Quick Turn PCB Manufacturing - Viafine PCB Manufacturer

Started by Anonymous in comp.arch.embedded11 years ago 2 replies
PCB

Viafine Electronic & Technology Limited (http://www.viafine.com) deals mainly in the supply of Printed Circuit Boards (PCB,FPC),...

Viafine Electronic & Technology Limited (http://www.viafine.com) deals mainly in the supply of Printed Circuit Boards (PCB,FPC), Single-Sided PCB,PTH Double-Sided PCB,NPTH Double-Sided PCB,Flexible PCB(FPC),Multi-layer PCB(2~12 Layers)for worldwide customers. with more than ten years of specialized experience and excellent engineering Team, Viafine is responsive to customer needs for speed to...


PCB drawing

Started by icegray in comp.arch.embedded12 years ago 17 replies
PCB

Hi all, Which PCB program does Professional use? PCAD is better than ORCAD and PADS or which one is better??????? I have got ORCAD experience...

Hi all, Which PCB program does Professional use? PCAD is better than ORCAD and PADS or which one is better??????? I have got ORCAD experience and I think ORCAD is not comfortable at advance PCB. What do you think about PCB programs?


V Cut for multiple layers PCB

Started by kunil in comp.arch.embedded11 years ago 7 replies
PCB

Hi all, I need second opinion about V Cut for multiple layers PCB. I designed a 4-layers PCB, and want to buy 1 or 2 PCB panels from...

Hi all, I need second opinion about V Cut for multiple layers PCB. I designed a 4-layers PCB, and want to buy 1 or 2 PCB panels from this PCB manufacturer. The PCB manufacturer offered me a V Cut to separate each copy of my design. They said it'd be cheaper since I could break the V Cut with my own hand, rather than separate them using CNC drill. In my opinion. breaking V Cut using my ...


Avoiding PCB stress from connectors ?

Started by Dave Nadler in comp.arch.embedded4 years ago 4 replies
PCB

I'm sure there are some standard techniques to minimize this ? Product has a number of connectors on a PCB, mounted in a box. Because the...

I'm sure there are some standard techniques to minimize this ? Product has a number of connectors on a PCB, mounted in a box. Because the external cabling and connectors will be subjected to stress, there are (for example) hex nuts fastened through the sturdy box through DB connectors on the PCB. Then when the external cable is yanked, it doesn't break the PCB. So, the PCB is fastened...


50 ohm PCB antenna track impedance

Started by comp.zrch.embedded in comp.arch.embedded8 years ago 2 replies

I am designing a PCB which will use a GPRS modem. The connection between the Antenna SMA connector and the GSM modem is via a 20mm 50 ohm PCB...

I am designing a PCB which will use a GPRS modem. The connection between the Antenna SMA connector and the GSM modem is via a 20mm 50 ohm PCB track. This is a two layer 1.6mm thick 1 oz copper PCB and the 50 ohms impedance is achieved with a 260 thou track in a ground plane with 8 thou clearance over a solid ground plane,. Do I really need to get the PCB impedance checked by the pcb manufactu...


low cost CRT controller for ARM9

Started by Anonymous in comp.arch.embedded12 years ago 6 replies

Hi, We are looking around for cheap CRT controller which to add to our new ARM9 development board. So far Seiko-Epson S1D13506 and Asiliant...

Hi, We are looking around for cheap CRT controller which to add to our new ARM9 development board. So far Seiko-Epson S1D13506 and Asiliant 65550 took our attention. Any experience with the above two? Is there better options which we missed? Thanks Tsvetan --- PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb) PCB any volume assembly (http://www.olimex.com/pcb/pr...


Mounting/wire a MAPBGA

Started by Edzard H.E.H.M. Kolks in comp.arch.embedded14 years ago 8 replies
PCB

Hello, I have been given some MC68VZ328VF33V, Dargonballs. They have MAPBGA housing, so it's impossible to solder them the old fashion...

Hello, I have been given some MC68VZ328VF33V, Dargonballs. They have MAPBGA housing, so it's impossible to solder them the old fashion way. I was wondering: How can you mount them to a PCB? Is it possible to glue them to the PCB with a special product that doesn't isolate the electrical "flow" Or is it only done with some professional help, eg. an PCB factory. Thanks, Edzard Kolks...


SELL PCB

Started by Anonymous in comp.arch.embedded11 years ago
PCB

GENMA Technology Hong Kong Limited Co. is an export-oriented PCB ( Printed Circuit Board ) manufacturer . We can provide the single-side PCB,...

GENMA Technology Hong Kong Limited Co. is an export-oriented PCB ( Printed Circuit Board ) manufacturer . We can provide the single-side PCB, the double-sides PCB and the multi-layer PCB Contact: Mr. LIU CANFA Company: GENMA Technology Hong Kong Limited Co. Address: AiLian B District, LongGang Town Zip Code: 518121 Phone: 0086-0755-89721024 Fax: 0086-0755-89721070 Mobile 0086-01371524548...


processor based PCB designs

Started by manohar in comp.arch.embedded12 years ago 3 replies

Hi, I accept that I don't have a previous experience of designing embedded PCB boards, but I feel this should not be problem for me now. I want...

Hi, I accept that I don't have a previous experience of designing embedded PCB boards, but I feel this should not be problem for me now. I want to design embedded PCB boards with ARM processors in it, some thing like LART and balloon boards projects. Can some one give me the directions for going around for it( like web-sites mentioning aspect of processor based PCB designs)? manohar


Manufacturing - Tracking

Started by eeboy in comp.arch.embedded7 years ago 7 replies

I work for a small manufacturer. We ship a product with several different PCB assemblies. We've never had a good system to track exactly what...

I work for a small manufacturer. We ship a product with several different PCB assemblies. We've never had a good system to track exactly what goes out the door to each customer. I am in the process of rectifying this and wanted to see what others do. At a minimum I want to relate the PCB revision and PCB assembly revision as well as the firmware revision back to a serial number. I'd like to get ev...


PCB manufacturer in Europe

Started by - in comp.arch.embedded13 years ago 6 replies
PCB

Hi all, Till now I was using Eurocircuits in Belgium for the PCB manufacturing. But I'm not satisfied any more ( upload problems,...

Hi all, Till now I was using Eurocircuits in Belgium for the PCB manufacturing. But I'm not satisfied any more ( upload problems, capacity problems etc. ). Are there more PCB manufactures which have an easy to use upload mechanism and good price / quality ratio somewhere in Europe? Gerard


Free/Cheap PCB Design Tools?

Started by NoJo in comp.arch.embedded11 years ago 14 replies
PCB

I'm starting up a PCB projects with some engineer colleagues -- some signal sources that we've had cobbled up in the lab for a while. We don't...

I'm starting up a PCB projects with some engineer colleagues -- some signal sources that we've had cobbled up in the lab for a while. We don't have any project funding yet, and are currently doing our proof- of-concept work prior to looking for some funding. Understandably, we can't use the PCB tools provided by our respective employers (conflict of interest and all), and given that even an...


PCB routing

Started by Habib Bouaziz-Viallet in comp.arch.embedded8 years ago 5 replies

Hi all ! I'm being project on a based MPC8315E. I have some experience on High Speed PCB routing (DDR & DDRII) but never PCI-e or SATA. I...

Hi all ! I'm being project on a based MPC8315E. I have some experience on High Speed PCB routing (DDR & DDRII) but never PCI-e or SATA. I would be very grateful if someone could recommend me a book on the topic and generally speaking on High Speed PCB guidelines (and theory) Best regards, Habib.


Any reliable PCB Assembly (PCBA) Turnkey Service?

Started by nahum.bush in comp.arch.embedded3 years ago 2 replies
PCB

PCB manufacture is now a common, standard service around the world. But before PCB Assembly, Components sourcing is very complex, cost time...

PCB manufacture is now a common, standard service around the world. But before PCB Assembly, Components sourcing is very complex, cost time and money. Thousands of components in the world, has variant of assembly process and quality specifications. I have found some: NexPCB, Alibaba, OneStop, Is it safe and convenient to try the PCB Assembly (PCBA) Turnkey Service online? ----...


BARE BOARD PCB TEST QUESTION

Started by Enrico in comp.arch.embedded8 years ago 6 replies
PCB

Hi, I'm routing a PCB. I'm trying to figure out if I can reduce the number of nails required by the fixture that my PCB manufacturer will...

Hi, I'm routing a PCB. I'm trying to figure out if I can reduce the number of nails required by the fixture that my PCB manufacturer will have to build in order to test the bare boards. FACTS ---------- The non recurring cost of PCB bare-board test fixtures depends on: 1) The size of the pads to test (the smaller the more expansive) 2) The number of the pads to test My boards...


Intrinsically safe PCB connectors?

Started by ElderUberGeek in comp.arch.embedded11 years ago 10 replies
PCB

For a unit that will be encapsulated in resin (for intrinsic safely) I am looking for a PCB connector that will allow for field wiring of...

For a unit that will be encapsulated in resin (for intrinsic safely) I am looking for a PCB connector that will allow for field wiring of the relevant wires to the unit (meaning, the bottom half of the connector that is mounted on the PCB is also encapsulated in the resin but the upper part used for connection is exposed). Thanks


Simple PCB circuit-tracing technique (1 or 2 sided)

Started by msg in comp.arch.embedded12 years ago 5 replies

Hello all, Although this is certainly elementary, I thought I'd share it since it may help someone in a pinch; here is my simple technique to...

Hello all, Although this is certainly elementary, I thought I'd share it since it may help someone in a pinch; here is my simple technique to create a preliminary schematic from a populated 1 or 2 sided pcb: http://ipx1.cybertheque.net/homebrew/pcb-photog/ Regards, Michael Grigoni Cybertheque Museum


What is your favorite PCB software?

Started by Joel in comp.arch.embedded10 years ago 54 replies

Just curious about what everyone uses. I've been using Orcad PCB editor.

Just curious about what everyone uses. I've been using Orcad PCB editor.


Looking for online Flex PCB manufacturer

Started by Anton Erasmus in comp.arch.embedded10 years ago 4 replies
PCB

Hi, This is the first time I am venturing into flex PCB territory. The PCB houses I normally use do not do flex PCBs. I am looking...

Hi, This is the first time I am venturing into flex PCB territory. The PCB houses I normally use do not do flex PCBs. I am looking for recommendations for companies that can do good quality double sided flex PCBs at a good price. Since we are doing low quantities, the NRE costs are very important. Thanks in advance Anton Erasmus


Protection Earth over PCB

Started by Jürgen Veith in comp.arch.embedded12 years ago 1 reply
PCB

maybe this question is a bit off topic here, but for a phase control thyristor design I plan to use the Tyco Mate-N-Lok conntectors for a one...

maybe this question is a bit off topic here, but for a phase control thyristor design I plan to use the Tyco Mate-N-Lok conntectors for a one hp 3 phase AC motor. These connectors have UL up to 600VAC and plugged only without load. I am shure that the PCB design can blow 3x16 Amp fuses but I am not shure wether I can use the PCB to provide PE to the motor or I have to do the complete PE w...