High Tech, Quick Turn, Manufacturer of PCB's up to 44 layer count. Specializing in Prototype and R&D. Mil-Spec 31032 & 55110 Certified. Located in Fremont, CA & Amesbury, MA.
Industry Directory | Manufacturer
Professional, Reliable,High Quality,Low Cost, Rapid Delivery PCB manufacturer
sales5 at et limited(.)cn china aluminium pcb, pcb copper, pcb service, pcb printed circuit , pcb board key speciafications/special features: Base material: Aluminum pcb board
sales5_at_etlimited_cn PCB assembly service, PCB assemblies,PCBA Contract, Printed circuit boards assembly. China 8 layers PCB&PCBA supplier and exporter,8 layers PCBA with SMT,BGA and electronical components. This PCBA's key s
Electronics Forum | Wed Aug 11 18:36:03 EDT 2004 | davef
90 Knoop. Q2: Thickness is 4 to 10 u" for Au and 300 to 400 u" for nickel A2: This looks like a ENIG spec. Although, the Ni is quite heavy, 150 uin is sufficient for most applications. [IPC-4552 ENIG specification: * Gold thickness of 0.075 - 0.125
Electronics Forum | Wed Dec 28 16:03:53 EST 2005 | Chris
I have lots of experience with thermosonic gold ball bonding. You can read the literature and you will probably find some papers that say you can do it. I have never been able to do it. We gold ball bond all day long with little problems at all bu
Industry News | 2003-05-19 10:06:43.0
The PCB is available with a maximum panel size of 406-by-460mm and a minimum board thickness of 0.8mm.
Industry News | 2018-10-18 10:16:53.0
Solder Tinned Pads vs Gold Plated Pads - The Importance of Selecting the Proper Surface Finish
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Parts & Supplies | Pick and Place/Feeders
CYBEROPTICS laser/CYBEROPTICS camera:JUKI laser(570/620/730/740/750/760/2010/2020/2030/2040/2050/2060/2070/2080/KJ-01/KJ-02//FX-1/FX-2/FX-3/3020R/JX-100 laser unit),YAMAHA laser,SAMSUNG laser,TENRYU laser,PHILIPS(ASSEMBLEON) FCM PPU laser,Autotronik
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Parts & Supplies | Pick and Place/Feeders
CYBEROPTICS laser/CYBEROPTICS camera:JUKI laser(570/620/730/740/750/760/2010/2020/2030/2040/2050/2060/2070/2080/KJ-01/KJ-02//FX-1/FX-2/FX-3/3020R/JX-100 laser unit),YAMAHA laser,SAMSUNG laser,TENRYU laser,PHILIPS(ASSEMBLEON) FCM PPU laser,Autotronik
Technical Library | 2017-09-07 13:56:11.0
As a surface finish for PCBs, Electroless Nickel/Electroless Palladium/Immersion Gold (ENEPIG) was selected over Electroless Nickel/Immersion Gold (ENIG) for CMOS image sensor applications with both surface mount technology (SMT) and gold ball bonding processes in mind based on the research available on-line. Challenges in the wire bonding process on ENEPIG with regards to bondability and other plating related issues are summarized.
Technical Library | 2020-10-27 02:07:31.0
For companies that choose to take the Pb-free exemption under the European Union's RoHS Directive and continue to manufacture tin-lead (Sn-Pb) electronic products, there is a growing concern about the lack of Sn-Pb ball grid array (BGA) components. Many companies are compelled to use the Pb-free Sn-Ag-Cu (SAC) BGA components in a Sn-Pb process, for which the assembly process and solder joint reliability have not yet been fully characterized. A careful experimental investigation was undertaken to evaluate the reliability of solder joints of SAC BGA components formed using Sn-Pb solder paste. This evaluation specifically looked at the impact of package size, solder ball volume, printed circuit board (PCB) surface finish, time above liquidus and peak temperature on reliability. Four different BGA package sizes (ranging from 8 to 45 mm2) were selected with ball-to-ball pitch size ranging from 0.5mm to 1.27mm. Two different PCB finishes were used: electroless nickel immersion gold (ENIG) and organic solderability preservative (OSP) on copper. Four different profiles were developed with the maximum peak temperatures of 210oC and 215oC and time above liquidus ranging from 60 to 120 seconds using Sn-Pb paste. One profile was generated for a lead-free control. A total of 60 boards were assembled. Some of the boards were subjected to an as assembled analysis while others were subjected to an accelerated thermal cycling (ATC) test in the temperature range of -40oC to 125oC for a maximum of 3500 cycles in accordance with IPC 9701A standard. Weibull plots were created and failure analysis performed. Analysis of as-assembled solder joints revealed that for a time above liquidus of 120 seconds and below, the degree of mixing between the BGA SAC ball alloy and the Sn-Pb solder paste was less than 100 percent for packages with a ball pitch of 0.8mm or greater. Depending on package size, the peak reflow temperature was observed to have a significant impact on the solder joint microstructural homogeneity. The influence of reflow process parameters on solder joint reliability was clearly manifested in the Weibull plots. This paper provides a discussion of the impact of various profiles' characteristics on the extent of mixing between SAC and Sn-Pb solder alloys and the associated thermal cyclic fatigue performance.
ACI Technologies Inc. (ACI) is a scientific research corporation dedicated to the advancement of electronics manufacturing processes and materials for The Department of Defense and industry. This video provides an overview of our commercial service
Events Calendar | Wed Apr 20 00:00:00 EDT 2022 - Wed Apr 20 00:00:00 EDT 2022 | ,
Virtual Course: Selection Criteria of Surface Finish for Next Generation PCB Technologies
Career Center | Clarksburg, Maryland USA | Engineering,Management,Research and Development,Technical Support
We are currently seeking a Senior Manufacturing Engineer for our Clarksburg, Maryland location. The candidate must be driven with a strong ability to multi-task under pressure. Responsibilities: The successful candidate will be responsible for:
Career Center | Alta Loma, California | Engineering,Quality Control,Research and Development
Rigid and Flexible Printed Circuits Plating and Metal Finishing Operations Six Sigma Work Instruction Documentation Process Development Equipment Selection and Specification New Facility Startup Air, Water and Hazardous Waste Environmental Reporting
SMTnet Express, September 7, 2017, Subscribers: 30,782, Members: Companies: 10,712, Users: 23,761 Challenges on ENEPIG Finished PCBs: Gold Ball Bonding and Pad Metal Lift Young K. Song and Vanja Bukva; Teledyne DALSA As a surface finish for PCBs
40731 | https://www.smta.org/smtai/SMTAI-2019-Technical-Program.pdf?v=200609010628
Surface Mount Technology Association (SMTA)
GPD Global | https://www.gpd-global.com/co_website/pdf/doc/Dispense-System-User-Guide-22100079K.pdf
field. 1. If you single-click on a field, press the lower left trackball key, and drag the cursor, you can be selective about the data selected. 2. If you double-click on a specific item within a field, you can select that single item (a sin- gle word, a
