I have been using a T-962 oven recently with excellent results. I bought the "mod kit" just in case, but off the shelf the oven works fine for me. I do boards under 75x75mm. I am doing SOIC, 402, TSSOP all with great results when I look at them under the microscope.
Then I encountered the 100 pin PIC24 in 14x14mm TQFP. I have done them with an iron (drag soldering) but would like to oven them with everything else. I am just not getting it and wondered if any of you have experience here.
>> I have used both a stencil, and a syringe-tube (putting a solid line of paste on the pins).
>> I am using Chipquik T3 paste around 20-30microns, usually leaded.
After I am done I always get several bridges. I would think that I should come up "clean" and avoid this step.
The syringe does go on thicker than the stencil but the stencil puts on a nice thin layer--I still get bridges.
What am I doing wrong here?
Thanks all
Fritz
Then I encountered the 100 pin PIC24 in 14x14mm TQFP. I have done them with an iron (drag soldering) but would like to oven them with everything else. I am just not getting it and wondered if any of you have experience here.
>> I have used both a stencil, and a syringe-tube (putting a solid line of paste on the pins).
>> I am using Chipquik T3 paste around 20-30microns, usually leaded.
After I am done I always get several bridges. I would think that I should come up "clean" and avoid this step.
The syringe does go on thicker than the stencil but the stencil puts on a nice thin layer--I still get bridges.
What am I doing wrong here?
Thanks all
Fritz