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76 Threads found on edaboard.com: Pcb Fab
I designed a simple one layer pcb by Eagle CAD and want to manufacture it, I send it to pcb fab but they told me my design can't passed their DRC. they told me the minimum spacing between the trace and board edge they can manufacture is 12mils, I setup the value but there are some "overlap" errors on the lower right corner. Is there any way (...)
Hello, For a 1.6mm thick pcb of size 30cm * 20cm, what is the thickest copper that we can have all over one side?...4oz? This plane distributes 175A to an array of 162 processors. ..i mean, should we really be "latticing" the copper, instead of having thick solid copper layer over the entire back and top surfaces (ground and power)? Ditto
I'm panelizing two independent circuit layouts in Proteus/Ares. I've figured out how to panelize the two pcb layouts on one board using the Ares Gerber Viewer, but I'm stumped on how to add slots and/or mouse bites so the boards can be separated after I receive them from the fab house. So the question is, how to I create a routing slot or simila
Hi dear electronic engineers! Low cost pcb Prototype & Assembly service provider here, exporting CUSTOM pcb and pcbA with competitive price and high quality, specialized in low volume quantity, all fabricated and assembled as per your requirments. Our Advantages: >File Review and Professional NPI Servic
Hi dear friends ! Low cost pcb Prototype & Assembly service provider here, exporting CUSTOM pcb and pcbA with competitive price and high quality, specialized in low volume quantity, all fabricated and assembled as per your requirments. Our Advantages: >DFM File Review and Professional NPI Service; >Special Part Sourc
Hey dear friend ! Low cost pcb Prototype & Assembly service provider here, exporting CUSTOM pcb and pcbA with competitive price and high quality, specialized in low volume quantity, all fabricated and assembled as per your requirments. Our Advantages: >DFM File Review and Professional NPI Service; >Special Part Sourc
I hope there is no facility available in altium to mention the depth of the V-groove. Normally these things are taken care by the manucaturer & if need to specify the depth you can write a string outside the pcb design & it goes along with the gerber file. For this option you can use keep out layer. Udhay
The concentration is not critical, if it is weak it just takes a little longer before the resist is dissolved. I normally use pre-mixed developer which uses a combination of NaOH and KOH but it is quite expensive. I suggest you make a saturated solution at room temperature (not warmed up) and see how you get on with that. If you look at the pcb in
I think your company might have some pcb design and Manufacturing needs in the future. So we discuss if you need us to do the test board design and fabrications. Let us build some connections here and so we can cooperate on future pcb design spins. We would also like to communicate about our company, Our company--?EDADOC? was founded (...)
Hi All. Say I have a pcb layout with RF Microstrip traces on it. Although the Allegro pcb designer is able to show trace impedance (50ohm in my case) by certain stack-up and trace width, am I able to do sort of simulation and maybe check S11 for my layout before sending it to fab? If so, what kind of tools (ADS?) I can use and would you (...)
I suspect that some of my pre-production boards have over-etching problems. About 1/3 of the boards fail with 1 or more interface, a different interface on each. Previously a whole series of bare pcbs were scrapped as the pcb fab detected over-etching. This time it passed their inspection, but now some of the fully assembled boards have (...)
I am printing a 2-page fabrication drawing: Page one is the board/drill guide, and page two is just the fab notes and stack-up. The board outline is printed on both pages , even though my "board outline" mechanical layer isn't one of the layers selected to print for page 2. Is there a way to turn that off for? Thanks!
Can anyone recommend an affordable microwave pcb manufacturer. Got one quote for a 25 sq. in RO4003 2 layer for $500 each qty 2. Seems expensive to me, I am used to FR4 boards costing $33 for the same specs.
unless you get the pcb made at a fab house then there is no easy way to do it really all home made ways are time consuming , other than what is stated, What I have done in the past is when I laid out the pcb where you have got a cap/ic is placed a pad at the side of it so you can solder both sides to make sure the connection is made. This is (...)
Ultrasonic cleaning of pcb and parts : Read this page : Best regards, Peter :wink:
Hello! I added MOUNT-PAD-ROUND3.0 from standard library named "holes", but where is the hole? I mean, i can see hole in the pad, but where it parameters that would be using fo drilling, i can see only center, without diameter. For me it is not obvious, how pcb shop will process my board. Should i do something with it or it is okay? Update: sorr
Hi all. I have an Aethra ADSL tester. Currently it runs with a battery but I would like to use it with an external power supply. Kinda I'm looking for identify two poles for the power supply. There are 4 pins on the power-in DIN-type connector. 9308193082 93084 Look
Hi Guys, I have designed a high gain microphone amplifer, using 0805 and soic pacakges. I have built a home made pcb and I had trouble reflowing with it, I had the via's to GND very close to the components pads. The underside of the pcb is a solid copper GND plane. I am going to get the pcb done by a proper pcb (...)
Oh, well that's just a matter of designing your antenna; selecting a specific dielectric +spacing and submitting to a reputable pcb fab house. The tolerances of the fabrication should be checked prior (you don't want a few mm difference detuning your antenna). pcb Express Fritzing fab
Just place full vias so the board outline goes thru the center of the vias. No need for any extra note for the fab house. They will fabricate the pcb exactly the way you design (what they see on the gerbers) - place the vias and route them so only half of vias are left.
Hello, Is anyone aware of a very thorough list of design rules published that goes above and beyond of what can typically be found under a list of fab capabilities? Something like a huge list of what is typically checked, and with standard rules and "advanced capabilities" rules. I have plenty for the typical line widths and air gaps but
can depend on the weave, for hi reliability always specify 2, other wise discuss the problem with your pcb manufacturer.
As above, any good or bad experiences with fab houses or companies from Toronto or Ontario? Please share. I found a few online, but not sure if they are good or not.
Most Altium user use the Drill Drawing layer as the fab Drawing. However if you really want to add your own - you can do it in View Configurations Press "L" while you have an active pcb file and choose one of the mechanical layers click it twice to re-name. If you don't have any spare mechanical layers un-tick only show enabled mechincal layers an
Choose fab houses that can produce your design, these days most fab houses should be capable of doing all standard pcb design. Its only when you get to realy exotic designs will you have trouble going from one fab house to another. And as stated IPC standrads are the one to use and reference as your pcb (...)
Has anyone here have any experience on pcb Design / fab / Assembly start up? May I know how did it go? What are the considerations? What are the challenges involved?
I'm suspect the pdf converter. I suggest going to File/fabrication outputs and generating Gerbers. You can down load View Mate from Penta Logic for free to view the Gerbers. Many designers always do this before up loading files for pcb fab as a check. In VM be sure to set the file type to All else you will not see the files. You should (...)
Also place NC legend from Artwork tab without that you will not see drill table and drill symbols in pcb
Can orcad pcb editor generate a fabrication drawing? My board house is requesting one thanks
This is the factory you are looking. They are VERY good in pcb
I remember, that the small pcb fab at my former university institute used etch-resist films as a kind of "poor mans" solder mask. These are the only solder masks able to melt I ever saw. But today's industry standard solder masks either dry film or liquid applied don't melt at regular temperatures.
Hi All, any one can suggest pcb fab from CHina, US or Europe. here is what i need: up to 6.35mm thickness with <0.5% warpage up to 400 micro inch nickel with up to 80 microinch gold 32+ layers blind/buried/laser via capable via in pad capable 1:15 drill to thickness ratio thanks in advance
Guys, I believe in this edaboard forum, mostly people are interested in embedded stuff. Are you guys most of them working as programmer ? I want to ask opinion, what opportunity you guys got out there working in industrial ? In my hometown, currently only few company manufacturer of X-fab wafers, Tokuyama pcb. Is it worth to working in this
A homemade pcb making system. 6mil tracks shown. Clearence seems much less.
Hi... I currently do a design using Fujitsu MB91F467 Microcontroller. Right after pcb fab, i found out that the connection for SO & SI pin to SPI EEPROM not according to hardware SPI standard. I've been thinking if i could posibly use the port function as standard GPIO for SPI purpose. The CS & SCK pin is correctly connected. Is anybody know abo
This is quite a difficult task for the pcb fabricator and it is very rear and very expensive it this could be done. ______________________ NO SIGNATURE LINKS ALLOWED
Do you know any good pcb designer in chennai...
Hi All, I have 9-year experiences at pcb layout which can be done by Mentor-PADS, Mentor-WG, Cadence-Allegro, Cadence-Orcad Layout, Altium, or even Eagle Editor. Pls feel free to contact me via alex.epds@gmail.com. And I also deal in buying parts, fabrication and assembly. I am located in California of U.S. Thanks, Alex
I need to produce a pcb and i dont have the standard gerbers, only this four files: - .fab file; - .geo file; - .neo file; - .wir file. I believe that they are related with " mentor board station" because i saw it in one of the files. Please i need help to open this files and produce the pcbs. Thanks in advance for all the help!
Dear All, Could you please recommend some pcb manufacturers who are good at Rogers multilayer fabrication with high quality for small-quantity prototypes of microwave circuits? Thanks a lot. Actually, we have a design of three metal layers based on Rogers RO4003C with total substrate thickness of 28mil (20mil + 8mil). There are two kinds
Hi All, I have 9-year experiences at pcb layout which can be done by Mentor-PADS, Mentor-WG, Cadence-Allegro, Cadence-Orcad Layout, Altium, or even Eagle Editor. Pls feel free to contact me via alex.epds@gmail.com. And I also deal in buying parts, fabrication and assembly. I am located in California of U.S. Thanks, Alex
ontact your pcb supplier and ask them if doing it yourself will actually save on fab costs. I doubt it. Why you ask? 1) They have to run DRC checks on more than 1 board then. 2) You may not get the panelisation correct to their requirements. 3) The actual panelisation actualy only takes them a fw minutes as it is all scripted, its the
Hi there is one doc by chakravarthy80pcb.I am attaching here,u can refer the same for silkscreen generation
Hi, I have a general question about pcb manufacturer. The fab house told me that when I use 1/2OZ copper foil (.7mil) on external layer, after plating additional copper for PTH, it goes to about 2.2mil. Is that true? What are the minimum copper plating thickness? Does it depends on the PTH copper thickness? Thanks.
Hi All, I saw a similar thread for SIM300 module and there someone posted really nice solution. Let's see if someone can provide a nice solution here. If anyone had done a pcb design for breakout board for SIM548 module, please let me know and possibly share your gerbers. Regards, Pagal
Hybrids are available from long time using pcbs with low-loss material in top of FR4. But I believed that you are looking for multilayer pcb using ONLY low-loss and high Er materials. I never seen yet let’s say: 8 layer, 10cm x 10cm board, all layers RO3010.
Folks, What end-mill diameters fabs typically used for routing (milling) the outline of the pcb? I have a pcb with an inside angle. I don't want to make an inside chamfer, as in the bottom-right drawing below. That would weaken the board mechanically. Instead, I want to make an outside chamfer on a mechanical part that mates with (...)
IPC specs, (there are a few of them) all have to do with 'quality' of a pcb. ie: does it have less than "x amount of this, or y amount of that". Generally, a common board doesn't have to worry about it, as most pcb fab houses produce acceptable boards. It's mostly for people that want to pay for the extra added assurance that the board (...)
Hi... I am working as pcb,signal integrity Engineer.of Late I learn FPGA,CPLD design and VHDL Verilog Perl Languages.Now I want to Move to Hardware Design. I know the Knowledge of fab,stackup design,Coponent selection Decap and termonations resistors which I learn from signal and power integrity topics and i worked on tools on these issues. ho
one of the reason may be: overlapping of two drill holes..(this is used when u use some optional components) if this is the case ,dont worry with the mismatch between pcb tool and gerber tool