pcb outline shape conflict See above pointed, pls advise we fabric the pcb according to right angle or roundcorner?
EQ example: pcb outline shape conflict
August 26th, 2013 | Posted by in Engineering questions example - (Comments Off on EQ example: pcb outline shape conflict)EQ example:solder mask bridges
August 26th, 2013 | Posted by in Engineering questions example - (Comments Off on EQ example:solder mask bridges)Some distance are less than 7mil between IC pin pads as pic6-1, solder mask bridge cannot be printed between these IC pins pads because it is too narrow. For the distance area which is less than 7mil on this circuit board, we suggest A. Print solder mask bridges ,but the solder mask will cover the …
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EQ example: PCB Solder mask at BGA area
August 26th, 2013 | Posted by in Engineering questions example - (Comments Off on EQ example: PCB Solder mask at BGA area)How to print circuits boards PCB soldermask at BGA area? Pic 7, some blue vias framed at pcb BGA area are with solder mask covered at top layer, but solder mask opening at bottom layer. After solder mask filling, the vias won't be 100% closed (we name it solder mask half filling.) Pls choose, A：Make same as …
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EQ example: wrong pcb drill location
August 25th, 2013 | Posted by in Engineering questions example - (1 Comments)Q 8. pic12，we could see these 6 drilled holes with 0.3mm size are not in the center of copper pads. It is abnormal pcb drill location. We suggest to move these 6 holes to the center of the pads as pic 13, is it ok? pic 12 pic 13
EQ example: pcb PTH problem
August 24th, 2013 | Posted by in Engineering questions example - (1 Comments)Pls see above area circled, it seems some problems with these pcb PTHs coz they don’t connect with circuit board copper in Layer 2, maybe there are some mistakes while your designer export the Gerber files. Pls provide new data.
EQ example:abnormal circuit board solder mask opening
August 22nd, 2013 | Posted by in Engineering questions example - (Comments Off on EQ example:abnormal circuit board solder mask opening)Pic4，the MARKs solder mask opening are abnormal ，pls choose, A：Make same with gerber, the cooper around masks will be exposed. B: Change Gerber copper as pic 5 to make sure the cooper around masks will be exposed . pic4 pic5 Customer Reply ：
Some pads are out of PCB profile/outline, after routing, the copper will be expose as Pic1. So pls choose, A. Copper expose is no problem B. We will shave the blue pads copper as pic 2 to make sure the distance between outline and pads is 0.2mm. Then copper won’t expose after routing. pic1 …
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