Tradeshow Highlight

IEEE 2011 International Symposium on Electromagnetic Compatibility
Aug 16th thru 18th at the Long Beach Convention Center  

 

Please visit the Captor booth for EMI/RFI requirements


Southern California Line Card:
 

 

Lorill Electronic Sales Contact Info.   
Bill Quinton
27676 Golondrina Dr.
Mission Viejo, CA 92692
 
P:  (949) 770-2637

Justin Gamble
1695 Mesa Verde 150
Ventura, CA 93003
P: (805) 338-4800

Carla Stern
10235 Burned Oak Ln
Escondido, CA  92026
P: (760) 855-5055
E:
carlastern@sbcglobal.net 

Greetings!  

 

In this latest edition of Socal Interconnect News we introduce the 4-slide capabilities of Fotofab along with a cable to flex case study from Vulcan Electric. We are also pleased to announce our representation of Elcon Precision as they have an amazing range of internal capabilities including hermetic sealing; atmosphere and vacuum brazing of ceramic to metal and metal to metal, metallization of ceramics and photo chemical etching and etching of 3D surfaces!

 

-Lorill Electronics Sales Inc.  www.lorill.com
  Southern California Interconnect News
Fotofab

  

Stamping Capabilities: 4-Slide Equipment  

 

Fotofab, a leading supplier of precision thin-metal parts further expanded its capabilities in 2009 with new 4-slide presses. Fotofab is known for its Chemical Etching capabilities, making custom metal parts in as little as 1 day without high tooling costs. Fotofab has also been a preferred supplier of stamped parts for decades. These new presses add to the range of designs and quantities Fotofab can produce. While chemical etching is often an ideal production solution, there are also situations where a hard tool provides an economic advantage. By offering both options, Fotofab is able to evaluate each customer's unique requirements and offer the best solution in consideration of lead time, cost, and tolerances. In many cases, the ideal solution is a combination of the two. The Fotofab process offers the speed and flexibility for the beginning of a part's lifecycle while a stamping tool offers the low unit cost needed at very high volumes. Customers appreciate the option of having a single supplier from start to finish, knowing that all parts have passed through the same quality controls. Fotofab continues to offer a complete list of value added services including plating, soldering, tape & reel packaging, passivation, and many more.

 

4-Slide Parts 

 

 

Fotofab is ISO 9001:2000 and ITAR registered and representatives are ready to assist with any size project. A typical quote is turned around in less than 24 hours. Contact Fotofab at 773-463-6211 or send a print via email to sales@fotofab.com.

 

About Fotofab

Founded in 1967, Fotofab continues to refine the photochemical machining process, (also known as chemical etching or milling) to produce custom precision metal parts in an efficient and environmentally friendly manner. A veteran supplier to the aerospace, automotive, defense, electronics, telecommunications, and medical manufacturing industries, Fotofab is the leading supplier of precision metal parts including RF/EMI shields, electrical contacts, screens, connector housings, and application engineered components and assemblies..

 

Fotofab Website   

 

Download Design Guidelines 

Case Study: Cable Harness to Flex Circuit

Harness-Flex

Executive Summary  

This case study describes the conversion of discreet wire harness to a flex circuit harness for the purpose of providing the user with a lighter, smaller and more economical, and reliable interconnect solution.

 

Challenge

 

A Defense contractor was experiencing quality and delivery issues with a discreet wire harness used to interconnect several modules for a battlefield communications system. The quality issues were relative to wiring errors and bundle pinching during installation. The harness was bulky and difficult to install.  The lead time was typically 16 to 20 weeks for the entire wire harness. The user was looking for a solution which would provide ease of installation while eliminating wiring errors, all in a shorter lead-time.

 

Solution

 

Vulcan Flex Circuit Applications Engineers proposed a flex circuit harness approach, complete with etched signals and corresponding shield layers-both solid and cross hatched copper. The item was costed at a unit price roughly $250 less than the wire harness version and with an overall lead-time of only 8 weeks.  

 

Instruction/Clarification for designers

 

Wire harness are used in almost every piece of defense hardware to interconnect circuit boards within a system and connect systems to each other. They are used to carry digital signals, analog signals, power and ground. In some cases the signal integrity is very critical- very clean high speed signal. Wire harnesses are made from individual wires which are hand prepared (cut and stripped) and soldered to the connector as required. This requires a great deal of hand labor and is very susceptible to wiring errors if one or more of the wires are soldered to the wrong pin.  To read more of the case study and design information: 

 

Read the full Case Study from Vulcan  

 

 Visit the Vulcan Website 

Elcon Precision:

Metallized and Resistive Coated Ceramics, Vacuum and Atmosphere Brazed Assemblies, and Photochemically Machined Parts
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Metallization of Ceramics

 

 


Elcon offers precision metallized ceramic components for the military, medical, and aerospace industries. Through spray, needle, and brush coatings or screen printing our capabilities allow us to metallize on flat, cylindrical, and complex ceramic bodies. Moly-Manganese and Tungsten-Manganese are the typical base coat materials used for metallization. We specialize in metallizing ceramics with a coating thickness ranging from 0.0005" to 0.0015". We measure the thickness of metallized coatings using XRF technology.

Aluminum oxide, beryllium oxide, and sapphire are some common materials we metallize. After metallization, a thin or thick metal coating is applied to the metallized layer to improve its wettability, preparing the substance for subsequent brazing operations. These components are widely used in a variety of industries.

 

 

Hermetic Brazed Assembly Services


 

Elcon specializes in joining ceramic to metal and metal to metal assemblies by brazing. Our brazing processes offer several advantages, including high hermiticity and repeatability with minimal part-to-part variation. Typical base materials that we braze include copper, alloy steels, molybdenum, stainless steel, and Kovar. Common applications include aerospace components, microwave-transmitting tubes, and medical components.

 

 

We typically work with active metal braze, copper, gold, and silver-based alloys. Depending on your material type and part geometry, our experienced engineers will select the appropriate brazing method to join custom components.

 

Through atmosphere or vacuum brazing, we join metal to metal and ceramic to metal in a controlled environment. This process protects the assemblies from oxidation. Our active metal brazing process is suited for assembling metal substrates to ceramic parts without metallization and is normally very cost effective.  

As an additive value service we can join metal components by laser, TIG, or spot welding. We also offer gold, nickel, silver and copper plating services that comply with military standards (Mil Spec). 

 

 

 

Photochemical Machining

 

 

We have over four decades of experience in manufacturing photochemically etched components for the military and aerospace markets. Optical encoders, lead frame prototypes, and R/F shielding components are some of the common photochemically machined products that we manufacture. Elcon specializes in processing diverse base materials, including molybdenum, tungsten, copper, stainless steel, and titanium, with thicknesses ranging from 0.0005" to 0.100".

Technical designs for your projects are created by our CAD/CAM department. Using Optibeam printers, photographic artwork designed from custom specifications are plotted on to photoresists that preserve surface metal during photo etching. After the imaging phase, we use Chemcut etchers to remove undesired areas from metal surfaces. Our photochemical etching process offers several advantages, including low cost tooling, design flexibility, fast turnaround, and dimensional repeatability.

Flat as well as 3D curved surfaces can be precisely etched to tight tolerances of up to 0.00025". Through chemical milling, we accurately etch holes and slots on a wide range of materials. The minimum hole diameter and spacing between holes can be 1.5 times the material thickness. Our average lead time is 3 weeks ARM for planar and 8 weeks ARM for 3D Grids. Expediting services are also available.  

 

 

Elcon Website