PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic619.html
), just a clean hole through the FR4 material. But why? The plated hole drill bit hits copper on every hole. JZsori wrote: My understanding is that it is preferable to have a donut pad for the screw head so that the screw does not crush the epoxy glass material as much as it has a copper pad in between
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic619&OB=ASC.html
), just a clean hole through the FR4 material. But why? The plated hole drill bit hits copper on every hole. JZsori wrote: My understanding is that it is preferable to have a donut pad for the screw head so that the screw does not crush the epoxy glass material as much as it has a copper pad in between
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7351-mounting-hole-naming-convention-info_topic619_post3055.html
), just a clean hole through the FR4 material. But why? The plated hole drill bit hits copper on every hole. JZsori wrote: My understanding is that it is preferable to have a donut pad for the screw head so that the screw does not crush the epoxy glass material as much as it has a copper pad in between
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/surface-treatment-and-uv-curing
. The active species within the plasma are cable of physical work via ion assisted sputtering and chemical work through radical or byproduct chemical reaction
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/industrial-coating-systems/products/automotive-assembly-priming-systems?con=t&page=1
. Products Content Your results for: Automotive Primer Application Systems Flow-Through-Felt Primer System Industrial Coating Systems For consistent, reliable application of clear and black primers in automotive glass bonding
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/industrial-coating-systems/products/automotive-assembly-priming-systems?con=t
. Products Content Your results for: Automotive Primer Application Systems Flow-Through-Felt Primer System Industrial Coating Systems For consistent, reliable application of clear and black primers in automotive glass bonding
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/industrial-coating-systems/applications/bonding?con=t
Appliance Manufacturing Industrial Coating Systems Metering, Mixing & Dispense Equipment Solutions for Appliance Manufacturing Processes Flow-Through-Felt Primer System Industrial Coating Systems For consistent, reliable application of clear and black primers in automotive glass bonding applications
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_fabrication_forum55.xml
: IPC-2221 & 2222 and Through-hole Pad Stacks Author: npasseySubject: IPC-2221 & 2222 and Through-hole Pad StacksPosted: 17 Aug 2020 at 6:45amHi Tom,Thanks for this
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/thermal-relief-for-smd-components_topic1009.html
- The via-in-pad is when a SMT pad has a via in it and the GND / VCC connection is on the inner layer just like a normal through-hole component
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/thermal-relief-for-smd-components_topic1009.html
- The via-in-pad is when a SMT pad has a via in it and the GND / VCC connection is on the inner layer just like a normal through-hole component
