Electronics Forum: bent pcb (Page 3 of 4)

Solder Open/Mild Tombstone on 1206 LED

Electronics Forum | Thu Aug 21 14:38:32 EDT 2008 | Paul M.

I have had a similar problem as this. But, not on that particular type of component. Have your machine place the component, take the PCB over to a microscope and look at the part how it sit's on and in the paste on the pads. You might see that one

Paste-in-Hole reflow soldering

Electronics Forum | Wed Aug 09 08:46:48 EDT 2006 | pavel_murtishev

Good afternoon, Take my word, bent THT leads will surely cause problems with manual/automatic component insertion, and surely will create voids in solder joints. As a rule, PIH components are placed by hand and good PIH THT manual component placemen

Alternate Solders/methods of flex attachment to pcb's

Electronics Forum | Tue Mar 21 19:34:32 EST 2006 | Tom Smykowski

Omar: I dealt with this so called "hot bar" process also, and you're right; it's neither reliable nor repeatable. The goal was to attach a flex LCD display to another flex circuit. The flex LCD was constructed of resin and conductive silver particl

Who of you experts can tell me the history of SMT?

Electronics Forum | Fri Nov 23 07:57:45 EST 2001 | wbu

Hi William, well I guess SMT was invented accidentally when for what reason ever (be CAD related or PCB shop related) those PCB�s with no drillholes at all appeared in the assembly. Ah, you know these fella�s who are never short of a quick solution

Re: Alpha's Tetra Stencil System

Electronics Forum | Mon Jun 14 03:54:32 EDT 1999 | Charles Stringer

We have been using Alpha Tetra/DEK Vector for the last 3 years. Prior to that we were using mesh on frame. We do about 15 job changes a day and our main runners are loaded about 4 times per week. In the three years we have been using the system we h

Re: Alpha's Tetra Stencil System

Electronics Forum | Mon Jun 14 06:15:18 EDT 1999 | wayne sanita

| We have been using Alpha Tetra/DEK Vector for the last 3 years. Prior to that we were using mesh on frame. | We do about 15 job changes a day and our main runners are loaded about 4 times per week. In the three years we have been using the system

Re: Alpha's Tetra Stencil System

Electronics Forum | Mon Jun 14 15:05:10 EDT 1999 | John Thorup

| | We have been using Alpha Tetra/DEK Vector for the last 3 years. Prior to that we were using mesh on frame. | | We do about 15 job changes a day and our main runners are loaded about 4 times per week. In the three years we have been using the sys

Re: Alpha's Tetra Stencil System

Electronics Forum | Tue Jun 15 18:02:53 EDT 1999 | MMurphy

| | We have been using Alpha Tetra/DEK Vector for the last 3 years. Prior to that we were using mesh on frame. | | We do about 15 job changes a day and our main runners are loaded about 4 times per week. In the three years we have been using the sys

Re: Popcorn @ reflow

Electronics Forum | Thu May 20 18:08:57 EDT 1999 | DEON NUNGARAY

| hello...can somebody help me regarding the POPCORN at Reflow. What is this POPCORN at reflow, what it looks like, its cause and corrective action if there is... | | your help is greatly appreciated...thanks | | omat marasigan | Deon Response:|

Re: Board Stress

Electronics Forum | Wed Jan 20 10:03:10 EST 1999 | Earl Moon

| I need some opinions (And I know everybody has one). | I am mounting a board into a case, after mounting the board | I am loading it with stress in the middle causing it to bend around .030 inch. The board is 4" X 6" and is Bending in the 4" dire


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