Electronics Forum | Thu Apr 09 22:32:58 EDT 1998 | Lou Silverstine
We are tring to locate a 9 segment LED & dectector array. It is used in a coin reader to measure the diameter of a coin. Any help in locating such an array will be highly appreciated.
Electronics Forum | Fri Mar 21 20:24:13 EST 2003 | msimkin
Has anyone had success in soldering these devices, in particular devices from a company callede Pycomp. They are 8 way 0402 sized terminations. I have experemented with the printing process, placement verification & reflow profile. Unfortuanlty, I am
Electronics Forum | Tue Apr 07 19:36:41 EDT 1998 | LEON MARTIN
WE ARE TRING TO LOCATE A 9 SEGMENT, INFRARED EMITTER ARRAY & 9 SEGMENT INFRARED DETECTOR ARRAY. THEY ARE USED IN A COIN READER TO MEASURE THE DIAMETER OF THE COIN. THE SIZE OF THE ARRAYS ARE, 1.6 BY .297 INCHES. ANY HELP WILL BE APPRECIATED.
Electronics Forum | Sat Jul 29 02:46:33 EDT 2006 | rogerw_tech
hi everyone what does ball grid array and pin grid array mean? thank
Electronics Forum | Sat Jul 29 09:10:16 EDT 2006 | davef
Ball Grid Array (BGA). A surface mount technology leadless package with the connectors to the board placed in an array on the bottom of the package. They are attached to the board with tiny balls of solder placed on each contact. Pin Grid Array (P
Electronics Forum | Fri Jul 14 16:32:55 EDT 2023 | calebcsmt
Does class 2 vs class 3 PCBs effect variance/tolerance in terms of actual positioning of pads/traces? For example, if fiducial is to be at 10mm. What's the tolerance for class 2 vs class 3? [variance allowed] Does panelization have any effect on t
Electronics Forum | Tue Jun 05 12:12:19 EDT 2007 | SWAG
We do not recommend array sizes. PCB houses take a single board and turn it into a step/repeat that is best fit for their process = cheaper boards I suppose. We then approve this array and build programs and tooling to match. On occasion, we recei
Electronics Forum | Wed Oct 03 12:02:04 EDT 2001 | kjwaskow
We are getting solder blobs forming in open areas of the BGA, between the center array and outer array. THe ceter array balls are starved of solder, so they are presumably the source. The theory we hold is possible moisture causing the solder to mo
Electronics Forum | Tue Jun 11 07:15:16 EDT 2019 | SMTA-John
From what I understand, in the PCB Info window that first pops up when you open CEditor, the number of fids is multiplied by the number of arrays. So if you have a 4-up panel and you enter No. of Arrays = 4 and No. of fids = 2, the machine will look
Electronics Forum | Tue Apr 27 12:32:53 EDT 1999 | Frank Hinojos
What is the current spec for sizing PCB pads for a land grid array? How about for a ball grid array? Are there industry spec's I can reference? Thanks, Frank
