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1000 Threads found on Pcb Masking
You can mask or unmask via's while you are generating gerber. For masking, you can get it done from your pcb vendor by supplying his soldermask film.
yes it is available in india. if you have pcb for small qty then better go for Photo imageable solder mask. it comes with hardener . mix needed quantity and apply using screen mesh. bake @70 C for 20 min, expose with positive soldermask pattern( the liquid is negative acting ) develop with sodium carbonate again bake @150 c for about 20 min. i
Hi all , I am routing FG at the Boundaries of my Power supply pcb to protect against ESD . Now all i require to know where to do masking and where not to . Please Guide !! Regards !! V V
How create green masking to the pcb? can anyone give me some information...
Allops, Does anyone have an idea how to protect the edge the pcb from ESD. Actually my design can conduct with the pcb at the edge of my pcb. i want to maintain my design, so need ya opinion how can i protect my pcb there any coating or masking material that can protect the pcb...PLZ...need (...)
Thank's Hai All Could some one tell me,What is the name RED or GREEN accrylic at the surface pcb? Huys
This might not be the right forum but I post this topic just because I was so proud of my achievement today. This might also be helpful to other and for some this might not be of interest. I'm no biginner but I usually use masking tape and sticker for my prototype. It was not new to me that some are using lazer printer for transferring patter
Hi Guys , Can anyone help me to remove the Silk Screen printing from the pcb's without damaging it since the fabricated pcb's what I got, there is sm misprint.
Sometimes this is due to the need to slightly improve thermal properties of pcb concerning radiation.
Drilling is done before silk screen so that isn't an issue. Some pcb manufacturers clip the silk screen around the solder mask so if you the vias are exposed the text will be clipped and so difficult to read so it is best avoided. Keith.
Dear all, I have pcb at home by Laser Toner method... I have done etching & now want to do Green Soldering Mask... Please help to how to apply Green Soldering mask, where to get the pcb raw material in Chennai. Thanks, Sivaprakash.R +91- 99403 28709
Dear friends, I'm beginner for pcb designing, kindly help me how to select values of resistor and capacitor in IC based and Filter based circuits Regards, Manivannan Selvaraj
Good "pcb" in Taiwan.... there are lots of them Compeq! the new FCPGA substrate for Intel, also the largest pcb supplier in Taiwan. Nanya, the 2nd one in Taiwan. Unicap/WUS/Unimicron/PPT....etc... there are lots of big/excellent pcb vendors in Taiwan. Indonesia? Sorry I don't know anything about it.
Which software do you use in pcb layout when you design RF circuit? Is there any inofrmation about how to draw pcb board in RF design? Thanks in advnace.
Does anyone know about flush pcb - encoder application? Thanks rocknrule
Hi, Is anybody has pcb in Protel 99, Eagle oe something else except PDF files. I need also doublesided pcb for pcb-3b version Please let me know on PM or mail me at: Thanks, ***************************************** Please don't reply unless you have useful information to add on this post. Thanks
I have simulated it by Ansoft HFSS. The result R as following: If U use just a bent wire, it should be 100mm-102mm If U use the line on your pcb, the lenbth should be 53mm-54mm Good luck , and send me back the experimental results. thank U. And would U PLZ tell me what the usage of your project, in detail, especially 4 what customer. T
hi guys! i have designed a 24v,4A low cost battery charger works in simple constant current mode as stand alone.also it is possible to control its output current/voltage by a microP or even a computer port,if an a/d card is available. its docs (sch & pcb)in protel format is available. if u want it respond to this letter! :smil
Anyone have a design or link to a GSM pcb aerial.
I think you have to get a pcb design package, CadStar is good, then you can lay it out exactely to suit your requirements, I'm sure you will learn more by doing that. Especialy when it dont work first time! Nothing ventured, nothing gained! 8)
Dear public! Will not prompt, what sch/pcb Design - programs for Linux are. Really qualitative packages (probably known, and it it is possible - and not so) firms are interesting. Eagle to not offer :)! pcb and shematic!
:D I think I understand your question. I’m also thinking same for long time. You want to feed pcb instead of Paper in the laser printer to get direct print on pcb. You can try to modify any old laser printer. Or try flexible pcbs(i.e. copper on plastic sheet). If u gets success then inform me too.
Is there any source to get CHEAP Pcik and Place machines that work on SMT devices.. I am looking for a low (maybe mediam) production machine, that can successfully pick parts/chips/resistors from reel, place them on a pcb according to placement files..i.e. Fully ataumated (or maybe semi-automated).. Could be used for prototyping, or low production
Please, who can help me to find pcb test points (smd type) to use with standard oscilloscope probe?
Hi, I am willing to produce a pcb around a Motorola 555 microcontroller. But this is a BGA packaged chip and I can't solder it myself. Does anybody know of a company that can solder BGAs for proto boards (ie. not at a high cost and in indicidual quantities) ? PS: I'm in France, so please links only in European Union, thanks
You can download a freeware version of eagle from - it works well and stable. i have it running on SUSE Linux 8.0 but theres another pcb 'design' tool included in the SUSE distribution - i forgot the name of it, but it's not worth a try (its more like an paint prog)
Can anybody tell me something about the possiblities to include a GSM Antenna on a pcb. Any information is welcome Hollaender
can anybody tell me if there are any antenna design tools availbale for pcb or simple antennas for 868 915 Mhz bands. or does any body have a design for good omin directional antenna's for these bands thanks
Hi SATCAD - a schematic capture, pcb design and tooling package. The source code, dos executables, manual and many other bits and pieces are at 1. -> t tnx
How about pcb GNU
i used some uv tubes from the things used to check currency 6 each side then i could do double sided pcb.s i found code here this gave me the pwm to drive all the bulbs using my own circuit to wire them all up to one supply {in series 6 then parallel two} it takes 3.36 sec exp
Hi, does anybody know a pcb application that supports IDF 4.0. I checked with Mentor Graphics and they will not implement in the near future. I checked with ProE and they won't implement as long as ECAD vendors don't implement.... :evil: anyway, if you know...let me know... greetz, venz
Hi Folks! Can someone explain me how to do an home-made negative photoplot of pcb with P - C @ D 2**2? :( I can make positive photoplot without problems. I used a HP laser printer with a transparent sheet and it works fine for positive. For negative I've tried many color options unsucessfully. I search for any option to "revert" the pcb
maybe u can ask to get an educational license. a lot of companys do give such licenses. From handling aspects i would recommend Powerpcb which have a very clear and structured user interface and its perfect to use. i really tried a lot of Schematic/Routing Systems. regards Elvis P.
Hi I need help to plot a pcb file in the format L10, supposed to be sent directly to a HP laserjet. Is there any way to open and print this file in another fileformat? I attach the file so anyone can help me or check the file. Regards
Who can give me some advice on how to mount a BGA chip on a pcb board ? What kind of special devices needed to mount it on ? thanks
Since this post conforms to the rules, I will re-post it, I don't understand why the original was deleted. Free pcb cam software is available at this is similar to cam350 - the disadvantages that I have found are - you need to download a new license every month - it does not output IPC-D-356 - and it doesn't import HPGL - h
I have been using mils since I started to layout pcb's. I come from a metric country. I used both systems, now I moved to USA and I switched to metric and I'm helping my mechanical guys to do that. All the stuff is made over seas now and they use metric. If you need to start your own library I will suggest you to do it in metric units. In a couple
Hi guys... I'm newer using the accel version of the old tango... I can't read the "net list" 'cause its appear do not have some equals pieces in schematics and pcb library... How can I fix it? Sorry my poor English
I have drawn a pcb by Protel99 following Motrola's document, but the pcb is not good, maybe the length of line is not crect. So, who have designed MCF5272' board ? Please send me a copy of Ur file, thank U. :oops:
The ususal signal speeds in a powerpc processor based design are such that logic supply planes and ground planes are needed. In case of dual logic supply I would go for a plane for each supply. It is by the way not handy to have 7 layers (or any odd number). The pcb manufacturing process is such that layer numbers are always even. In other words: i
hi, i have a question about microstrip on pcb. when talking about microstrip on pcb, we may focus on phase vilocity and calculate the time delay between source and load, what i want to know is that if the working freq of my digital system is 100M, what is the rf freq i should assume when dealing with microstrip.
Why do you want make this ??? POWERpcb is hardly a good "ShareWare" whereas MENTOR is a true software of CAO... Best regards..
For additional info about WILLEM programmer look in and There you can find schematics and pcb board design and software too ! mikasi
pcb product, services, resources
Hi All I want to know which pcb layout software could be let more than one people do the layout at the same time? ********************************************************** PCAD 8.5 DOS PCAD 2001 using Macro commands Mentor Graphics C4S V8. Allegro but YOU have to know wht I you doing with scrip file and who is drivi
i am looking for some pcb projects that i can make at home! i am a beginner can anyone give me some link files ect ect with project that come with a pcb??? cheers
Hi, nukhung: I am looking for information about pcb Drilling and Milling Machine, I searched forum and didn't find your article. Would you please upload it again? Thank you in advance, ywyw Hi ywyw, Attached in it is a drilling & milling machine catalog. Hope it helps. Cheers.
as far as I know there is an ULP (User Language Program) for this purpose you can import drawings to your pcb they will be on layer numbers > 200 but tracks will not be real tracks this is only good for putting a logo on your pcb
I'm Looking For You'r Opinion About The Ideal pcb Stackup Layers For Multilayer High Speed Design. i Would like To use At Least Half Of The Layers For Signals, But I Would Also Would Like To Keep Clock Layer Isolated, I also Would Preffer To Locate Voltage Plane Near To GND Layer. I'll Apretiate You'r Contribution !