Article: An unrecognized source of PCB contamination in schools and other buildings.(Research: Commentary)

Article: Designing for high layer count: the design team plays a major ...
Printed Circuit Design & Manufacture;  April 1, 2007 ;     700+ words ...Today's PCB is not just a plain electrical ... demand high quality controlled PCB impedance and EMC. Above 25 ... reduction compared to two layer PCBs; decreased ground impedance ... effective layer stackup for a PCB design is a key stage during ...

Article: Nanotechnology and PCBs: could nano PCB ...
Printed Circuit Design & Manufacture;  March 1, 2006 ;     700+ words ... ... in turn, will pressure the PCB industry to make finer geometries available at the PCB level. Denser and Faster With ... close to that for prototype PCBs today. The technologies in ... much as the currently available PCB laminate material resin-coated ...

Article: Need offshore PCBs? Go local: domestic PCB makers ...
Circuits Assembly;  July 1, 2005 ;     700+ words ... ... been providing your company with PCBs for years--for an offshore ... overwhelming. Asking your domestic PCB vendor, who knows all your quirks ... handle that, too. The local PCB partner, who has been building ... 35% of the value of offshore PCB orders are handled through domestic ...

Article: Hydroxylated PCB metabolites and PCBs in serum from ...
Environmental Health Perspectives;  September 1, 2002 ;     700+ words ... ... concentration of the OH-PCBs may exceed 10% of the total PCB concentration in human ... the most persistent PCB congeners. Several of the OH-PCBs compete with thyroxine ... known whether the OH-PCBs occur along with the parent PCB congeners at similarly ...

Article: Device depanels PCBs.(PCB Assembly)
Assembly;  December 1, 2003 ;     322 words ...The SR1200 depanels printed circuit boards, even if they are closely spaced. With a router, its maximum speed is 4 ips. With a saw, its maximum speed is 8 ips. Each pallet is fixtured independently, so different products can be processed during the same production run. The routing window is 13.8 by

Article: Saw singulates PCBs.(PCB Assembly)
Assembly;  December 1, 2003 ;     321 words ...The S200 diamond-blade depaneling saw singulates circuit boards. The blade is 2.95 inches in diameter and 0.021 inch thick. A see-through cover with dust extraction ensures safe and clean singulation. The blade leaves a smooth finish and will not stress the board. [ILLUSTRATION OMITTED] FKN Systek

Article: PCB-containing wood floor finish is a likely source of ...
Environmental Health: A Global Access Science Source;  January 17, 2008 ;     700+ words ... ... detected 52 chemicals in air and 66 in dust. Three PCB congeners were among the target chemicals: PCB 52, PCB 105, and PCB 153. We detected PCBs in air (>1 ng/m 3 ) from 38 homes (32%) and dust (>0.2 [mu]g/g) from 22 ...