Get a Quick Online Quote: Register or Login

Quotes & Orders
Start a New PCB Quote
Place a New Order
Order From Existing Quote
View Quotes & Orders
Update Profile
PCB Manufacturing Checklist
File Upload
File Upload
PCB Production Capabilities
Flex PCBs
PCB Component Overages &
Sourcing Cheat Sheet
PCB Assembly
Rigid Flex PCBs
PCB Manufacturing Checklist
PCB Testing & Inspection
Metal Core PCBs
PCB Material Reference Guide
PCB Tolerances
Prototype PCBs
PCB Surface Finishes
Quick Turn Around PCBs
PCB Terms Glossary
Burn-in Boards
MilSpec PCBs
Lead Free PCBs & Regulations
PCB Layout
PCB Assembly
Fine-Pitch PCB Assembly
PCB Component Overages & Sourcing Cheat Sheet
PCB Reflow Soldering
Medical / Instrumentation
Wearable Devices
PCB School
Via Tenting Principles in PCB Layouts
PCB Assembly Drawings: Polarities, Pin1 & Anode/Cathode Markings
PCB Dimensional & Thermal Stability
How Do You Manage Copper Pads, Copper Traces, & Planes in High-Load Applications?
Serpentine Routing–Function Over Form in PCB Router
The Past, Present, & Future of Microelectronics & PCB Production
PCB Trace Widths
Pogo-Pin Based Interface for Saving Space
Electronic IC Design Considerations
High Temperature PCBs
How to Clean PCBs
High Precision PCB Drilling
The Ultimate PCB Design Software Comparison Guide
Impedance Control and Its Importance in Today’s Designs
PCB Design for Bluetooth Circuit Boards
Contact Us
About Us
San Mateo (Headquarters)
San Diego
Career Opportunities
Ethics Statement
Terms & Privacy
Via Tenting Principles in PCB Layouts
PCB Assembly Drawings: Polarities, Pin1 & Anode/Cathode Markings
Sustainment Interview with CEO Alex Danovich
Industry Focus: PCB Manufacturing / Assembly for Wearable Devices
PCB Component / IC Shortages - Status Report 2022
Industry Focus: PCB Manufacturing / Assembly for Computers & High Performance Computing Applications
Industry Focus: Medical PCB Manufacturing & Assembly for Devices, Instrumentation, & Equipment
San Francisco Circuits Announces NIST 800-171 Compliance
Important COVID-19 Announcement
Happy Holidays from SFC - 2017
World's Best PCB Supplier
San Diego Office Opening
Happy Holidays from SFC - 2015
A Look Back at 2014
Happy Holidays from San Francisco Circuits - 2013
PCB Horror Stories you can avoid with San Francisco Circuits
PCB Design Rules
How to Improve Assembly Consistency...Automated Selective Solder!
Happy Holidays - A Year of Accomplishments for SFC
SFC January 2011 Newsletter - Offshore with Value
Borderless Boards
SFC May 2010 Newsletter
SFC April 2010 Newsletter
Forgot Password
Get new account

San Francisco Circuits, Inc.

1660 S Amphlett Blvd #200
San Mateo,CA 94402
Toll-Free: (800)732-5143

 NIST LogoITAR Compliance Seal  IPC International, Inc. Membership Seal SAM

San Francisco Circuits - San Diego

3914 Murphy Canyon Rd., Suite A244
San Diego, CA 92123
Local: (858)576-7202

Follow us

Twitter Logo Facebook Logo LinkedIn Logo

©Copyright 2005 - 2024 - San Francisco Circuits, Inc. - All rights reserved

Latest News


Via tenting is the application of soldermask to encase or seal the via’s opening. A via is essentially a hole drilled into the PCB that facilitates connections between multiple PCB layers. An untented via, on the other hand, remains uncovered by a soldermask layer. The decision to expose or cover these vias carries both advantages and disadvantages contingent upon your specific design and manufacturing requirements.

Read more


The Essential Guide to PCB Assembly Drawings: Understanding Polarities, Pin1 Marking & Anode/Cathode Markings. Learn more about understanding the XY File, component locations, & polarized component orientations.

Read more

User Login