Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Matthew Park

#9914

SMT and TH board carrier | 27 August, 1999

Is it feasible to have one type of board carriers to take boards thru 1) glue curing process for first side and 2)invert carriers with boards, and 3)reflowing second side, and 4) do manual stuffing of th components and 5) take them thru selective wave soldering process?

I am trying to create a continuous assembly process where SMT components for bottom side is cured and for top side is reflowed, and TH components are wave soldered selectively by using one type of board carriers without operators handling boards.

Is any assembly company doing this, assembling both sides of SMT and doing selective wave soldering for TH? My thoughts suggests that this is not possible. And this continuous process with one board carrier type only works with SMT and TH components on one side.

appreciate your technical inputs

Matthew

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#9915

Re: SMT and TH board carrier | 1 September, 1999

| Is it feasible to have one type of board carriers to take boards thru 1) glue curing process for first side and 2)invert carriers with boards, and 3)reflowing second side, and 4) do manual stuffing of th components and 5) take them thru selective wave soldering process? | | I am trying to create a continuous assembly process where SMT components for bottom side is cured and for top side is reflowed, and TH components are wave soldered selectively by using one type of board carriers without operators handling boards. | | Is any assembly company doing this, assembling both sides of SMT and doing selective wave soldering for TH? | My thoughts suggests that this is not possible. And this continuous process with one board carrier type only works with SMT and TH components on one side. | | appreciate your technical inputs | | Matthew | | I'm sure you can do that, but for some part of the process a well designed panel with snap-offs would be just as effective and not require the investment on peculiar tooling. Also, designing the fixture for the specific process that require the tooling may give extra flexibility in design, lower its cost, need less maintenance, and require less inventory in tooling.

But then again, this decision sounds like it is very process design specific.

My2� Dave F

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