Industry Directory | Manufacturer
professional manufacturer of pcb
Industry Directory | Manufacturer
UWELLPCB.com is the PCB supplier. We offer PCB from single side board, double side PCB to 32layer board,including the Rigid PCB, Flex PCB, Rigid-flex PCB,Quick-turn prototype and PCB assembly
New Equipment | Fabrication Services
HDI PCB Manufacturer & Assembly – One-stop services from China -HDI (high-density interconnection board) is a compact circuit board designed for small capacity users. Compared with ordinary PCB, the most significant feature of HDI is that the wiri
New Equipment | Fabrication Services
Minimum line width/space: 4mils Surface finish: immersion gold Board thickness: 1.60MM Minimum drilled hole diameter: 4mils Copper thickness: 0.5oz Special process : 0.25MM BGA , resin plugged vias in BGA pads
Electronics Forum | Thu Jun 30 03:14:34 EDT 2016 | andrzej
Looks like "black pad" issue. More about this here: http://www.ipc.org/feature-article.aspx?aid=Black-pad Definitly PCB supplier need to improve the process.
Electronics Forum | Wed Aug 24 22:11:36 EDT 2016 | davef
I'd guess that "black pad" is not the issue that you need to address, because only 2 of your 5 test points has the problem that we seem to be discussing. I'd expect "black pad" problems to be more wide spread. Something is going on at those two locat
Used SMT Equipment | THT Equipment
Spare parts for Universal Radial and Axial through-hole insertion machines Model specifications: (RAD5 6360D, RAD8 6380A, RAD8 XT 6380B, VCD5 6241D, VCD8 6241F, VCD Dual 6292A, SEQ 2596A, SEQ5, SEQ8). UIC Part Number / Part Description 15754 O
Used SMT Equipment | Pick and Place/Feeders
Spare parts for Universal Radial and Axial through-hole insertion machines (RAD5 6360D, RAD8 6380A, RAD8 XT 6380B, VCD5 6241D, VCD8 6241F, VCD Dual 6292A, SEQ 2596A, SEQ5, SEQ8). UIC Part Number / Part Description 15754 O'RING 15755 O'RING 15759
Industry News | 2018-10-18 11:19:07.0
How To Design Cost-Effective PCBs
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Parts & Supplies | Assembly Accessories
SAMSUNG CP40 SM319 SOCKET HEAD SCREW M3x8 J1300170 SAMSUNG CP40 S2000 CA SR CABLE ASSY CA-PW01 J9061019A SAMSUNG CP40 S2000 CA SENSOR CABLE ASSY CA-A06 J9061017A-AS SAMSUNG CP40 S2000 MULTI STICK COVER J7252011B J7252011B SAMSUNG CP40 CP63 HEX SU
Parts & Supplies | Assembly Accessories
Detailed Product Description Part Name: Flat Belt Part Number: J1301665 Material: Plastic Fuction: Conveyer Brand: Samsung Use: CP45 Plastic SMT Conveyor Belt Samsung CP45 Flat Belt Part Number J1301665 Parameter: Brand Part Name Part Nu
Technical Library | 2023-01-10 20:15:42.0
Over the past years there has been consistent growth in the use of electroless nickel / immersion gold (ENIG) as a final finish. The finish is now frequently being used for PBGA, CSP, QFP and COB and more recently gathered considerable interest as a low cost under-bump metallization for flip chip bumping application. One of the largest users for this finish has been the telecommunication industry, were millions of square meters of PCBs with ENIG have been successfully used. The nickel layer offers advantages such as multiple soldering cycles and hand reworks without copper dissolution being a factor. The nickel also acts as a reinforcement to improve through-hole and blind micro via thermal integrity. In addition the nickel layer offers advantages such as co-planarity, Al-wire bondability and the use as contact surface for keypads or contact switching. Especially those pads, which are not covered by solder need a protective coating in corrosive environment – such as high humidity or pollutant gas.
With the development of miniaturization of assembly components, the layout area and pattern design area of PCBs have also been continuously reduced, and PCB manufacturers are constantly updating the production process to conform to the development tr
Events Calendar | Tue Jan 23 00:00:00 EST 2018 - Tue Jan 23 00:00:00 EST 2018 | New Milford, Connecticut USA
FREE Webinar: Eliminate Circuit Board Problems and Failure Modes
SMTnet Express March 7, 2013, Subscribers: 26214, Members: Companies: 13311, Users: 34412 PTH Core-to-Core Interconnect Using Sintered Conductive Pastes The market for high-layer-count printed circuit boards (PCB) containing blind and buried vias
smeared solder paste pattern. A typical pad size for
Imagineering, Inc. | https://www.pcbnet.com/blog/hdi-pcb-advantages-and-applications/
. Functionality is also improved as blind vias and via-in-pad allow components to be placed closer together. When the transmission range from component to component is reduced, transmission times and crossing delays are decreased, while signal strength is increased. Smaller (and Smaller
GPD Global | https://www.gpd-global.com/co_website/pdf/lead-former/CF8-Transport-Wheel-Maintenance-817-1-18.pdf
. Place a 1/8" bent hex "T" wrench (provided in tool kit) in the hole located toward the end of the transport wheel shaft and pull firmly to unlock the shaft. NOTE
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