Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
10/20/09 15:09
Read: times


 		 #169907 - This applies to BGA's as well
Responding to: ???'s previous message
You can't hand-solder BGA's either, nor can you "ring out" the connections with a continuity tester, since you can't get at all the contacts.

There are some adapters that bring TQFP contacts out to 0.1" (2.54mm) spaced contacts suitably located for wire-wrap on a standard wire-wrap board. Those are probably the easiest to use. Unfortunately all "general purpose" adapters provide one problem, namely poor power supply bypass capability.

RE


List of 49 messages in thread
TopicAuthorDate
Cost of micros            01/01/70 00:00      
   check out mouser.com , digikey.com farnell.com etc            01/01/70 00:00      
      checked out...            01/01/70 00:00      
         UK - beware!            01/01/70 00:00      
            UK-Specific: Digikey update            01/01/70 00:00      
   In the UK            01/01/70 00:00      
   Freebies!            01/01/70 00:00      
      Atmel representatives            01/01/70 00:00      
         RS components            01/01/70 00:00      
            surface mount TFQP packages            01/01/70 00:00      
               Dev Board            01/01/70 00:00      
                  One proviso            01/01/70 00:00      
            TQFP ?            01/01/70 00:00      
               Lots of people solder BGA too            01/01/70 00:00      
                  not so fast, Per ...            01/01/70 00:00      
                     Note that link was about hobbyists            01/01/70 00:00      
                        That's been tried ...            01/01/70 00:00      
                           Don't upgrade "possible" into "better than"...            01/01/70 00:00      
                              That's worth a whole thread in itself - and a FAQ            01/01/70 00:00      
                              That wasn't my point, actually ...            01/01/70 00:00      
                     re: bgas            01/01/70 00:00      
                        It's all in what you prefer, I guess            01/01/70 00:00      
                           having once dealt with those U.S. houses            01/01/70 00:00      
                              No ... we've been using houses in the PRC            01/01/70 00:00      
                              Ooops! - double post ...            01/01/70 00:00      
                           jeebus            01/01/70 00:00      
                              If you have specifics, then name 'em            01/01/70 00:00      
                                 names            01/01/70 00:00      
                  This looks good            01/01/70 00:00      
            QFP/TQFP SOCKETS?            01/01/70 00:00      
               QFP/TQFP SOCKETS - EXPENSIVE?!!!!            01/01/70 00:00      
                  Expensive yes but what is the requirement            01/01/70 00:00      
                     The requirement            01/01/70 00:00      
               Watch out for test sockets            01/01/70 00:00      
                  This applies to BGA's as well            01/01/70 00:00      
                     BGA soldering            01/01/70 00:00      
                        Welllll            01/01/70 00:00      
                           Exactly!            01/01/70 00:00      
         Specific local information            01/01/70 00:00      
            Err            01/01/70 00:00      
               Probably low correlation between vote and posts            01/01/70 00:00      
               Err??            01/01/70 00:00      
                  Err??            01/01/70 00:00      
                     Pricing            01/01/70 00:00      
                        clickable            01/01/70 00:00      
                           no, but ....            01/01/70 00:00      
                     how hard would this be?            01/01/70 00:00      
   depends in task            01/01/70 00:00      
      Task defined here            01/01/70 00:00      

Back to Subject List