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Development of Ultra-Multilayer Printed Circuit Board

This article introduces the technical development that went in to realizing an 80-layer ultra-multilayer printed circuit board, which meets the market demand for a "semiconductor test board supporting memory increases". The achievement of the ultra-multilayer board was accomplished by approaching the development from the perspective of 1. manufacturing, 2. board material and 3. design.

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Author:	Yasuyuki Shinbo
Organisation:	OKI Printed Circuits Co., Ltd.
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Featured New Products

U-200C

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Featured auction

Xchange Auction

Online Auctions | X-Line Asset Management

Tue, Feb. 1 | Location of Assets: Multiple, Global

Surplus Assets From Multiple Contract Manufacturers...»»

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For Sale Online

Pad Repair Kit

The BEST Pad Repair kit includes the tools and materials needed to reliably replace lifted or damaged surface mount and BGA pads on PCB's.

This kit includes 3 different tin plated copper base material circuit frame patterns, which offer nearly 3 times as many useable replacement land patterns as other circuit frames. Unlike dry film circuit frames, BEST circuit frames have no shelf life and can be used on both lead-free and tin-lead finish circuit boards.

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Forum

Blow hole on pad after reflow oven | Posted by Armando_Gomez

I am finding some blow holes in the solder join in a resistors pad, can this be because of high humidity in the board? Does baking the boards fix the problem?... »»

Depanel requirements | Posted by tombstonesmt

We are currently running a new product with some very tight tolerances while depaneling. We are using a table top 3 axis robot w/ a drill. My question is what is the min/max distance between a component and the edge of the board?... »»

Mirtec programming discussion | Posted by methos1979

Has anyone had any luck programming using the side cameras to inspect for defects on the sides of chip components? We recently had an escape of a damaged chip capacitor that was impossible to see from the top camera... »»

Visit the Forum... Have a Question? Ask for Free...

Forum

IPCA-610 CIS Training

Seminar/Course | Tue, Jan. 25 | Sponsored by: BEST Inc

This is a 3-day, lecture only course that teaches students the accept/reject criteria in the IPC-A-610... »»

Interactive PCB Inspection Lab

Seminar/Course | Thu, Feb. 10 | Sponsored by: EPTAC

This is a 1-day course utilizing, lectures, visual acuity exercises, and physical assemblies to provide the students with an experience in visually inspecting printed circuit assemblies... »»

Cleaning Options & Cost in PCB Assembly

Webinar | Thu, Jan. 27 | Sponsored by: The SMART Group

The majority of the industry have been running no clean processes for many years and have often neglected important issues like design for cleaning... »»

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Career Center

Jobs:

SMT Maintenance Technician

Variosystems, Inc.

Southlake, TX, USA

Troubleshoot & Maintain: Siemens (Siplace) placement machines, JOT, MPM... »»

Quality Engineer

NBS Inc.

Santa Clara, CA, USA

Identify weaknesses in processes, procedures, work instructions, determine opportunities for improvement... »»

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The prospective candidate should be able to handle sales and service functions... »»

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Debug Technician

Desired Field: Production, Engineering

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I work as a Debug Technician for 10 years. Skilled in Debug PCB's down to component level... »»

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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: South East Asia Technical Conference on Electronics Assembly Technologies - May 19

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: Soldering and Assembly Defects - Causes and Cures Webinar - Jan. 27

SMTnet Express
January 20, 2011

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