Recent content by GunT

Thanks CompositePro

Compositepro, My understanding is that plating racks are usually dipped in a liquid plasticized PVC (Plastisol) and later cured. Its primarily a dip coating process. So the question becomes "Does dipping coating process provide uniform, precise tolerances for Si Wafers to sit on?"

TVP, I appreciate your feedback. I have posted on Finishing.com, but yet to receive any replies. I would check out pfonline.com. Thanks, GunT

Hi, I am researching materials for Plating Racks/Jigs. The racks will be used to carry very delicate Si wafers with a Seed Copper layer. I am looking for a exhaustive list of materials (for both conductor and insulator) that are comaptible with: Acidic Copper Plating solution Acidic Tin...

Thank you both for the replies. I have contacted Dupont and other plastic manufacturers about the chemical compatibility. They are using "Chemical Resistance Guide for Plastics" by Compass Publications as reference. I have access to that book too. But we are having a discepancy between what the...

Hi, Hi, I have posted the same post at Chemical Engineering Forum. So I apologize for the duplication. But there was no response in that forum so I am posting it here. I am looking for compatible plastics (PFA, PTFE, ECTFE, PVDF, PEEK, TFM) with: 1. 25% Tetra Methyl Ammonium Hydoxide- TMAH...

Hi, I am looking for compatible plastics (PFA, PTFE, ECTFE, PVDF, PEEK, TFM) with: 1. 25% Tetra Methyl Ammonium Hydoxide- TMAH aqueous solution at 90 deg C 2. 25% TMAH solution in methanol at 90 deg C 3. 25% TMAH squeous solution + small amount of Glycidol Ether (surfactant). I appreciate any...

Hi, Thank you all for the wonderful advice. I am trying to play with the Animator/PhotoWorks to produce the animation. It may take me awhile to do it. But starting this endevaor made me realize something ( most of you might already know this). I spend a lot of time thinking about the design...

Hello all, We are Automated Process Equipment Manufacturer loacted in Bay Area,CA. We want to do a motion animation of our assembly which consists of 3174 parts @ 30 MB file size. But the file size of the folder that includes all the parts and sub-assemblies to open the assembly accounts to 262...

Cbarn, Thanks for replying to my post. But looks like thats also not helping much.

We are turning the controller on before releasing the brake.

I have already submitted this post in another forum. I apologize for repeating it here. We are an equipment manufacturer. We are using 2 axis Linear transfer for pick and place of the product. The vertical axis has brake motor and we are controlling using a PLC. Whenever we are disengaging the...

We are an equipment manufacturer. We are using 2 axis Linear transfer for pick and place of the product. The vertical axis has brake motor and we are controlling using a PLC. Whenever we are disengaging the brake, to start the vertical motion, the robot is free falling for 1/4" before the...

He said it makes it easier for him to read if it is on the RHS of the screen. I don't know if its true or not. Just trying to accommodate as much I can. Cheers,

Yes they have been converted to the installed version.