Electronics Forum: x-ray (Page 86 of 101)

Thermal Pads Soldering Worry, can anybody help?

Electronics Forum | Thu Jul 20 23:41:55 EDT 2017 | heros_electronics

Below is an email that I copy and pasted from my customer's engineer about his concerns with the issue of the chips not reflowing (which is why I was asking about X-ray the chips to make sure they reflowed): Can you let me know your thoughts on his

QFN welding problem by reflux oven 10 zones

Electronics Forum | Tue Feb 11 13:22:22 EST 2020 | rgduval

Sebas, I suspect that your finding of needing the fillet for the card to work is a false finding. One that I dealt with for many years in assembly. As a bottom terminated device, a fillet to the side terminals of the device is not required. Adequ

PIHR Inspection Criteria

Electronics Forum | Thu May 17 07:36:40 EDT 2001 | Bob Willis

Here is a copy of a draft document on PIHR Inspection I have jotted down on a flight to Scotland yesterday, any comments suggestions etc ? I have already most of the photos for the standard but as you know there is nothing in the IPC document it just

pbga substrate crack vision system

Electronics Forum | Thu Sep 24 18:57:03 EDT 2009 | davef

From "siliconfareast.com": Basic Die Cracking FA Flow 1) Failure Information/Device and Lot History Review. Understand the customer's description of the failure, i.e., the failure mode, where it was encountered, what conditions the sample was subject

Re: Process Change

Electronics Forum | Thu Jun 03 10:09:59 EDT 1999 | Earl Moon

| In a month or so, we will be getting an in-line x-ray inspection machine. It will require that we solder our most comlicated side (normally top) first. This is opposite to our process now where we solder our passive (bottom) side first. We cann

Re: Process Change

Electronics Forum | Thu Jun 03 10:53:09 EDT 1999 | Ryan Jennens

| | In a month or so, we will be getting an in-line x-ray inspection machine. It will require that we solder our most comlicated side (normally top) first. This is opposite to our process now where we solder our passive (bottom) side first. We ca

Re: Process Change

Electronics Forum | Thu Jun 03 12:31:30 EDT 1999 | Dave F

| | | In a month or so, we will be getting an in-line x-ray inspection machine. It will require that we solder our most comlicated side (normally top) first. This is opposite to our process now where we solder our passive (bottom) side first. We

Re: Process Change

Electronics Forum | Thu Jun 03 13:00:16 EDT 1999 | Earl Moon

| | | In a month or so, we will be getting an in-line x-ray inspection machine. It will require that we solder our most comlicated side (normally top) first. This is opposite to our process now where we solder our passive (bottom) side first. We

Re: Process Change - Mascots????

Electronics Forum | Thu Jun 03 14:06:16 EDT 1999 | Dave F

| | In a month or so, we will be getting an in-line x-ray inspection machine. It will require that we solder our most comlicated side (normally top) first. This is opposite to our process now where we solder our passive (bottom) side first. We ca

Re: Process Change - Mascots????

Electronics Forum | Thu Jun 03 15:19:14 EDT 1999 | Earl Moon

| | | In a month or so, we will be getting an in-line x-ray inspection machine. It will require that we solder our most comlicated side (normally top) first. This is opposite to our process now where we solder our passive (bottom) side first. We


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