Electronics Forum: hole (Page 296 of 318)

Buying 1 or 2 Post reflow AOI and 1 Pre reflow AOI

Electronics Forum | Fri Nov 06 07:46:33 EST 2015 | clampron

Good Morning RedChilli, I have worked with Mirtec for quite a few years. I have looked at some of the other machines mentioned but have no practical experience with them. I started with the Mirtec MV-2 (long ago)due to the success of this platform,

Hi anyone have recommended pcb manufacturer?

Electronics Forum | Wed Aug 02 01:09:33 EDT 2017 | heros_electronics

Hi anyone have recommended pcb manufacturer? My > require: quick delivery time; best > quality; affordable price; best service; PCB > Assembly provided recommend http://www.heros-electronics.com, which is a one-stop pcb and assembly manufacturer

DIMM connector area with poor solderability

Electronics Forum | Tue Nov 22 21:57:17 EST 2016 | Miche

Hello Dears, I'm a small CS Engineering at Taiwan.There are some problem on DIMM connector area with poor solderability at ODM. It was random on Dimm connector area and the SMT area is fine. At the same time, there were other PCB vendor's product whi

how to learn PCB design

Electronics Forum | Mon Jul 08 22:03:39 EDT 2019 | eddy2019

Many beginners do not know how to start learning hardware circuits. In fact, the "hardware circuit" is composed of a part of the "unit module circuit". The so-called "unit module circuit" includes: various regulated power supply circuits (like the LM

Thermal Pads Soldering Worry, can anybody help?

Electronics Forum | Tue Jul 25 07:37:21 EDT 2017 | stephendo

There are lots of examples of changing a parameter in one direction to fix one issue causes a different problem. Once I asked a layout engineer to adjust thermal relief for through hole parts. First he said ok but a day later he said that he couldn't

Metcal CV-5210 Solder Station

Electronics Forum | Fri Apr 05 07:17:40 EDT 2019 | jchris

We evaluated the Metcal CV-5210 and found that while it is a solid iron, the "Connection Validation" features were so quirky that our operators had to completely turn off the CV features. When Connection Validation was enabled, we had a massive amoun

Step-up stencil: recommendation thickness

Electronics Forum | Mon May 20 16:15:48 EDT 2019 | davef

Resources are: * IPC-7525A - Stencil Design Guidelines, 3.5.2 Step-Up Stencil This type stencil is useful when it is desirable to print thicker solder paste in a small portion of the stencil. An example would be a ceramic BGA where it is necessary t

Pin in paste connectors and lead-free questions

Electronics Forum | Mon Jul 22 09:53:13 EDT 2019 | kylehunter

Hey all! As background, I recently purchased a full SMT line for my company. We have a DEK 265, an assembleon opal xii, and a Heller 1500. Currently our jobs are leaded, and the heller is working perfectly. An upcoming job that we are potentially g

New Facility Advise/Questions

Electronics Forum | Fri Dec 27 12:53:38 EST 2019 | rgduval

yeah...I never had airflow volume problems with Hellers. When I had to build the system I was referring to, we had an old Speedline oven, and the way it was configured if you didn't provide enough airflow to the outer cavity, the blowers would overh

Pin headers

Electronics Forum | Wed Oct 20 14:34:29 EDT 2021 | korb23

1 1 I work for a small company as an apprentice. We build mostly mass produce double sided PCBs. We are having trouble keeping the pin headers flat to the PCB through the reflow oven process. The first side is pasted through a printer and populate


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