Industry Directory | Manufacturer's Representative
engineering services for pcb
Industry Directory | Manufacturer
Quote quality printed circuit boards in seconds, no sign-up required. New services provide expanded prototyping options for printed circuit boards. FREE tooling for Plot & Go orders!
ProntoVIEW-MARKUP is assembly CAD Viewer & Gerber Viewer software used by electronics manufacturers to quickly find components, pin, shorts between traces, etc. ProntoVIEW-MARKUP is also a redline tool that allows annotation of the assembly to creat
New Equipment | Test Equipment
QYSMT MOREL PMP-500 First Article Inspection Tester PMP-500 First Article Inspection Tester is mainly used for the first article inspection of the SMT production process in electronics factories. The operation of the tester for the first unit of PC
Electronics Forum | Wed Dec 04 18:59:34 EST 2002 | Steve Godber
Is there a Technical graph/chart/table guideline for designers on which Solder Sphere/pad size is plotted vs. pitch design to acheive maximum SJR?
Electronics Forum | Tue Feb 07 10:11:06 EST 2006 | amol_kane
hi, the only way you can say that the process is in/out of control is to plot the values (mean) of a metric against the 3 sigma limits for a Xbar chart, or plot a individuals run chart. you can also do a capability analysis nased on a metric (say,
Used SMT Equipment | Soldering - Reflow
1 unit KIC thermal profiler for sales, 6 channel thermal plot with prediction software. contact us now..
Used SMT Equipment | In-Circuit Testers
Keithley 4200-SCS Semiconductor Characterization System The Keithley Interactive Test Environment (KITE) is designed to let users understand device behavior quickly. When running a test sequence, users can view results and plots for completed t
Industry News | 2003-06-20 08:54:22.0
Service Pack 1 for P-CAD 2002 released today
Industry News | 2003-06-10 08:16:44.0
The following text describes the application of NWA Quality Analyst to quality control in the assembly of electronic components.
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.
Technical Library | 2024-04-29 21:39:52.0
In this paper, we develop and put into practice an Automatic Optical Inspection (AOI) system based on machine vision to check the holes on a printed circuit board (PCB). We incorporate the hardware and software. For the hardware part, we combine a PC, the three-axis positioning system, a lighting device and CCD cameras. For the software part, we utilize image registration, image segmentation, drill numbering, drill contrast, and defect displays to achieve this system. Results indicated that an accuracy of 5µm could be achieved in errors of the PCB holes allowing comparisons to be made. This is significant in inspecting the missing, the multi-hole and the incorrect location of the holes. However, previous work only focusses on one or other feature of the holes. Our research is able to assess multiple features: missing holes, incorrectly located holes and excessive holes. Equally, our results could be displayed as a bar chart and target plot. This has not been achieved before. These displays help users analyze the causes of errors and immediately correct the problems. Additionally, this AOI system is valuable for checking a large number of holes and finding out the defective ones on a PCB. Meanwhile, we apply a 0.1mm image resolution which is better than others used in industry. We set a detecting standard based on 2mm diameter of circles to diagnose the quality of the holes within 10 seconds.
https://www.ascen.ltd/Products/PCB_board_assembly_system/vision_measurin/507.html Vision Measuring Machine and image measuring instrument can be used for dimensional accuracy measurement of various molds, aircraft, automobile, mobile phone, computer,
https://www.ascen.ltd/Products/PCB_board_assembly_system/vision_measurin/507.html Vision Measuring Machine and image measuring instrument can be used for dimensional accuracy measurement of various molds, aircraft, automobile, mobile phone, computer,
Career Center | Delavan, Wisconsin USA | Production
*Set up printers, placement machines and reflow ovens for production. *Adjust machine parameters and CAM programs *Optimize part placement and feeder applications through CAM programs *Manipulate SPC data for solder paste height measrurements and int
Career Center | San Jose, California USA | Engineering
Associate Mechanical Engineer The main role of the Associate Mechanical Engineer will be to design, develop, and build apparatuses and fixtures, which purpose will be to test and control our clients' manufacturing output. Each of these apparatuses a
Career Center | kerala, any ware India | Production
i have experience in • Operation of wave soldering and water cleaning machine • Inspection ( Reflow and Post Wave ) • Pre Reflow inspection in SMD • Component forming stuffi
Career Center | Erode, Tamilnadu India | Engineering
Professional Summary 3+ years of experience in the PCB CAM engineering Exposure to FRONTLINE GENESIS 2000 Having exposure in UCAM Exposure to Create, Array & Panelize it for manufacturability Experienced in Creating impedance cou
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/dage/paragon-materials
Analyze every component. Watch failure occur with live plotting of data, pause and alter tests if necessary Perform difficult and non-standard test procedures with custom routines See trends and grouped sample spreads
Surface Mount Technology Association (SMTA) | https://www.smta.org/panpac/Pan-Pacific-2020-Program.pdf?v=20060405647
:45PM Lehua/Hau Weibull Analysis 101: Plotting and Interpretation *Ron Lasky, Ph.D., Indium Corporation Milo Conformal Coating Characterization *Prabjit Singh, Ph.D., IBM Corporation 1:45PM - 2
