Electronics Forum: viewing (Page 4116 of 7890)

bulk feeding chips

Electronics Forum | Fri Feb 21 14:20:56 EST 2003 | jseagle

Has anyone actually seen 0402 or 0201 part with the value on it? I haven't. So what would be the big deal if these parts are placed upside down. The only difference I have noticed is usually on a resistor one side is black and the other is white an

double sided reflow criteria

Electronics Forum | Mon Feb 03 18:37:28 EST 2003 | jonfox

Not to be off-topic, but push engineering for embedded passives and remove parts from the underside all together. Watch the material cost sky rocket, but watch the manufacturing cost sink and well as improve the production cycle by 50%. Sorry, I w

double sided reflow criteria

Electronics Forum | Tue Feb 04 09:12:40 EST 2003 | davef

Near the top of Phil's front page is thin blue bar with white lettering that extends horizontally across the page. Click on the word "articles" on that blue bar. It will turn a rusty-brown and load another page. On that page, click on the article

Tombstoning in Vapor Phase Process

Electronics Forum | Mon Feb 03 23:55:58 EST 2003 | MA/NY DDave

Hi If this is the tombstoning I know which is evidenced by parts touching each other and some obvious colored material at the edges just wash them again real good. Now you might want to do some IR tests just in case you will have a reliability hit.

0402 stencil design

Electronics Forum | Wed Feb 05 13:56:40 EST 2003 | davef

I figure if you need the rest, you don't need these. These strips are from some laser cutting tool fabricator. They give them to their customers [laser cut stencil fabricators] so the customer can do a good job. Yall have a nice day now, y'hear?

Ceramic capacitors cracking

Electronics Forum | Tue Feb 04 14:05:10 EST 2003 | bradlanger

I am haveing some trouble with ceramic capacitors breaking on a couple of boards I am running. The boards I have trouble with are in a 6 up and 12 up array and the caps are near the score lines where the individual boards are broken apart. Has anybod

Ceramic capacitors cracking

Electronics Forum | Wed Feb 05 12:14:55 EST 2003 | slthomas

Increasing the score depth enough to make manual depaneling safe may very well make the panel useless, depending on your automated processes and handling requirements and methods. We use depanelers daily, hourly, even. We prefer to route the boards

Ceramic capacitors cracking

Electronics Forum | Mon Feb 24 19:16:38 EST 2003 | Neil

Brad, This is a common problem and may relate to the design of the board. In all cases when a device such as a capacitor is place near the edge of the board and the board must be de-panelled, the capacitor must be parallel to the break line. If the

Streckfuss C036 Axial Lead Former

Electronics Forum | Tue Feb 04 19:53:50 EST 2003 | joeherz

Hello All, I've come across this machine and have no experience with Streckfuss other than the little radial "trim only" unit. Does anyone own one of these? Good, bad, ugly? The one I found is going for $2.5k and has a good selection of dies.

tcm3000 miniature bearing servicing

Electronics Forum | Tue Feb 04 21:49:29 EST 2003 | Bach Huss

We have TCM 3000 in house. The problem is we have alot of nozzle bypass (up-down) problem due to the miniature stroke bearing looses it's librication or dust collected in the bearings. Anyone has any idea what grease or lubricant that can be applied


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