New Equipment | Assembly Services
introduction: ZH series is a fully automatic SMT placement machine, it can be mounted various of component through a vacuum nozzle, it is currently on the market cost-effective automatic placement equipment. The machine is suitable for most of the
Electronics Forum | Wed Mar 03 11:30:18 EST 1999 | dave reese
Are square pads more difficult to wavesolder than round pads? I am referring to a through hole board.
Electronics Forum | Thu Mar 04 12:49:49 EST 1999 | SMTASSY
| Are square pads more difficult to wavesolder than round pads? | I am referring to a through hole board. | Usualy square pads are for indication of pin 1 on a DIP for example. There might be a difference in the capilary affect due to a different su
Used SMT Equipment | Pick and Place/Feeders
Automatic pick and place machine TP400V is the high cost-effective equipment in the market, it can pick and place variety of components by its vacuum nozzle. The machine can mount 0603、 SOIC、PLCC、QFP IC and many SMD chip components; optional vision
Used SMT Equipment | Pick and Place/Feeders
Automatic pick and place machine 210 is the high cost-effective equipment in the market, it can pick and place variety of components by its vacuum nozzle. The machine can mount 0402、 SOIC、PLCC、QFP IC and many SMD chip components; optional vision pos
Industry News | 2010-06-16 14:00:47.0
Minneapolis, MN - The SMTA is pleased to announce that the program for SMTA International is finalized and available on-line at www.smta.org/smtai and registration is open. The conference will be held at the Walt Disney World Swan and Dolphin Resort in Orlando, Florida on October 24-28, 2010. This year's program allows the attendee to choose from 20 courses, 130 technical papers, 4 focused symposia, and numerous free offerings throughout the conference.
Industry News | 2020-01-20 16:42:42.0
The IPC APEX EXPO 2020 best technical conference papers in the domestic and international categories have been selected; the paper authors will receive their awards during the opening keynote session on Tuesday, February 4, 2020.
Parts & Supplies | Pick and Place/Feeders
Samsung CP45 multi cylinder J6701033B CD05-000030 MOTHERBOARD,CPU-NuPRO-E340;SBC,Q67 EP07-000205 J31051003A CPU Cooler EP12-000030A MTSMUP-HD022A-FOLDING_MIRROR FC09-001517A MIRROR_PLATE FC09-001518A MIRROR_CLAMP_1 FC09-001519A MIRROR_CLAMP_2
Parts & Supplies | SMT Equipment
NOZZLE NXT-H04-7.0G (AA07K00/AA07K04/AA07K05) Spare Name: AA07K00 AA07K04 AA07K05 NXT-H04-7.0G Specification: H04 Placing Head Nozzle Dia, 7.0 w / rubber pad NXT H04 7.0G nozzle FUJI NXT H01 PICK UP NOZZLE ¢ Applicable models: FUJI NXT H
Technical Library | 2023-05-02 19:06:43.0
As 0402 has become a common package for printed circuit board (PCB) assembly, research and development on mounting 0201 components is emerging as an important topic in the field of surface mount technology for PWB miniaturization. In this study, a test vehicle for 0201 packages was designed to investigate board design and assembly issues. Design of Experiment (DOE) was utilized, using the test vehicle, to explore the influence of key parameters in pad design, printing, pick-andplace, and reflow on the assembly process. These key parameters include printing parameters, mounting height or placement pressure, reflow ramping rate, soak time and peak temperature. The pad designs consist of rectangular pad shape, round pad shape and home-based pad shape. For each pad design, several different aperture openings on the stencil were included. The performance parameters from this experiment include solder paste height, solder paste volume and the number of post-reflow defects. By analyzing the DOE results, optimized pad designs and assembly process parameters were determined.
Technical Library | 2013-01-17 15:37:21.0
A problem exists with electroless nickel / immersion gold (ENIG) surface finish on some pads, on some boards, that causes the solder joint to separate from the nickel surface, causing an open. The solder has wet and dissolved the gold. A weak tin to nickel intermetallic bond initially occurs, but the intermetallic bond cracks and separates when put under stress. Since the electroless nickel / immersion gold finish performs satisfactory in most applications, there had to be some area within the current chemistry process window that was satisfactory. The problem has been described as a 'BGA Black Pad Problem' or by HP as an 'Interfacial Fracture of BGA Packages…'[1]. A 24 variable experiment using three different chemistries was conducted during the ITRI (Interconnect Technology Research Institute) ENIG Project, Round 1, to investigate what process parameters of the chemical matrix were potentially satisfactory to use and which process parameters of the chemical matrix need to be avoided. The ITRI ENIG Project has completed Round 1 of testing and is now in the process of Round 2 TV (Test Vehicle) build.
The PCB Footprint Expert is a powerful CAD library development tool powered by our own proprietary CAD LEAP Technology (Libraries Enhanced with Automated Preferences). It is packed with very powerful advanced library management features that cuts foo
JDSU FST-2802 Acterna Ethernet and Fibre Channel Services Module The FST-2802 is a handheld Ethernet, Fibre Channel, and IP services test instrument designed to meet the needs of service providers for turning up and troubleshooting these variou
Investigation of Pad Cratering in Large Flip-Chip BGA using Acoustic Emission SMTnet Express January 3, 2013, Subscribers: 26072, Members: Companies: 9076, Users: 34113 Investigation of Pad Cratering in Large Flip-Chip BGA using Acoustic Emission
| https://pcbasupplies.com/selective-soldering/pillarhouse/
& Accessories Work Table 36" - 38" 40" - 48" 54" - 62" 63" - 72" Parts & Accessories Wrench Holder Wall Mount Soldering Robots PCB Support Systems ezLOAD 120 Pick-and-Place Stencil Printers ezLOAD 40 Pads and Accessories Pick-and-Place ezLOAD Flex ezLOAD Replacment Pads
