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49 Threads found on Copper Clad
I have done these devices with the pads 1:1. Even though they show the pads smaller when these devices are put on a board they are connected with maximum copper for heat sinking purposes so with the recommended solder mask opening you effectively get a 1 ;1 pad. So I use IPC-7351 standard and use a 1:1 pad with a 1:1 solder mask opening and get the
Thermal PCB design is always an interesting problem. These days there are many solutions dependant on the circuit complexity and how many layers required to get the routes in. I recently did a 12 layer (all 2 ounce) flexi-rigid layout with numerous D pack and similar devices, lots of copper pours and thermal vias. The best use for metal clad is sim
If the demand is not urgent, ebay has it see here Sorry , it appears a closed sale. it shows available and later as "ended"
The thermal resistance rises significantly compared to copper clad alum, but it is possible. Compare per Watt. for 30'C jcn rise. and check/compare with
I was reading about ways to print your own PCBs, and read a few forum entries here as well, and - besides sending off to have it printed/made for you - the simplest seems to be using copper clad board and etch resist ink pens. The tracks in the photos I came across on other webs seemed quite wide, ...and "a bit cludgy" would
I had some success with copper plating this weekend. I got an used matrix board and painted the reverse side with a graphite paint I made. I mixed White nite kill rust clear with some lubricating graphite to a creamy texture and then painted the fibreglass surface. I gave it a very rough sand and then electroplated in copper suulfate solution wi
You can use 3/8 oz. Cu on RO Dk for outer layers, 0.5 oz for Epoxy clad layers and 1 oz layers for Vcc and ground for strength on uneven etched signal layers to prevent warp. Also 1oz gives lower conduction losses, and lower crosstalk with appropriate prepreg in between also. As well better tolerance on 3/8 Oz fine line copper over RO Dk. (ROger
Who knows where to get small quantity (100...400 m) of 0.5....0.8 mm CCS wire with 19...40% IACS conductivity? Shipping location will be Europe, Netherlands.
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)
I need to construct a circuit that takes in 3-3.7V, 2amps and outputs 5V, 1amp....instead of going through the stress of the common local etching, drilling and the rest of a copper clad...I would prefer to consult companies who takes in your design, comes up with possible circuits and design the module in line with your specifcations e.g length of
Prepreg has a specific function in multi-layer PCB. The full name is preimpregnated bonding layer, which should already answer part of your questions. If you are interested to understand the possible ways to combine copper-clad laminates, prepreg layers and copper foils to multi-layer PCB, you should study the PCB stack-ups published by P
I have been having good results with a new toner transfer technique. Put a heavy hotplate on the stove and dial in a temperature of 175 °C using a thermocouple. Bond the toner image to the copper clad board by placing them print side down onto the hotplate between two sheets of paper and applying pressure with a rolling pin for 2-5 minutes. For dou
Your cost targets are too low. Best Proto shop from my experience that can do anything you ask them to. Ask about thin Getek for RF over 2oz copper cost comparison with MCPCB. They offer no-touch discounts, Web order discounts and premiums for 24hr turn around. Ask about micro-via costs for RF and thermal transfer. https://www.protoexpress.c
78702 hey u know how to design this type of pcb in eagle by this type i mean making tracks using maximum pcb and excluding smallest part as possible
Dear All: We are a professional manufacturer of FR4 CCL in China,with capacity of 200000 sheets per month, below is the the basic information for our production. Product: FR4-CCL Standard: IPC-4101C/21 Certificate: UL/ROHS/SGS,/ISO9000 copper foil: single side/double sides Thickness 0.2mm~3.2mm Thickness of copper Foil 18μm~
Dear Buyer, Our main products are FR-4 copper clad laminate and prepregs. CHARACTERISTICS: Tg 140. Compatible with AOI equipment. Excellent UV-blocking performance. Good dimensional stability. Flammability UL94V-0. Meet the specification of IPC-4101/21 Normal size:34*49",41*49",43"*49. thickness:0.2~3.2mm copper from 1/3 OZ to 3 (...)
Hi, Is there any simplest way to copy the PCB layout printed on a paper to copper clad for pcb designing... please help...
I like the homebrew way and the flexibility of both techniques. Manhattan: copper clad,PCB,metal shear,metal nibbler,metal punch,soldering iron,super glue Dead bug: But the problem with Manhattan style is these little pads that separate
i am confused with laser powers , i want to make a cnc pcb machine as a final project . any body having a work experience on LASER's ? what power is enough (no more no less) which can etch , drill , and cut a (copper clad) pcb board . i just want to use a single laser module . would i use 10w-20w CO2 or less power would be suf
i don't thin it will work, there is cd holder for printing cd's , if using copper clad you have to fix it the surface with some method, but the risk is touching the printer head...
Folks, I'm making a write-up for a workshop. The class is on PCB layout, but I want to give students an idea about PCB fabrication too. Is this a the correct step for fabrication with photolithography? 1. copper clad FR4 substrate – starting point 2. Drill 3. Plate 4. Apply photoresist 5. Expose photoresist 6. Wash off unexposed
The copper is milled from the fibreglass material using small high-speed grinding tools. The isolation areas have no copper! I have this facility but still prefer chemical etching :).
Dear all, we are the copper clad laminate manufacturer in china, FR4,cem-1,cem-3 and aluminum CCL. also we are the pcb manufacturer ,supply single,double-sdie and multilayer board any one have interest,please contact
i want to cut down the copper clad into box shape very precisely,so can u tell me any method or any tool used for that!
hi,all we are the pcb and pcb materials-copper clad laminate manufacturer in china we have pcb single-side ,double-side and multilayer (4-24) also pcb matereials copper clad laminate fr1 fr4 cem-1 cem-3 and aluminum laminate. if you have any interest? please contact me winters (...)
Hi, can anyone let me know the minimum width of trace for a presensitized copper clad board (Pcb that processed with a UV light)? I have trace of 0.4mm in width(this width is due to the leg of component ADS7861, i cant make it wider or it will overlap). Can i make my design in that UV Pcb? Will the trace be disconnected for when i fabricate / etch
We are a copper clad Laminate manufacturer in China, named Zhejiang huazheng electronic group cp.,Ltd. Main products are FR-4/CEM-3/Aluminum-copper clad lamiante! Ul:E136069 Now I am looking for some agents over the world to expland the business! Of COURSE, WELCOME BUY FROM US, I WILL OFFER BEST PRICE Clark (...)
Hi,all we are the pcb and copper laminate manufacturer in China, we have pcb rigid and flex. copper clad laminate fr1 fr4 ,unclad laminate and aluminum laminate, we can do samples for you in short time and production. best price for you if you have any interest? please contact
We are a copper clad Laminate manufacturer in China, named Zhejiang huazheng electronic group cp.,Ltd. Main products are FR-4/CEM-3/Aluminum-copper clad lamiante! Ul:E136069 Now I am looking for some agents over the world to expland the business! Of COURSE, WELCOME BUY FROM US, I WILL OFFER BEST PRICE Clark (...)
Hello,Guys I am a copper clad Laminates manufacturer in China, named Zhejiang Huazheng Electronic Group Co.,Ltd. with Logo"HLD", established 1989.Main product is FR-4, the material of PCB. and Pass ISO9000.2002, UL NO E136069, also can supply you the SGS report! Any interesting,, let me know! Clark Zhejiang Huazheng Electronic Group Co.,L
hi,all we are the copper clad laminate in China, for develop our market,so we want to get agent in the worlwide, if you have any interests,please contact me. wait your skype:winters771 website:
Hi,all We are the PCB manufactory in China, also we product the copper clad laminate,FR4 and FR1. we can produce the single,doulbe sides,and multilayer pcb. Welcome to enqures to me, Winters Li Export Department Tel: 86-571-88901758 Cellphone: 86-15824440244 Fax: 86-571-88805106 Msn: E-mail: win
Hi,all We are the PCB manufactory in China, also we product the copper clad laminate,FR4 and FR1. we can produce the single,doulbe sides,and multilayer pcb. Welcome to enqures to me, Winters Li Export Department Tel: 86-571-88901758 Cellphone: 86-15824440244 Fax: 86-571-88805106 Msn: E-mail: [
Howto make a PCB in Home It is simple, Toner Transfer method Materials and equipments required 1. Ordinary Iron Box 2. hacksaw or hacksaw blade 3. low cost hand drill 4. copper clad sheet (Glass epoxy is best for this method, if possible don't use paper phenolic ) 5. Ferric Chloride (100 gm can be used for making 250 boards) 6. ART P
Hi, FR1,phenolic cellulose paper copper-clad laminates(phenolic/paper CCL),this kind of board couldn't be plated, the surface finish couldn't be HASL, endure 105 degree. FR4,epoxide woven glass fabric copper-clad laminates. It's a common base board to double side & multi side.
ANSI/EIA 274-D is the standard for G codes used for numerical machine control. It is sometimes called RS-274D format. It translates a drawing into a series of ASCII G codes to move a machine for manufacturing. In electronics it is used to control photoplotters for manufacturing masks to be used for exposing photo sensitive copper clad boards to
hi there i have made a pcb and i take it on on "A4 SIZE PAPER" so what is the way of transfeering these trace on copper clad board without ..peel n press paer...and without photo glossy paper.... please reply
hi all i need information or any kind of help in my country no exposure printed board only Printed Circuit Boards - Standard copper clad and i can get chemicals Potassium Dichromate my problem how to use chemicals Potassium Dichromate on the pcb to make it exposure printed board any information or link or book please thanks in advance
Hi, Can anybody help me to find address of compaines suppling copper clad Boards, Photoresist and chemicals in India regards Raju
No need for simulation. Just take a piece of copper clad PCB, drill a hole for an SMA, and solder the flange to the ground plane. Then solder wire to center conductor and trim until return loss is good. You can also use wire as a counterpoise instead of PCB.
The thickness of copper clad on a circuit board is usually given in ounces (oz). It is the weight of copper on one square foot of board. One ounce copper is 1.378mils (~35um) thick. Normal PCB copper thicknesses are 1/4oz, 1/2oz, 1oz, and 2oz. Other thicknesses are possible, depending on the (...)
Hi I am newbie in the microwave stuffs and I want to improve my skill on this.I don't have many things in my homelab ,so that I need to know how can I design electronic circuits using Microstrip for microwave purposes .also, is the microstrip layout board like the ordinary copper clad double-layered or what .Which PCB I must buy to implement th
hi first of all translate ur design to ur copper clad board by using photo sensitive matarials .then etch it in a ferric cloride solution ,keep it shaking for a while so that copper get etched off , then finaly clean it with ethonal solution. nikhil
I've used a angle grinder, but it's too rough.
A PCB pen can be used for simple layouts, layouts you can draw directly on to the copper clad board at one sitting. Then you drop it into a tray of etchant (ferric chloride solution) and the copper not covered by the ink gets etched away. The board has to be extremely clean, otherwise the tracks get smudged and / or etched.
what is copper seed ?
Depends on copper thickness, width, how hot you want it to get... Take a look here, a trace-width calculator... or here, for a simpler one... Cheers, FoxyRick.
Hi friends Did anyone knows how to use photoengraving glue for exposing copper clad. I think that has to mix with water and Ammonium bichromate. if anyone knows how to prepare the photosensitive solution please share. I hope the procedure for making blocks for printing press is same. regards Benoy

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