or suggestion of the criteria ? | | Thank you, | Wirat

Re: Void in solder bump

Electronics Forum | Sat Jan 16 03:06:36 EST 1999 | Wirat S.

| | Our spec on voids is 30% ball diameter in the center. On the component to ball and pad to ball interface, we use 25%. To determine this spec, we asked around. I don't know of any studies that have been done to verify if this is OK | | | | Regard

Soldering problem on BGA with SAC105 bump

Electronics Forum | Tue Mar 04 06:33:38 EST 2008 | reypal

The attached photo from cross section. (like head in pillow)

  1 2 3 4 5 6 7 8 9 10 Next

solder bump height searches for Companies, Equipment, Machines, Suppliers & Information

Circuit Board, PCB Assembly & electronics manufacturing service provider

Stencil Printing 101 Training Course
Solder Paste Dispensing

Software programs for SMT placement and AOI Inspection machines from CAD or Gerber.
High Throughput Reflow Oven

World's Best Reflow Oven Customizable for Unique Applications
SMT feeders

Smt Feeder repair service centers in Europe, North, South America