1). Size: 45*140mm/1 up 2). Layer count: 2 Layer, 20 μm PTH 3). Thickness: 1.6mm +/- 10% 4). Copper weight(Finished): 35 μm 5). SMOBC: LPI Green solder mask/ White legend 6). Holes: 0.4mm minimum, 4/4 mil track/space 7). Pads finish: HASL 8).
New Equipment | Assembly Services
China Double Sided Circuit Boards Fabricaiton and Assembly PCBA Turnkey Manufacturer 2 Layers circuit boards PCB FR4 1.6mm PCB fabrication and assembly 1oz PCB copper thickness Shenzhen PCB and PCBA manufacturer China turnkey contract electroni
Electronics Forum | Wed Jun 23 18:23:32 EDT 1999 | Tom B.
Even though you may find a pad-pad thru-hole spacing, part body size, orientation, and insertion head tooling clearences may be the deciding factor in spacing. 1. Part body diameter will dictate component centroid spacing. ---[][][][
Electronics Forum | Wed Jun 23 15:49:30 EDT 1999 | Kelly Morris
In the IPC-SM-782 (Surface Mount Design and Land Pattern Standard) it recommends a minimum of .040" between bottomside wavesoldered chip pads. Where might I find a similar IPC recommendation for minimum space between thru-hole pads? Does anyone kno
Industry News | 2018-10-18 08:14:11.0
How to Prevent the Tombstone and Open Defects during the SMT Reflow Process
Industry News | 2018-10-18 08:32:52.0
How to Prevent Solder Ball and Bridging Defects during the SMT Reflow Process
With the development of miniaturization of assembly components, the layout area and pattern design area of PCBs have also been continuously reduced, and PCB manufacturers are constantly updating the production process to conform to the development tr
SMTnet Express, December 27, 2019, Subscribers: 33,251, Companies: 10,949, Users: 25,451 A Life Prediction Model of Multilayered PTH Based on Fatigue Mechanism Credits: Beihang University PTH plays a critical role in PCB reliability. Thermal
SMTnet Express, August 13, 2015, Subscribers: 23,186, Members: Companies: 14,558 , Users: 38,745 Pad Cratering Susceptibility Testing with Acoustic Emission Wong Boon San, Julie Silk; Agilent Technologies | Richard Nordstrom, Ph.D.; Acoustic
ORION Industries | http://orionindustries.com/pdfs/silpad400.pdf
. Special Thicknesses, Rolls and Sheets Sil-Pad 400 can be supplied on special order in a variety of thicknesses from .007 to .045 inches to fulfill special requirements of insulation path minimums or other spacing needs
Blackfox Training Institute, LLC | https://www.blackfox.com/guide-to-a-successful-lead-free-soldering/
. When you transition to lead-free soldering, you will have to make some changes in the already established PCB-design rules. To guarantee manufacturability and dependability, industry guidelines regulate component lead-pad and land size, track width and spacing, via and through-hole dimensions, and other variables
