Electronics Forum | Fri Jul 23 09:01:36 EDT 1999 | Earl Moon
| HI Earl | Thank you for your answer. | Let me know you about the hot you mentioned | First of all, The rework machine is the BGA3500 (manufactured by 0.k international:U.S.A) | ��DESOLDERING HEAT :OVER 200��(CENTIGRADE),30SEC(CHECKED
Electronics Forum | Wed Sep 18 22:53:24 EDT 2002 | davef
Please give us background on your situation, so that we can focus on the specifics, for instance: * This is a bare board problem, correct? Then, this contamination causes what the problems in your process? * What is the type [ie, FR4, CEM1, etc] of
Electronics Forum | Fri Nov 27 08:07:50 EST 1998 | Earl Moon
| | | I have some 1.25 mils Al wire bonding chip on board process. After epxoy-based encapsulation, I do some aging test. How can I "see" or prove that there is a "wire break" exist due to the tension of thermal cycling? How can I know the failure is
Electronics Forum | Tue Jan 08 17:33:26 EST 2002 | davef
You didn�t identify the type of tape you use, but Kapton or similar tape is not an effective method for attaching thermocouples. Search the fine SMTnet Archives for alternatives and comparison of methods. Two methods for mechanically attaching ther
Electronics Forum | Thu Jul 22 21:48:21 EDT 1999 | kyung sam park
Does anyone have any experiences with bga reballing. When I had reworked failed bga part with new part It was good. So I tried to reball bga detached but failed . I guess the cause of fail is thermal shock. IS IT OK TO REBALL BGA PARTS DETACHED ?
Electronics Forum | Thu Jul 22 22:57:14 EDT 1999 | Earl Moon
| Does anyone have any experiences with bga reballing. | When I had reworked failed bga part with new part It was good. | So I tried to reball bga detached but failed . | I guess the cause of fail is thermal shock. | IS IT OK TO REBALL BGA PARTS
Electronics Forum | Mon Jul 26 15:09:31 EDT 1999 | APE South
| Does anyone have any experiences with bga reballing. | When I had reworked failed bga part with new part It was good. | So I tried to reball bga detached but failed . | I guess the cause of fail is thermal shock. | IS IT OK TO REBALL BGA PARTS
Electronics Forum | Wed Jun 12 03:26:03 EDT 2002 | edahi
We are currently having gross tombstoning with 0402 capacitors. We are using HiPb Solder Paste mounted on Laminate substrates. We are assembling Flip Chip BGA's. Temp @ Reflow is around 230-240 C to meet the thermal requirements for both die bump
Electronics Forum | Tue Dec 15 17:01:36 EST 1998 | Chrys
| Does anyone know what a TCP is? | What type of process is required for assembly, what type of equipment? | | Any help or resources on the subject would be greatly appreciated.. | | Thanks | Brain, TCP, or tape carrier package is the same as TAB
Electronics Forum | Thu Dec 24 13:29:19 EST 1998 | Chris Grendler
| | Anyone ever attach gold bump flip chip to FR4 or Alumina substrates. Am trying to find a solder which is acceptable for use on gold. Am worried about gold imbrittlement since the gold bumps on the flip chip are .004"x.004"x.001" solid gold. The
