Electronics Forum | Sat Aug 14 07:01:44 EDT 1999 | Earl Moon
| Has anybody adopted the method of stencil printing with the board at a 45 degree angle to the squeegee blade? What are the benefits and drawbacks? I've heard you get better fine pitch results. | | TX | Mark | I know we all seek easy/better solut
Electronics Forum | Fri Jul 23 12:38:33 EDT 1999 | Earl Moon
| There is a practise within the industry of an Inspector inspecting a board, and that same Inspector performing touch-up. My opinion is that the Inspection and Touch-up operations should be separate functions whereby the Inspector is not performing
Electronics Forum | Fri Jul 23 09:01:36 EDT 1999 | Earl Moon
| HI Earl | Thank you for your answer. | Let me know you about the hot you mentioned | First of all, The rework machine is the BGA3500 (manufactured by 0.k international:U.S.A) | ��DESOLDERING HEAT :OVER 200��(CENTIGRADE),30SEC(CHECKED
Electronics Forum | Tue Jul 20 11:33:55 EDT 1999 | Ted Kress
| | I'm planning to introduce selective point-to-point soldering for pwb. This is due to various needs: PIHs assy on double IR, for example. I think the most suitable solution is a point-to-point soldering, 'cause we're still having small lot/many ty
Electronics Forum | Thu Jul 15 17:53:34 EDT 1999 | Boca
| I'm designing a board where the parts will only fit if I do one of the following: | | 1. Put BGAs on both sides | | 2. Put BGAs on top, smt TSOPs directly underneath and using blind vias to keep the real estate on the bottom side below the BGA pa
Electronics Forum | Mon Jul 12 14:30:37 EDT 1999 | Earl Moon
| Hi all , | | We are trying to implement the micro-BGA technology at our plant. I need the clarification to the following points: | | 1. Is underfill required for micro-BGAs? | | 2. What type of stencil apertures are the industry standards for uB
Electronics Forum | Tue Jul 13 13:28:18 EDT 1999 | Upinder Singh
| | Hi all , | | | | We are trying to implement the micro-BGA technology at our plant. I need the clarification to the following points: | | | | 1. Is underfill required for micro-BGAs? | | | | 2. What type of stencil apertures are the industry st
Electronics Forum | Mon Jul 12 12:28:10 EDT 1999 | Wolfgang Busko
| I need some advice concerning reflow of a BGA-292. Since I am not ready to change my entire process to no-clean, I decided to place the lone BGA-292 on a proto run using our BGA re-work station. The pcb is a moderately dense, single-sided, 8-laye
Electronics Forum | Wed Jul 14 14:05:52 EDT 1999 | KT
| I need some advice concerning reflow of a BGA-292. Since I am not ready to change my entire process to no-clean, I decided to place the lone BGA-292 on a proto run using our BGA re-work station. The pcb is a moderately dense, single-sided, 8-laye
Electronics Forum | Mon Jul 05 02:32:14 EDT 1999 | Vinesh Gandhi
Dear All, We are a medium sized Electronic manufacturing company manufacturing computer motherboards and Telecommunication products. We have a big debate going on within our company regarding the defect rate measurement technique. At present we
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