Electronics Forum: rework (Page 186 of 293)

Reparing 0201 components on PCB-boards

Electronics Forum | Mon Nov 12 16:11:59 EST 2001 | davef

Listen. Reworking 0201 is too expensive. Here�s watt yado � * Cut the lil� suka between the pads on the board using side cutters. * Flick each piece from its pad, after melting the solder with a standard soldering iron. * Solder the terminations

AMP Mictor

Electronics Forum | Wed Dec 05 18:22:14 EST 2001 | gbarrows

I assembly boards that have 200 each of the MICTOR connectors. The boards are .300" thick. I have 100% solder fill in the holes. I also have developed a rework process so I can remove and replace the connectors if the they get broken by my custome

Micro Leadless Frame - solder wetting control

Electronics Forum | Thu May 09 18:06:42 EDT 2002 | bcceng

janchan, don't know how many LGA's/LCC/BCC's you are placing but a short term solution that I can recommend is the application of solder bumps to the component and than place it after board has gone through reflow or even at the same time. Our compa

Temporary Stencil for MPC555 PBGA

Electronics Forum | Mon May 27 18:16:28 EDT 2002 | Carol Stirling

Hi, I'm looking for Temporary Stencils to assist placement using a Sniper Rework Station. The PBGA is a MPC555 Motorola with 272 pins. The ball map shows 4 populated outer rows, then 16 balls in the centre of an open, unpopulated area. Could I g

Comparison between Glue & solderpaste process

Electronics Forum | Thu Jun 20 10:48:56 EDT 2002 | Hussman69

When you ask for data in terms of rework, do you want reflow solder yields versus wave solder yields? Or do you want repair data from each process, or yield data that shows actual glue defects from screen printing versus solder paste screen printing

Comparison between Glue & solderpaste process

Electronics Forum | Thu Jun 20 19:27:28 EDT 2002 | surinder

Hi Dave, I am agree with you,but one of my customer want to know the difference in terms of rework/Quality,if we go for Glue process in place of solder paste and want to see some data We have board ,which have Through hole components and smt comp. on

Soldering BGA

Electronics Forum | Tue Jun 25 07:12:46 EDT 2002 | Daan Terstegge

Because BGA's are so hard to rework, you'll want the maximum process window for your reflow equipment, and this includes an inert atmosphere. But as long as solderability and temperature profile are well controlled you can have perfect results with a

How to clean white residue

Electronics Forum | Mon Jul 01 00:09:47 EDT 2002 | Ben

Hi all How can I clean the white residue between QFP 0.5 mil Pitch? The white residue was created from mistake adding liquild No-clean flux Lonco 23F for reworking clean board. I can clean almost of it by using EC7M cleaning solvent except between

Hand Solder Defect Rate

Electronics Forum | Tue Jul 23 14:55:06 EDT 2002 | colnat

I am looking for defect rates on hand soldering. Specifically - I have a large number of wire jumpers that need to be hand soldered across two boards (connectors are not an option). I am looking for a defect rate so I can perform a cost analysis in

How to run SMT production with low defects

Electronics Forum | Thu Aug 15 15:44:46 EDT 2002 | dragonslayr

You can't control what you don't measure. You have provided very little detail other than post reflow costs are high. What defects are attributed to problems experienced prior to reflow? Are these random or recurring defects? You will need to put ea

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