Electronics Forum | Tue Jan 13 19:16:03 EST 2004 | pjc
Dedicated tooling uses what MPM calls an "H" tower. You mount the board support plate (dedicated tooling) on top of the H tower. If boards are only single-sided SMT, meaning only components on one side, the board support plate is flat with vacuum hol
Electronics Forum | Thu Jan 15 10:08:54 EST 2004 | ADAM
Guys Does anyone have any design rules for a 121 pin BGA . The pitch is 0.031 thou, the ball diameter is 0.0115 thou . I would like to know the following : Pad and via sizes/type on the bareboard ? Stencil thickness and aperture size/sytle ? Solder
Electronics Forum | Mon Mar 01 23:37:49 EST 2004 | Bill Ladakos
I would recommend trying a Board-lok Tooling support fixture. In my opinion, no other tooling support system or fixture compares to the type of support board-lok provides. They can manufacture the board-lok with many options such as vacuum, tooling p
Electronics Forum | Tue Mar 30 10:43:21 EST 2004 | Robert
I could use some help too. I have a bunch of SMD 4 Pads Inductors from Central Technologies. The dimensions of the part is 11.30x13.9x6.9 . I've called four companies already and none were able to find a carrier for this part. These parts are on plas
Electronics Forum | Tue Apr 13 03:39:49 EDT 2004 | Hung
HI fraser, Well, technology is a element that you can't stop BUT keep improving, as I will suggest that you need to make more reseach on what yoyr need first, make a clear study thn more in. By the way where your location are? We are a new s
Electronics Forum | Mon Jul 12 17:32:53 EDT 2004 | Petros
Can anyone tell me if the Panasonic K-style green emboss 08x04 feeders can be used interchangably with the white paper ones? If so what is the importance of the push pin and are there settings in the machine that need to be changed? Also is this (whi
Electronics Forum | Thu Jul 15 13:41:23 EDT 2004 | Claude_Couture
We use paper tape in green emboss feeder without problems. But you can't use emboss tape in white paper feeder because the bottom of the tape needs a channel so the tape is supported on two side. Also, we remove all push pins. they are useless. We ne
Electronics Forum | Sat Jul 31 23:17:48 EDT 2004 | Bryan Sherh
Hi,Please 1.X-ray your board where you found pinholes.perhaps you'll found much voids in your joints,but not only the pinhole.this must be caused by the poor solderability of PCB mostly...or components. 2.Cross-section the pin hole or void in the joi
Electronics Forum | Fri Jul 23 06:48:23 EDT 2004 | mattkehoe
I am actually getting opinions that point to contaminated copper under the HASL finish. We've seen some "fish eyes" where the HASL is pulled away from the copper exposing a pin hole of copper that can be seen through the HASL finsh. We are planning o
Electronics Forum | Tue Aug 10 06:58:48 EDT 2004 | dka123
dear all, kindly guide me for the use of space electronics hardware assembky of PQFPs and Cqfps, how to form the flat pack leads, bend for 240 pins of 20 mil pitch and what are the Mil standards for them.how to cut the lead guards.can we use FP5 elit
