Electronics Forum | Thu Jun 17 20:57:44 EDT 1999 | Earl Moon
| Does anyone have experience with placing heat sinks on BGAs? I have limited experience with PSA (pressure sensitive adhesives)heat sinks, and am interested with the possibility of a clip-on device. I am specifically concerned with ease of assembl
Electronics Forum | Tue Jun 15 09:06:25 EDT 1999 | Clifford Peaslee
Actually, it isn't as far as I can tell. The improvement has been greatly increased since the move. It does still go down from time to time, but the down time is much shorter in length, and not as frequent. We have a high speed line in the office her
Electronics Forum | Wed Jun 09 17:29:59 EDT 1999 | Earl Moon
| I am starting a new project which involve 3 oz copper layer with 20 mil components on the top of the board and 0.040" thick copper with D2Pak on the bottom of the board. | There is anybody has experience on metal-based PCB reflow process? I guess
Electronics Forum | Thu Jun 10 11:23:10 EDT 1999 | Gang Pan
| | I am starting a new project which involve 3 oz copper layer with 20 mil components on the top of the board and 0.040" thick copper with D2Pak on the bottom of the board. | | There is anybody has experience on metal-based PCB reflow process? I g
Electronics Forum | Sun Jun 06 08:00:06 EDT 1999 | Dave F
snip | Ryan, | | The only advive I got is just don't do it!. Dave's right the grain growth in it is pretty bad. the other thing you got to look at is how much heat is the board gonna produce in it's working life..??? and where is it gonna be used,
Electronics Forum | Wed Jun 02 13:13:41 EDT 1999 | Tim
ok, ok, so I'm not an engineer. I'm a salesguy ( and that's nothing to be ashamed of...) Here's my dilemma. I represent a contract manufacturer who is in the early stages of quoting on "turnkey" assembling of a circuit board for a manufacturer of
Electronics Forum | Thu Jun 03 07:10:31 EDT 1999 | Earl Moon
| | To you all for comment and summary, | | | | The following things I like without endorsing (PCB/PCBA stuff - outside the great women in my life [many] and without [mostly]): | | | | 1) A good set of design rules | | 2) A good set of design rules
Electronics Forum | Sat Jun 05 00:27:54 EDT 1999 | Dean
| | | To you all for comment and summary, | | | | | | The following things I like without endorsing (PCB/PCBA stuff - outside the great women in my life [many] and without [mostly]): | | | | | | 1) A good set of design rules | | | 2) A good set of
Electronics Forum | Tue Jun 01 11:43:25 EDT 1999 | Dave F
| Hi, | | To improve the Design For Manufacturing I am currently looking to write down some design rules that can (and should be) used by our engineering department. | | Can somebody help me get started or give some usefull tips on where to find a
Electronics Forum | Mon May 24 17:17:21 EDT 1999 | JohnW
| | Can anyone steer me towards a supplier of heatsinks suitable for use on a PQFP 160. Before you shoot me down in flames, I know that I am not going to get much heat away from the die because of the plastic but the application is such that the boar
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