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144 Threads found on edaboard.com: Copper Thickness
Hello, I am designing a microstrip filter in 6 with AWR. I have to handle 150 of power, and I ask me if the design is going to be able to tolerate that power. I will use roger substrate, with Er=3.5 and TanLoss=0.0018. What does the power capacity depend on? Anybody can help me? Is only function of the dielectric loss (and heati
Hello, We are doing an MCPCB with 42 2W LEDs on it. The LEDs have 700mA in them. Is it normal to use 2oz copper (70um) with this? I mean, with the copper being effectively heatsunk, you would think one ounce copper (33um) would be fine?
Do you know what standard thickness for aluminium MCPCB is? We are doing a board for 42 2W LEDs. (110mm by 46mm) Also, do you know what the standard thickness for the copper tracking on such boards is? And are there different levels of isolation between the copper tracking and the different dielectric (...)
136507,,,,,????copper thickness,,, put o.o35mm!!!!
Hi I would like to know which thickness I should apply when they don't mention it inside an article. I want to design an antenna of some ieee article . They said that the substrate top side is a copper coating also acts as the ground plane for the open microstrip line (feed) which is etched on the opposite side of the substrate but hey didn't m
Hi, Did you try to find the information on your own? (I doubt it.) Where? At the place where it is produced: the PCB manufacturer. A simple search "pcb copper thickness" gives many, many, many results. Often you find: 1oz Cu per square foot, 1.0oz. = .0014″ (35 microns) , 35um, 0.035mm Other thickness for sure
What's particularly unclear with copper cladding? Conductivity 57e6 S/m, thickness 35 ?m?
Hello, I'm just routing a simple board with SigFox TD1207 module and antenna. PCB 2 layers, thickness=1.6mm, copper layer=0.018mm (top and bottom) I need to control impedance line for antenna, must be 50 Ohms, on the bottom layer GND Plane. I'm using Altium, specify a PCB Rule (impedance = 50Ohms), but it seems doesn't work, trace width
Hello, Just designed and manufactered my BlueNRG-based PCB on ******, see attached picture for a 2-layer PCB with a PCB antenna works at 2.4GHz. PCB specs: Length : 55 mm Width : 30 mm Quantity : 10 Layers : 2 layers thickness : 1.6 mm Surface Finish : HASL with lead Finished copper : 1 oz Cu Solder Mask : Green Silkscreen : White CreateT
A stackup drawing defines finished thickness and each layer of conductor and dielectric. Vendor can choose either doubled sided copper in a multilayer and how many layers of pre-preg to make up layer thickness, for example in a 4 layer board.
Quality factor(Q) = 2*π*F*L/R F frequency ,L Inductance , R resistance of the coil If you increase the copper thickness the resistance of the coil increase hence better Q value COMSOL Have capability to predict Q factors of coil at high frequency
Hello, We need to wind a 3kW LLC transformer (PQ3535 bobbin) to full UK mains isolation. We want all our windings to be copper foil, the width of the bobbin. We know that the foil?s copper thickness will be 0.15mm, but how thick will the insulation be around the foil? Also, we believe that we won?t have to use margin tape as long as we (...)
The base copper weight is the copper weight as it is delivered from the base material manufacturer. The plating thickness is the copper thickness added during the plating process. During the plating process , copper is added to inside of the holes, to build a through hole, but the plating (...)
It can be PCB solid copper area 7X8mm, preferably on both sides, connected with 4-8 solid via (via filled with solder) Most likely your PCB will have 1 oz thickness of copper; you can increase the area in that case You cannot just replace 2oz with 1oz copper and increase the area, the heat spreading effect of
I am design a micro strip patch antenna for UWB application (3.1-10.6GHz) in CST. The substrate is Rogers RT 5880 and the feedline, patch and ground plane is copper (Annealed). The feedline is Micro Line Feed. the is result for S-parameter is accepted but the z-matrix(impedance) is around 40ohms but my minimum tolerance is at least 0.5mm a
- 2-6 layers PCB prototype - 5pcs - 1.6mm thickness - 1oz copper thickness - min 6mil track/space - min 0.3mm hole size - free silkscreen - free solder mask - free shipping The price is low up to USD50 for 2layers prototype,USD 150 for 4layers prototype,USD300 for 6layers prototype. For price details,please see the website (...)
Are you trying to shield E fields (E or H fields? What frequency? Keep in mind conductive spray is very thin and sparse and limited effectiveness depends heavily on coating thickness and lid seals especially which can act as great antenna. e.g. 1~2mil required or equivalent to 1 oz copper thickness. A shorted scope probe loop to Spectrum (...)
4-5 times the skin depth for the metal you are using should be ample, remember Al has a much greater skin thickness (or depth) than say copper or gold...
Hello All, I am glad to introduce EzPCB's service here. EzPCB Capability: Layers:1-40 Materials:FR-4, FR-1, CEM-1, CEM-3, Teflon, Rogers, AL base Max. Board Size:550mm X 710mm Board thickness:0.15mm-5mm Finished copper thickness:1/2oz-10oz The Min. Track:3mil (0.075mm) The Min. Clearance:3mil (0.075mm) The Min. Hole (...)
Replace the term GROUND plane with copper plane... it is any copper plane will HELP dissipate heat. There is more to it and thermal management can get very interesting... Also because of the limited thickness of PCB copper planes the distance the heat can spread from a heat source is limited, the higher the (...)
Double sided, at the very least. Depending on the power density, multilayer boards could be mandatory. Also, the copper thickness cannot be the hobby-grade 0.5 oz/ft2. Again, depending on the power density, I've seen boards where the power layers have been plated 4 oz/ft2 or even larger.
Hi, we are a small pcb maker in China. We can do 1 -8 layers, prototypes and small volumes for PCB designers and companies and educations and PCB trading companies overseas. We have price advantage at 1 and 2 layers , HAL-LF, green solder mask, white silkscreen, 1.6mm thickness, 1OZ copper PCBs. 1pcs is acceptable. Please send me gerber files to
Required - copper artwork for each layer, e.g. top, I2, I3, bottom - top & bottom solder mask - top silk screen, optionally bottom silk screen - board outline - plated drills, preferably with embedded tool table - optionally unplated drills not included in gerber and drill data: board thickness, copper weight, surface finish
Is there any document that i can citation? Just look at the copper thickness options for PCB material. Example here: And think about the aspect that FvM mentioned (how much copper thickness makes sense i
Clearance has very little to do with copper thickness, assuming you are talking about voltage creepage. It depends more on voltage and environment (altitude, for example). It looks like a very strange stackup to me. You've got 3 oz power plane but only one ounce ground plane. Doesn't the same current flow in both planes? Not sure what you are
The main upside to have 2oz copper is to reduce ohmic losses in high current tracks and use 1/2 oz for inner signal layers in high stack boards to keep them thin. The outside is normally plated with an extra 1/2oz copper . This 4:1 range in copper thickness options is universal, but others may have more options. The odd (...)
It depends on convection resistance, orientation,solder mask coating air flow velocity copper thickness, Case Rjc I would guestimate 5W~10W. More important is the Tj, not Tcu to not exceed 50 deg C rise for reliability.
Have you something called "route offset" (or similar) in the settings? If not then add some copper to the pad so that the route comes into that, stopping before the pad perhaps?
Essentially, the bending stiffness is proportional to board thickness raised to the square. And it's slightly increased by continuous power planes and copper pours. For the said board size, a metallic frame might be appropriate. Vibrations must be expected on a vehicle. At worst case hitting the self resonance frequency of your board...
Friend, I am using 3 sets of 15A Switching supply for my analog circuit, not sure wether to use 1oz or 2oz copper thickness for my PCB, Please let me know your valuable thoughts. Thanks, Jay
You didn't mention what material you are using, but assuming that the substrate and prepreg are available in your desired dielectric and copper cladding thickness, the above stackup seems completely feasible. As mentioned by barry, you should inquire with your PCB manufacturer to see if they have the material and ability to process your desired st
For mechanical stability I would like to use copper Clad Steel wire instead of solid copper conductor. I already tried 0.6 mm copper coated MIG welding wire. However the copper coating thickness seems well below 5 um as at 150 MHz a got extremely high resistive loss compared to solid (...)
The thickness that is specified is typically the thickness of the dielectric substrate, and does not include the outer copper clad thickness. So a 200um controlled thickness board with 35um (0.5oz) copper will be 270um thick overall. (Cross section = 35-200-35)
Hello guys, I am beginner, about simulate on CST MWS and EM topics. Well, let me explain. I have four models of microstrip antennas GSM dual band. I simulated each one with the same conditions, PCB size and thickness for copper and FR4 respectively, discret port (S-parameters) , Open space, and under ideal conditions. After that, I choice the b
2 oz (70 ?) copper is pretty standard for power electronics PCB. Thermal reliefs are probably unwanted for components carrying high currents. When boards are reflow soldered in production or professional prototyping, they are uniformly heated and copper weight isn't a problem. But it makes rework slightly more difficult and may require preheatimg i
There's no problem and no question to answer. The substrate will be manufactured in industry standard thickness, with or without copper lamination. Ask your PCB manufacturer for available types.
I was often told by my previous suppliers that it could be cheaper to make boards double sided because they bought in so much double sided laminate that the single sided was more expensive. If you want to prevent them warping then as marce says - you need to ensure that the copper on each side is balanced no matter how many layers. If you have a s
Stack is ok.Regarding thickness you can check with ur fabricator what is available with him. copper thickness is based on your current rating of the planes...
Hi95699 what should i do for feed a lump port in a structure that made by cooper? and what should i do for it if i want to apply voltage and current to lump port. actually i wanna try to understanding how can i simulate a wireless power transfer with hfss ring material is copper and sheet has thickness and E boundary .
Can effect the impedance calculation, otherwise pick a copper thickness based on feature size and current requirements.
Find out the trace width requirements for 50ohm based on ur copper thickness,dielectric material and dielectric constant and dielectric height from the reference plane. Search in Google u will get lof of calc.
Using finite conductivity boundary condition to simulate a thin layer of copper and PEC individually for a transmission line without applying any thickness due to the small skin depth. I realized that the mesh on the PEC one is much much more and of cause smaller than the copper one. Would some one explain why? Thanks!!
Most small RF microstrip uses 1/2oz copper, meaning that weight of copper spread out over 1 sq ft. area. The 1 oz. option and thicker is always available, and more. You can have it very thick if you like. The microstrip impedance model has the thickness as a factor, but it is a very small effect unless you are using edge-coupled features, (...)
hai friends, can any one tell me whether it is wright or wrong, am already started to route an analog board,while routing should i increase the thickness of a track or to apply copper pour and then cut it according to the width which i wish? come on geni,,, help me
It all depends on how long the trace is and what thickness copper you are using. This should help:
Dear All, What could be the issues in fabrication of PCBs with <=0.50mm pitch components and 2 Oz copper thickness. BR, Ricky
Performance with FR4 will be bad in the microwave range, independent of the substrate thickness. To achieve a specific impedance, you'll select a w/h ratio. Except for a cerrtain copper roughness and skin effect influence, the loss factor won't change with different h values.
Prepreg and substrate are the non-copper layers of pcb construction. I'm not really sure of the distinction between "prepreg" and "substrate". Prepreg is a specific type of material (for instance, fiberglass and epoxy). Any non-conducting material could be considered a 'substrate', I think, but not every substrate is prepreg.
it it should be air >copper>taconic>copper>air In this case, you have to increase the thickness of the air layer above and below the Taconic substrate. From your 3D view, this seems to be a very thin layer of air. Use something like 50mm instead. This air thickness is needed, even if you set the top and bottom cover
hello, i am designing half-disc patch antenna.the problem is i can't find copper material from the material library for the ground and the patches. iam using Roger rt5800 lossy as the substrate..there's only sse-copper, copper (annehealing) in the i need to declare new material??if so, how??