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SMTnet Express, April 18, 2018, Subscribers: 31,006, Companies: 10,922, Users: 24,628

Technical Library

Semi-Additive Process for Low Loss Build-Up Material in High Frequency Signal Transmission Substrates

Fei Peng, Naomi Ando, Roger Bernards, Bill Decesare; MacDermid Inc.

Higher functionality, higher performance and higher reliability with smaller real estate are the mantras of any electronic device and the future guarantees more of the same. In order to achieve the requirements of these devices, designs must incorporate fine line and via pitch while maintain good circuitry adhesion at a smooth plating-resin interface to improve signal integrity. The Semi-Additive Process (SAP) is a production-proven method used on low dielectric loss tangent (Df) build-up materials that enables the manufacture of ultra-fine circuitry. (...)

This paper will discuss a new SAP process for low loss build-up materials with low desmear roughness (Ra= 40-100 nm) and excellent adhesion (610-680 gf/cm) at various processing conditions...

Forum search results for related keywords: ultra-fine, adhesion.

SMT / PCB Products




Hand Assembly

Virtual Industries


GPD Global

Material Handling/Storage




Solder Paste Stencils

BEST, Inc.









Board Handling - Storage

Seika Machinery





Creative Electron







Precision PCB Services

Solder Paste Stencils

BEST, Inc.

SMT / PCB Equipment Auctions

ETM-SMT Exchange Featuring Leading Contract Manufacturer and Leading Digital Sound Laboratory

May | X-Line Asset Management

Surplus SMT Equipment from a major MNC due to line upgrade

April 23 | ASTOCA

Electronic Equipment Mart

Siemens Siplace 80 S20 FS 02

Pick and Place Equipment/Feeders

Astoca (Asia) Ltd

Universal... Genesis GC-60D

Pick and Place Equipment/Feeders

Capital Equipment Exchange

ASC International SP3D

AOI / Automated Optical Inspection

X-Line Asset Management

PCB Conveyors


JMW Enterprises

DEK Horizon 03i FP iPlus

Screen Printing Equipment

IBE SMT Equipment

Fuji MFU-6E

Pick and Place Equipment/Feeders

AdoptSMT Europe GmbH

Events Calendar

IPC High Reliability Forum | May 15 - 17 | IPC

Electronics in Harsh Environments Conference | April 24 - 26 | SMTA

PCB Cleaning Webinar Series | ZESTRON Corporation

Training Courses

IPC Training & Certification Courses

Soldering & PCB Rework Courses

Career Center

Service Engineer


Huntingdon Valley, PA | Manncorp

Sales Representative


San Jose, CA | YINCAE Advanced Materials

Commission Sales


Everywhere | SMTnet

Industry Associations Events


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.

Membership Info | SMTA Certification | Bookstore | Upcoming Events


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.

Membership Info | Training & Certification | Online Store | Upcoming Events

Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard, 98 Elm Street, Portland, Maine 04101 USA, Tel.207-780-0887.


Used PCB Assembly Equipment - CE Exchange

Auction: Surplus SMT Equipment from a major MNC due to line upgrade - Rework Tools

Selective Conformal Coating System - GPD impleCoat

Vacuum Tweezers - pick up small components with ease

HELLER - Choose an Oven for Your Reflow Needs

KIC - Making Reflow Ovens Smarter

Discover the Next Generation of Electronics Inspection - Join the YXLON EVOlution

Experience the Blackfox Difference - Premier IPC Training & Certification Center

Software for PCB Manufacturing - Unisoft

Used SMT Equipment - IBE

Hioki 1240 Flying Probe Tester - ultra-high speed measuring, fine pitch inspection.

SMT, PTH, AOI & Test Equipment

NEW PDR Products for IR Thermal Test and Rework

Delta Solder Materials from Qualitek for Ultra-Fine Pitch printing.

Innovative aqueous and solvent based technologies for cleaning PCBs

QWIKTRAY - custom component handling matrix tray - Count on Tools

Rework Made Easy - Guided processes with computer aided alignment and 3900W of power - Ersa HR 550 Rework Station

MIRTEC MV 6 OMNI High-Speed / High-Performance 3D AOI MACHINE.

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