Electronics Forum: through and hole and scrape (Page 8 of 10)

Re: Pin Hole/Blow Hole - Causes and cure please

Electronics Forum | Thu Jun 24 12:43:08 EDT 1999 | Earl Moon

| | Recently, there has been an upsurge in the Pin Hole/Blow Hole problem in our wave soldering process. We are baking the PCBs for 2 Hrs. at 125 degree C. The Wave Soldering profile seems to be O.K. Still the problem is persistent. Can somebody h

Re: Splicing tape for 8,12, and 16mm component tapes

Electronics Forum | Thu Jun 04 11:13:39 EDT 1998 | Justin Medernach

| Looking for vendors of splicing tape for 8,12 and 16mm tape and reel. | Any net sources? Mike, Give Siemens a call. They have a decent little system. It's comprised of thin metal fasteners that hold the carrier tape together via the holes, a crim

DIP insertion and Axial insertion old equipment poka yoke

Electronics Forum | Thu Jan 23 17:24:08 EST 2020 | rvines1

Due to couple of customers who still have some products that are completely through-hole, we use our Universal DIP and Axial equipment on a somewhat regular basis. Our machines are pretty old, but they work pretty well, and we don't do enough throug

Re: Pin Hole/Blow Hole - Causes and cure please

Electronics Forum | Fri Jun 25 01:11:31 EDT 1999 | Vinesh Gandhi

| | | Recently, there has been an upsurge in the Pin Hole/Blow Hole problem in our wave soldering process. We are baking the PCBs for 2 Hrs. at 125 degree C. The Wave Soldering profile seems to be O.K. Still the problem is persistent. Can somebody

IPC Class 3 Annular Ring and Fine Pitch BGA Challenges

Electronics Forum | Fri Sep 08 21:49:24 EDT 2017 | sbar5781

Hello, I have a few PCB boards i am trying to be manufactured that are miniaturized medical devices. Thus they require IPC Class 3 Specs. However as miniature devices they have limited space, including a 0.4mm pitch BGA socket, which currently has

help to id and purchase pcb transformer from LOWRANCE GPS

Electronics Forum | Sat Jun 25 15:20:03 EDT 2016 | skipper6567

I have a mini/micro transformer that is mounted on a pcb inside my lowrance gps/plotter. I have removed it from the pcb. It has 5 through hole pins, 3 pins out bottom one side and 2 pins out bottom on opposite side. The transformer has yellow tape ar

DIP insertion and Axial insertion old equipment poka yoke

Electronics Forum | Thu Jan 23 18:34:15 EST 2020 | slthomas

It's hard to poka-yoke loading reels onto the machine (either a inserter-sequencer or a sequencer, then getting the sequenced reels properly indexed). The only way I know of to make sure they've been set up properly is with visual inspection of EVERY

Wave Solder Balls, VOC-Free Flux, and Glossy Mask

Electronics Forum | Tue Oct 03 18:41:16 EDT 2006 | C.K. Flip

With recent implementation of VOC-Free flux in our shop, we've experienced little solder fines/balls on the above combo of VOC-Free, Water Based, and glossy to semi-glossy mask finish on PCB's. The solder balls show up on close conductor spacings, ~

Pick and Place Startup - LQPF100 bridging issues

Electronics Forum | Tue Mar 23 23:17:12 EDT 2021 | llawrence

Hello everyone, I work for a company that, up until now, has done everything using through-hole components. This has been fine for years, but we have been pushed into the world of surface mount manufacturing by a new product that is far cheaper and

DPMO calc and Overall Manufacturing Index (OMI) calculations

Electronics Forum | Tue Aug 28 13:46:46 EDT 2001 | mparker

To clarify on "Opportunities"- With 1000 components, the opportunities are far greater than 1000. You have 1 opportunity per component for a component defect i.e. bent lead, damaged part, tested bad, etc. You have a second opportunity per component


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