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Three-Dimensional MMIC and Its Evolution to WLCSP Technology

Technical Library

Three-Dimensional MMIC and Its Evolution to WLCSP Technology

by: Tsuneo TOKUMITSU; Sumitomo Electric Industries, Ltd.

The history of multilayered, three-dimensional monolithic microwave integrated circuit (3-D MMIC) technology is described here. Although significant researches were carried out in the second half of 1990's, still there were many twists and turns before and after the era. Since 2008, an aggressive and realistic development of 3-D MMIC Wafer Level Chip Size package (WLCSP); for extremely low cost and surface-mount compatible MMIC products, has been performed to provide a one-stop solution for radio-link equipment developers. This paper will be an example that indicates importance of continuous motivations.... read article »

SMT / PCB Products

Custom Nozzles
Custom Nozzles

Available for all types of SMT pick-and-place equipment and tooling...

Offered by: Count On Tools

Scorpion - Fully Automatic Dispenser
Scorpion - Fully Automatic Dispensing System

Dispense up to 100'000 dots per hour with an accuracy of ±25 µm (3&# 963;)...

Offered by: Essemtec

ProntoAOI - AOI Software
ProntoAOI - AOI Software

Used to quickly program AOI machines and X-RAY equipment... Download Trial

Offered by: Unisoft

SMT / PCB Equipment Auctions

X-Line Electronic Equipment Auctions

Complete Closure of Late Model SMT and Test Facility

Mon, January 23-24 | Online Auction

auction by: X-Line Asset Management

For Sale Online

PCB Repair Kit

Pad Repair Kit

offered by: BEST Inc


Electronic Equipment Mart

Juki 570L
Pick and Place
Juki 570L Pick and Place

Factory Automation

all marketplace listings

Screen Printer
DEK ELA Screen Printer

Alpha 1 Technologies, LLC

all marketplace listings

PCB Depaneling
All Models
PCB Depaneling


all marketplace listings

Aqueous Tech. Sonic One
Stencil Cleaner
Aqueous Technologies Sonic One Stencil Cleaner


all marketplace listings

Electronics Forum

Choices for SN100C for reflow - I'm testing SN100C, and with our 5 zone oven I seem to be able to fix one issue...

Rigid-Flex board via problems - I am wondering first what kind of profile do you use and what are you peak temps...

Is a bare PCB ESD-sensitive ? - Can a bare PCB be ESD-sensitive? If yes, in what conditions? ...

Events Calendar


Conference, Trade Show/Exhibition | February 28 - March 1 | San Diego, CA, USA | Sponsored by: IPC

The premier electronics industry conference and exhibition...

Why Clean PCB's? - Free Online Webinar

Online Webinar | January 26 | Sponsored by: ZESTRON Corporation

Insight to why it is important to fully clean electronic assemblies and how electrochemical migration and leakage...

Automation Technology Expo West - ATX West 2012

Conference, Trade Show/Exhibition | Anaheim, CA, USA | February 14-16 | Sponsored by: UBM Canon

The world's leading automation suppliers showcase their products and technologies for lean manufacturing...

Career Center


Auditing (Process and Product)

Little Rock, AR, USA | Verify Inc

Senior Process Engineer

Pullman, WA, USA | Schweitzer Engineering Laboratories

Surface Mount Technician

Zeeland, MI, USA | Gentex Corporation


Manufacturing Tech/Eng/Manager

Costa Mesa, CA, USA

SMT Technician

Imus Cavite, PH, Philippines

SMT Maint Tech/Process Engineering

Fredericksburg, VA, USA

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

Next Event: Exhibition, Conference: Dallas Expo & Tech Forum - February 7


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 Programs | Standards & Publications - Online Store

Next Event: Webinar: Everything You Always Wanted to Know About TH Soldering But Were Afraid to Ask: Understanding Selective Soldering Processing and Manufacturability - January 26

SMTnet Express
January 19, 2012

Subscribers: 24945

SMTnet Members:

Companies: 8782

Users: 32645

Capital Equipment Exchange - Used PCB Assembly Equipment

IPC Apex Expo 2012

used SMT Assembly Equipment

Kyzen - Precision Cleaning Products

Mirtec AOI and SPI Systems

Aegis Software

PPM - Pre-Owned Quad, MPM Equipment

Newsletter Editor - Anna Girouard, listings(at), 1-207-780-0887, 98 Elm Street, Portland, Maine 04101 USA, Tel.207-780-0887.

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Jade Series Selective Soldering Machines