Electronics Forum | Thu Oct 26 17:48:47 EDT 2000 | Dave F
In response to your questions: 1) Suggestions on substrate material FR-4 or something better? Most PBGA are on BT. That might good for you, also. 2) Are there design guidelines for wire bonding pattern on the substrate? Several things: 1 Doesn�t
Electronics Forum | Wed Dec 29 15:42:34 EST 1999 | Mike Naddra
Justin, I would be currious as to your customers application, and if the temperature delta and rate are great enough to cause solder joint failures as a function of mismatched Tce then you may want to consider that even if you are able to identify
Electronics Forum | Thu Jun 25 11:47:39 EDT 1998 | Steve A
| Hi there, | Does any one know what is TCE for fully wet saturated FR4. I came to know that for Dry FR4 the TCE is about 15-19 PPM �C. Is that true? | | Appreciated for your help. | rgs, | chiakl Chiakl, It looks like you are speaking of what could
Electronics Forum | Thu Nov 07 09:23:05 EST 2002 | russ
What would the considerations be in utilizing a type 4 paste as opposed to type 3? We have an assembly that has a large amount of uBGAs (12 mil diam pad)along with 50 mil pitch BGAs assorted fine pitch etc... We are experiencing difficulty in paste
Electronics Forum | Mon Mar 05 13:35:04 EST 2012 | acsscott
Figured out that you have to press Ctrl & Enter to get this screen to come up. Also, to remove the LCS, you need to remove the "Y" cable to the left of the control box in the bottom of the Topaz X. All works well now, but still can't get it to load
Electronics Forum | Tue Feb 28 17:45:56 EST 2012 | acsscott
So, got the Topaz X up and running. It has (4)FNC nozzles on 2, 4, 6, 8, and (4)74A Nozzles on 1, 3, 5, 7. We are trying to optimize it to pick up 8 components, then move over the camera, then to the PCB and place them. In the Mount data, we load
Electronics Forum | Tue Jun 06 13:19:27 EDT 2023 | oxygensmd
It is really strange you don't have EKRA on your list. EKRA are really good for protos and mass-production too. We have E5, X5 and two X4Prof. X4Prof are lasting forever if you handle and maintenant them properly. ESP001 and Simplex softwares have t
Electronics Forum | Tue Feb 16 16:25:18 EST 1999 | Tuffty
| We use both F4G and MCS at the present and we are phasing out MCS. One main reason is that it's platform is not Y2K compliant. F4G is cumbersome and taxes a high overhead on your computer system. We have also found a bug recently when we have hi
Electronics Forum | Mon Nov 09 09:44:22 EST 2015 | davef
Purpose. This describes setting-up a wave soldering system set-up for a new assembly design or checking a wave solder machine operation with a test board. Applicability. To be used for new design printed circuit assembles and during machine accept
Electronics Forum | Thu Feb 17 22:30:09 EST 2000 | Dave F
Alberto: There's no rules, but it works sorta like this: RESISTORS Usually marked in ohms using a standard code: First two numbers is the value Third number is the multiplier 102 = 1.0 x 10� ohm = 1000 ohm = 1 kW CAPACITOR Usually not marked. When
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