Electronics Forum: 1a33 deg c (Page 9 of 44)

Lead Free Process

Electronics Forum | Thu Jun 21 12:05:54 EDT 2001 | brownsj

I used to assembly 0402 devices on to a double sided PCBA using a 96% tin 4% silver alloy. This material printed fine but the higher processing temperatures did present a problem. This material had a melting point of 221 deg C which required a peak r

problem when testing the RF product

Electronics Forum | Sat Jun 19 11:44:00 EDT 1999 | Vic Lau

Do anyone have any experience on assembling high frequency product, 1.8GHz or 2.4GHz. In our production line, we manufacture 1.8GHz product with using no clean paste (RMA type) for reflow and no clean wire for rework. In our functinal test,either at

High Frequency Product.... malfunction when using no clean paste

Electronics Forum | Wed Jun 16 08:56:34 EDT 1999 | Vic Lau

Do anyone have any experience on assembling high frequency product, 1.8GHz or 2.4GHz. In our production line, we manufacture 1.8GHz product with using no clean paste (RMA type) for reflow and no clean wire for rework. In our functinal test,either a

environment Operational deg-C and RH% for Paste Printer

Electronics Forum | Thu Jun 06 21:35:22 EDT 2002 | ianchan

Hi mates, 1) Firstly, thanks for everyone's reply to this thread. Cheers! 2) Secondly, Hussman69: sure u dun mean that blokes' tie was too tight? musta cut off his blood flow and oxygen?!? 3) Thirdly, we checked with our paste supplier, and they r

Baking components at 70 degree

Electronics Forum | Tue Jun 17 12:57:26 EDT 2008 | sleech

You are correct. For the 70 deg. C drying temperature to be effective, the relative humidity must be as near to zero as possible. A pulling a vacuum on the chamber is an inexprensive and reliable way to accomplish this. Contrary to some claims, our e

Flux appearance

Electronics Forum | Fri Mar 17 07:42:51 EST 2006 | vicknesh28

Copper is the base material for the lead. It's tin/lead plated. I finally got profile. Here are the parameters" Peak : 219 Max (+) Slope : 2.29 Max (-) Slope : -1.94 Time above 200 deg. C : 50s Time 140C - 160C : 126s Additional info : Stencil thic

Strange things ocuring during reflow...

Electronics Forum | Thu Feb 18 15:25:13 EST 2010 | spitkis2

An air temperature tolerance of +/- 3 deg C along a 200mm width would not play a significant role on the board's temperature due to its thermal mass. However if the air temperature varies by 10C along the conveyers width, I can see how a 5 degree va

Re: double sided step by step

Electronics Forum | Tue Oct 05 02:47:01 EDT 1999 | Eric

Hi everyone, I need some help on the whole process of double sided surface mount. We have been doing surface mount for about 3 months and we're getting ready to take on our first doule sided board. I just need some step by step process regarding so

Re: Climatic Controlled Facilities

Electronics Forum | Tue Jun 01 08:30:51 EDT 1999 | Dave F

I have difficulty to convince my management to air-condition our manufacturing facilities. The room temperature fluxuates from 8 deg.C in the morning to 25 deg. C in the afternoon. The PCB topside temperatures in the reflow oven and wave soldering

Re: Climatic Controlled Facilities

Electronics Forum | Thu Jun 03 18:53:27 EDT 1999 | Raeto Zryd

I have difficulty to convince my management to air-condition our manufacturing facilities. The room temperature fluxuates from 8 deg.C in the morning to 25 deg. C in the afternoon. The PCB topside temperatures in the reflow oven and wave solderin


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