double sided pcb

"double sided pcb" search results in the Electronics Forums



12781 result s found for "double sided pcb" in the Electronics Forums

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Miss Prints

Sep 4, 2008 | Can someone tell me what is the best way to clean miss printed PCB? We do not have a board washer and would like to know what are the best wipes to use.

Juki pick and place ?

Sep 2, 2008 | excellent for fast setup, but file structure for programs is a proprietry binary format, so have to generally use JUKI supplied software to program machines and lines - JUKI EPU or HLC etc. One problem with file format is can not accept multiple placement sequences on single panel - ie 1 PCB with R1 panelised with another PCB with R1 also. You have to manually massage Centroid data to differentiate Refdes to make Panel 1 PCB...ie R1-1, R1-2 - Flattened Placement sequence. There is no tool in JUKI Software to do this.Also only allows 5 characters for Refdes, minor thing but can be annoying if you come across grouped different PCB's on one panel.

Electro-mechanical assembly specification?

Sep 2, 2008 | > I am new to the board so be gentle with me. > There are standards such as IPC-610 for PCB > assembly, IPC-600 for bare boards, etc. Is there > a "standard" for electro-mechanical assembly? Is > there an IPC standard or any other industry > approved standard that can be applied for or > achieved? > > Thanks for your help in advance! > I am new to the board so be gentle with me. > There are standards such as IPC-610 for PCB > assembly, IPC-600 for bare boards, etc. Is there > a "standard" for electro-mechanical assembly? Is > there an IPC standard or any other industry > approved standard that can be applied for or > achieved? > > Thanks for your help in advance! > I am new to the board so be gentle with me. > There are standards such as IPC-610 for PCB > assembly, IPC-600 for bare boards, etc. Is there > a

looking for HASL TIN thickness specification

Sep 2, 2008 | In order to check pcb quality by HASL TIN thickness plating repeatability, looking for any specification for the above.

Electro-mechanical assembly specification?

Aug 26, 2008 | I am new to the board so be gentle with me. There are standards such as IPC-610 for PCB assembly, IPC-600 for bare boards, etc. Is there a "standard" for electro-mechanical assembly? Is there an IPC standard or any other industry approved standard that can be applied for or achieved? Thanks

DEK PumpPrint - Any users?

Aug 22, 2008 | Mike, I do not believe the PumpPrint stencils are use for applying paste. We used them for applying adhesive on a particular PCB that required tall dots for larger components. We use the ProFlow system exclusively for paste and adhesive applications. We like it.

PCB becomes darken (yellownish)

Aug 22, 2008 | Sulfur is probably the culprit. Board supplier should be providing boards with anti-tarnish sheets

Block repeat and fiducial relation

Aug 19, 2008 | It depends on whether the Fiducials are Circuit Fiducials (located on the PCB) or Block Fiducials (located on the Panel) His way would be for Block Fiducials.

Missprint PCB cleaning

Aug 18, 2008 | Try Avantec Topklean EL-60, can clean off solder paste or uncured glue, is hydrocarbon based cleaner

Software for .BRD / .CAD / .PCB extension

Aug 18, 2008 | Easiest way is do Google search for these viewers. There are so many I don't know where to even begi

Tantalum influence on other components

Aug 12, 2008 | hai, in our smt process we are facing the following problem. The Case A tantalum capacitor used in our PCB assembly - during reflow process get shifted, due to which other components nearby that also found missing. what are the causes for this problem

Is the demand for in-circuit testing still high for PCBA?

Aug 7, 2008 | As the pcb design is getting smaller and smaller, do you think that in-circuit testing is still applicable considering its limitations?

Oxidation on PCB's

Aug 4, 2008 | Silver saver paper will work as well. Most board houses slip a sheet between your boards when they

Labels @ Reflow Pb-Free

Aug 1, 2008 | We use a Brady label PTL-13-457 out of a TLSPClink printer on a 63/37 PCB. This label is supposed to go to Pb free temp but we have not actually tested it yet. - Jerry

Removal of silk screen on PCB??

Jul 24, 2008 | Not on a pad, just off the mask. I cant tell you why, then I would have to kill you! :)

Removal of silk screen on PCB??

Jul 23, 2008 | On or off a pad? If on pad just take a soldering iron and some solder to it. Wick off to relevel.

PCB conformal coating

Jul 3, 2008 | Re: item 3 - there are ultrasonic thickness machines (Panametrics makes one) that can measure coatin

Wave solder bridging

Jun 26, 2008 | One way we handle this situation is to produce a wave pallet that presents the pcb at an angle to the wave to stagger the leads of the connector.

how to protect pads while applying solvent green mask? cure?

Jun 18, 2008 | hi i'm not experienced in creating pcbs but i have good background, and i have a bunch of questions. i have no access to world wide known pcb chemicals but i managed to get a cramolin positiv spray and i don't know if it is still usable or not? (didn't use it yet) i also got green/solder mask paste that the seller told me can dissolve in acetone, and has to be soluted, as it is thick in the paste form. it is packaged into a plastic jar, one like hair cream's or gel's package (and no tags what-so-ever). i can go through all the steps of creating a pcb, from schematic design to etching , mounting and drilling and maybe tinning. but what i really don't know how to do is coating the pcb with solder mask without hiding the pads and holes? also i don't know which method is used for my type of solder mask to cure it, thermal, UV or what? my last is what quantity of acetone per unit mass

Barcodes for PCBs - what systems?

Jun 14, 2008 | There are several systems on the market. Consider 2D Matrix Barcode, since it will only use a very small area of the pcb. Laser machines for this is among others... /Sincerely

ce mark logo on pcb ?

Jun 11, 2008 | To get started, look here:

X-Outs and Panel Arrays

May 14, 2008 | We produce High mix very low volume Military assemblies. So a typical order mya be for 50 pcb's, at a 5 up array. Do you work in the fab shop? Scott

Processing x-outs

May 8, 2008 | Are there recommended image reject marks in order to process x-outs from a PCB supplier? Do they have to be in the copper or will silkscreen suffice?

What happens to LPI Solder Mask on the RF4 PCB During Reflow?

Apr 25, 2008 | Find out what the Tg of the LPI is. Below - rigid, above - flexible.

Floor life pcb assembly

Apr 23, 2008 | The need to prebake boards to remove moisture from the board [to prevent voiding] prior to wave sold

What happens to LPI Solder Mask on the RF4 PCB During Reflow?

Apr 21, 2008 | Then how the hell do they expect you to set up your processes?

What happens to LPI Solder Mask on the RF4 PCB During Reflow?

Apr 21, 2008 | Hi dave, sorry for my late reply...right now do not have info about the LPI and I'm not allowed t

What caused this reflow issue?

Apr 14, 2008 | Your problem is process you need to eliminate and there are so many causes to considered. 1.your solder paste 2.your PCB pads 3.your component 4.your profile 5.your printer 6.your placement. you need to isolate all these one of this is your problem.

Pressfit connector

Apr 10, 2008 | Hi,we are looking to use Press fit connector on our PCB assemblies. Did anyone out there have any issue with press fit connector? Thank Bruno

Gel-Flex

Apr 4, 2008 | ZOINKS!! Yet another thread on PCB support. These discussions get *almost* as heated as - dare I even mention - stencil cleaning. Let the fireworks begin!

Min spacing for land patterns from PCB edge

Mar 24, 2008 | Is this what you are looking for? We do this on quite a few boards and it has eliminated component p

Min spacing for land patterns from PCB edge

Mar 21, 2008 | Boardhouse, would it be possible to attach a picture of such a routed slot together with a V cut? I

Min spacing for land patterns from PCB edge

Mar 20, 2008 | Thnx Dave! I have not seen anyone as yet using fixtures to support brds while using Pizza cutters. W

Min spacing for land patterns from PCB edge

Mar 19, 2008 | Here's what we suggest: * Keep a 5-mm space between a board edge and a ceramic capacitor. * Mount

Wire soldering

Mar 3, 2008 | I'm curious myself. What IS the application that stuff that big would have to go through a PCB?? 3-phase, 460V?

PCB Depaneling Router

Feb 29, 2008 | For those wanting to fill-out their basic understanding of flexible circuits, there's a pdf version

PCB Depaneling Router

Feb 28, 2008 | Check out IPTE.

Wire soldering

Feb 28, 2008 | In the design stages, we have been asked about the difficulty in soldering a 4AWG (stranded) wire to a PCB for a high current application. Questions - can this be hand soldered normally? What about wave? Process will probably be Pb-Free. All opinions/experiences welcomed.

THT manual assembly worker instructions

Feb 25, 2008 | We also used color coding of bins, along with a picture of where to put the part on the PCB. Also split up parts that look similar (to seperate work stations) when possible. good luck

Fuji Programming

Feb 21, 2008 | Thank you all for great responses. Now what is a Gerber file? Is it just a PCB layers and nothing useful as far as for programming? Thanks again.

PCB outer dimensions

Jan 22, 2008 | All, Thnx for the replies! The brd thickness is 0.062", hence no confusion there. Have no idea

PCB outer dimensions

Jan 21, 2008 | We think maybe 50 thou would be a more approachable corner radius. Why does your customer want to

PCB Support in Pick and Place

Jan 16, 2008 | We build all our own stuff now but in the past we have bought some SMT pallets through Midwest Circu

PCB Support in Pick and Place

Jan 16, 2008 | Give your current supplier a shot. They probably can do a good job for you. Most wave solder pallet

Stainless Steel tabs in brd assemblies

Jan 3, 2008 | Patrick, thnx for your info. The tabs will be soldered on a PCB pad just like an SMT component. Will let all know once I have some more info.

Pasting a thru-hole part at SMT

Dec 5, 2007 | Hi, Is depend on the size, you may also able to using different type of solderpaste to accomdate instead on PCB. Hun

Ruggedized PCB Assembly

Nov 22, 2007 | Paul: If your customer "resolders suspected IC lead(s), problem goes away" - It's not an 'black pad'

Ruggedized PCB Assembly

Nov 21, 2007 | Maybe you're not be getting all the flux removed in your wash process and your customer thinks the d

RoHS PCB Questions

Nov 19, 2007 | Bruce, Does the thicker barrel plating for "RoHS-Rated" PCBs alleviate some of the copper dissolu

RoHS PCB Questions

Nov 19, 2007 | Hi Bruce, What is your (and everyone elses)noticable defect if you reach the higher temps with FR

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