--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Thu, Jul 20, 2017 at 10:35 PM, Richard Wilbur <richard.wil...@gmail.com> wrote: > On Thu, Jul 20, 2017 at 10:07 AM, Luke Kenneth Casson Leighton > <l...@lkcl.net> wrote: >> On Tue, Jun 27, 2017 at 4:56 AM, Richard Wilbur >> <richard.wil...@gmail.com> wrote: >> >>> In the interest of solving the challenge of integrating the HDMI connector, >>> I have a few questions: > [...] >>> 2. How many copper layers does this board have? >> >> 6 > > Okay, that didn't change since the last time you answered this. (You > just answered the more complete version of my reply sent back on 27 > Jun. I accidentally sent it before I finished writing it--and then > sent the complete version after I finished writing it. You replied in > June to the incomplete version of the message and today to the > complete version. Sorry for causing any confusion as I am still > making peace with the user interface of my smart phone E-mail > client--which I'm thankfully not using right now.) i had a pre-prepared response which i'd not sent. saw the questions, answered them, hit send... then realised i'd seen them before :) >>> 3. What is the minimum trace size? >> >> 5mil >> >>> 4. What is the minimum trace spacing? >> >> 5mil. > > Did you change pcb fabricators recently? no. > In June you said the minimum > trace size and spacing were 3.5mil. yep that's another board. > Just want to be sure I'm working > with the right numbers. 5mil. >>> 5. Is the minimum plated through hole diameter 6 mil? >> >> yes. with a 12mil surround. >> > [...] >>> The Amphenol part has 0.15mm clearance between lands for even row of pins >>> and board edge in cutout while Molex 468753011 has 0.9mm clearance in the >>> same spot. >> >> i'll be using the JAE DC3 because the pins are exposed, meaning that >> standard oven baking can be used. the amphenol part the pins are >> covered over, meaning that a second pass of solder reflow is needed. >> that costs money... and sometimes doesn't work anyway. > > Sounds like an improvement in manufacturability. Which part are you using? > These are all mid-mount micro-HDMI receptacles. correct. > DC3R019JA7R1500 0.65mm 0.65 this one lines up with the micro-hdmi and usb-otg connector. l. _______________________________________________ arm-netbook mailing list arm-netbook@lists.phcomp.co.uk http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to arm-netb...@files.phcomp.co.uk