Electronics Forum: apertures (Page 4 of 151)

blocking off stencil apertures with tape

Electronics Forum | Wed Oct 10 13:49:12 EDT 2001 | stepheno

I recently started at a new company. They have a variety of bare PCB's and most have aprox. 20 variations. Maybe about 1/3 of each board on average are non-populated locations. They buy one stencil for each PCB but then use scotch tape to block of

blocking off stencil apertures with tape

Electronics Forum | Mon Oct 15 17:28:14 EDT 2001 | Brian W.

Boy, does this sound familiar. I agree with Dave, especially his point about board side taping. The kapton tape has a thickness of approximately 2mils. You artificially increase your paste thickness with this method. It also can be a cause for br

blocking off stencil apertures with tape

Electronics Forum | Mon Oct 15 23:40:43 EDT 2001 | kenbliss

One thing everyone missed is what is the goal of the company. To make money!!! So how many boards per week are you shipping now and how many would you be shipping if you had seperate stencils or a DISPENSER. With quality being number one always the

blocking off stencil apertures with tape

Electronics Forum | Wed Oct 10 20:35:17 EDT 2001 | djarvis

Stephen, I don't understand this at all mate. 1. If you don't place a QFP and get bridging across the bare pads, you were gonna get absolutely horrendous bridging if you did put one down. That points to poor printer set up or stencil design or both

blocking off stencil apertures with tape

Electronics Forum | Wed Oct 10 20:54:32 EDT 2001 | davef

We're with the Ozzy's earlier posting on this thread. We make similar products, like: * Phantom products that are mostly complete and then are configured to order by adding or subtracting a couple of parts and some jumpers. * Version products like y

Why are square apertures better than round ones?

Electronics Forum | Wed Apr 28 02:02:03 EDT 1999 | Joe Cameron

Hello all, I read about Steve's headache a few articles back and I'm really interested by his tip. However, I'm still wondering why square apertures release solder paste better than round ones. For the same volume of paste, the surface area of the

Re: Why are square apertures better than round ones?

Electronics Forum | Wed Apr 28 04:26:24 EDT 1999 | Nigel Burtt

| Hello all, | | I read about Steve's headache a few articles back and I'm really interested by his tip. However, I'm still wondering why square apertures release solder paste better than round ones. For the same volume of paste, the surface area

omit stencil apertures to hand solder or paste, reflow then solder.

Electronics Forum | Tue Feb 25 10:30:02 EST 2020 | richardcargill

If you get the stencil made with all apertures included then you can blank some off with sellotape. Saves you buying 2 stencils should you require them machine fitted in the future

omit stencil apertures to hand solder or paste, reflow then solder.

Electronics Forum | Tue Feb 25 11:56:33 EST 2020 | slthomas

I think I'd opt for a stencil with everything already cut and then tape it if that didn't screw up your stencil gasketing. Then you just have to define the process for adding the optional parts and you can decide to use those apertures or not.

omit stencil apertures to hand solder or paste, reflow then solder.

Electronics Forum | Tue Feb 25 18:36:03 EST 2020 | emeto

Flat surface is the number one choice for fresh part soldering. We did not discuss details about resistor size and location, but to keep them flat I will suggest no apertures on the stencil.


apertures searches for Companies, Equipment, Machines, Suppliers & Information

2024 Eptac IPC Certification Training Schedule

High Precision Fluid Dispensers
Sell Used SMT & Test Equipment

High Throughput Reflow Oven
Software for SMT

World's Best Reflow Oven Customizable for Unique Applications
SMT spare parts

500+ original new CF081CR CN081CR FEEDER in stock