Copper clad laminates (CCLs) with low dissipation factor (Df) are urgently needed in the fields of high-frequency communications devices. A novel resin matrix of modified poly (2,6-dimethyl-1,4- phenylene ether) (MPPE) and styrene-ethylene/butylene-styrene (SEBS) was employed in the fabrication of high-frequency copper clad laminates (CCLs). The composites were reinforced by E-glass fabrics, which were modified with phenyltriethoxysilane (PhTES). The composite laminates obtained exhibited impressive dielectric loss of 0.0027 at 10 GHz when the weight ratio of MPPE to SEBS was 5:1.
Millimeter-wave (mmWave) frequency applications are becoming more common. There are applications utilizing PCB technology at 60 GHz, 77 GHz and many other mmWave frequencies. When designing a PCB for mmWave frequency, the properties of the circuit materials need to be considered since they can be critical to the success of the application. Understanding the properties of circuit materials at these frequencies is very important. This paper will give an overview of which circuit material properties are ...
Screen Printer Help - 100MV UP100 or Quad 100MV --
I'm new to this forum. I recently purchased a 100MV Screen printer and unfortunately; it arrived damaged. I was able to turn the unit on and I was able to get the unit do the initiation process (ex. datums). When I tried to do a sample PRINT operation; then a vacuum menu window showed and immediately the LCD became non-responsive. I restarted the unit and still non responsive. I tried removing the IC of the LCD and the main board and re-installing it; and still no response. Any help will be appreciated.
Mydata Excel Macro for Programming -- Hello, Working with older Mydata model TP9-UFP and saw on the forum that there was an Excel macro people were using to create Mydata programs for import to machine. Could someone please help me in getting a copy of this? Thanks, Dave
ZESTRON is pleased to announce that it will host "Why Cleaning is Critical Before Conformal Coating" on Tuesday March 23rd, from 11:00 AM to 12:00 PM EDT. This is the first installment of the ZESTRON Academy 2021 Cleaning Webinar Series, and will be presented by our industry expert, Naveen Ravindran, M.S.Ch.E, Application Engineer.... | ZESTRON
IPC alerted members about the U.S. Environmental Protection Agency's (EPA) final risk management rules to reduce exposure to five persistent, bioaccumulative, and toxic chemicals (PBTs). The alert calls attention to the rules, which went into effect February 5, 2021, and to one of the five PBTs with a history of use in electronics: phenol, isopropylated, phosphate (3:1) (known as PIP (3:1)).... | IPC
SMTA - Surface Mount Technology Association is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies.
IPC - Association Connecting Electronics Industries is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly.