Industry Directory | Consultant / Service Provider / Manufacturer
PFC Flexible Circuits Limited designs, manufactures, and assembles flexible circuits; single-sided, double-sided, multilayer and rigid flex. We are ISO 9001 and 13485 approved.
Industry Directory | Consultant / Service Provider / Manufacturer
Plus Circuits is PCB Manufacturer in China since 2008, specialize in Quick Term Prototyping, HDI, Rigid-Flex, Aluminum, Multilayer Flex, High Frequency, Impedance, Blind/Buried Via, PTFE, Rigid Polyim
Gold finger PCB/Impedance computer circuit board Layer:6 Thiness: 2.0mm Surface treatment: ENIG+Hard gold plated on gold finger Impdance control: Single-ended 50ohm, differential 90 ohm Application: Computer
New Equipment | Test Equipment
Key Features & Specifications Basic accuracy Basic impedance accuracy: +/- 0.08 % Frequency 40 Hz to 110 MHz More features Accurate measurement over wide impedance range and wide frequency range Powerful impedance analysis
Electronics Forum | Fri Jan 22 18:05:44 EST 1999 | David
Could anyone send me equations to calculate controlled impedance of traces on circuit boards. I am most interested in the buried traces in multi layer boards. Thanks, David - piengr@verinet.com
Electronics Forum | Mon Feb 18 15:20:43 EST 2008 | kennyg
A PCBA contains a couple of parts that are not sealed and can't be water washed. We hand solder these with no-clean after everything else is water washed. The designer says the no-clean residue must be completely removed so that it will not affect
Used SMT Equipment | In-Circuit Testers
Key Features & Specifications •Plots impedance parameters •Calibration / compensation capabilities for test fixtures •Equivalent circuit analysis Description E5061B-3L5 LF-RF network analyzer option + 005 Impedance analysis option - NA plus ZA i
Used SMT Equipment | In-Circuit Testers
Agilent-Keysight E4991A Base Frequency: 100 KHz Max Frequency: 3 GHz Agilent/HP E4991A RF Impedance/Material Analyzer The E4991A RF impedance/material analyzer offers ultimate impedance measurement performance and powerful built in analysis fun
Industry News | 2003-04-01 08:13:08.0
The Introbotics equipment boosts controlled impedance testing productivity and accuracy by a factor of ten compared to the handheld probing techniques.
Industry News | 2003-06-24 08:14:51.0
R/flex� 3850 laminate is produced in a range of copper and LCP thicknesses, just as the single-clad laminate, and is available in standard panel formats.
Parts & Supplies | Circuit Board Assembly Products
1) 160*100mm, FR-4 CTI ≥ 600V 2) 8 layer impedance control 3) Copper weight(finished inner/outer): 1 oz 4) LPI Green mask/white silk 5) Min hole 0.19mm, 5/3 track/gap 6) 1.6mm +/-10% thick 7) Immersiong gold over nickel
Parts & Supplies | Circuit Board Assembly Products
1). FR-4, Tg 170, 1 oz copper finished 2). 4 layers, 2.5mm thick 3). Min.track/space: 4/4 mil 4). Min. hole size: 0.25mm 5). 50 ohm, 100+/-10% ohm differentail /single impedance control 6). Immersion gold
Technical Library | 2020-03-09 10:50:17.0
A customer called the Helpline seeking advice for cleaning no-clean fluxes prior to applying a conformal coating. The customer's assemblies were manufactured with a no-clean rosin based solder paste (ROL0) and were cleaned with an isopropyl alcohol (IPA) wash. After cleaning, a white residue was sometimes found in areas with high paste concentrations and was interfering with the adhesion of the conformal coating (Figure 1). For conformal coatings to adhere properly, the printed circuit board (PCB) surface must be clean of fluxes and other residues. In addition, ionic contamination left by flux residues can lead to corrosion and dendrite growth, two common causes of electronic opens and shorts. Other residues can lead to unwanted impedance and physical interference with moving parts.
Technical Library | 2010-06-03 22:23:03.0
Strategies for successful design and manufacture of microwave multilayer printed circuit boards. All aspects from pad registration, dimensional stability, impedance fluctuation, fusion bonding, thermal ageing, z-axis expansion, reliability, to Young's mod
A new task kit is available for LCR-Reader-MPA; the Professional. This bundle consists of and LCR-Reader-MPA, an NIST traceable calibration certificate, LCR-Reader Kelvin Probe Connector, spare bent tweezer tips, Offset Calibration Board, and chargin
Training Courses | | | Other Courses
Other courses related to electronics manufacturing and assembly
Training Courses | ONLINE | | PCB Design Courses
The PCB design courses teach students the process, techniques and tools needed to design layout of printed circuit boards.
Career Center | derry, New Hampshire USA | Engineering
Exciting opportunities with leading companies. Seeking several design engineers for backplane assembly, photonics and printed circuit boards. Good knowledge of impedance control.
Career Center | Dallas, Texas USA | Engineering
Job description: Engineer is responsible for the design of RF, Microwave and support circuitry for miniaturized Rf/Wireless modules utilizing highlt integrated semiconductors and an array of substrate and packaging technologies. Will design, simula
Career Center | toronto, toronto Canada | Engineering
Technical Skills • Plan, Design, Implement , Build Electronic Devices according to specifications • Inspect, Diagnose, Repair, Replace, Calibrate, Modified Electronic Devices • Use Blue Prints, Drawings, Diagrams, Measuring instruments Computer Ski
Circuits Handbook (5th Edition) Author: Clyde F. Coom
Imagineering, Inc. | https://www.pcbnet.com/blog/controlling-signal-integrity-in-high-speed-pcb-design/
. Signal integrity issues occur when: The shape of a signal changes from the intended state. Electrical noise degrades the signal to noise ratio Undesired noise influences other signals and circuits on a PCB
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/sonoscan/support/publications
As published in Circuits Assembly Magazine, Nov. 2017 MUF AND WAFERS GET NEW ACOUSTIC TOOL As published in Silicon Semiconductor Issue VI 2013 MATCHED TOOLS FOR ACOUSTIC MICRO-IMAGING As published in Evaluation Engineering, Feb 2016 WARPED WAFERS
