OFC

2017 Optical Networking and Communication Conference & Exhibition

booth 1331. Location this year is LA Convention Center. Show dates March 21-23, 2017 Web site: ofcconference.org

 

Our business philosophy is simple and straightforward: “Work closely with our customers, produce high-quality technology, and keep costs down - every time.”

Malcolm D. Hill

President


Certified since March 2010

ISO Cert

 

 

Solder Masks

Various methods are available to provide the appropriate solder barrier, enhancing the ease of assembly of the design.  Consult the factory for the optimum method for your design.

1. TiW - DITF can provide a patterned TiW layer on the conductor surface to inhibit solder flow. This method is optimum for fast, lower temperature solders to restrict run out during reflow.

2. Polyimide - DITF provides patterned polyimide as a robust solder flow restrictor. With a thickness of 7um, polyimide can withstand higher temperature solders and provides a good, robust barrier to solder flow.

3. Nickel Oxide - Using DITF's in house plating capability, a Nickel Oxide (NiOx) barrier is created by etching the top surface of gold exposing an underlying layer of Nickel and intentionally oxidizing the Nickel. The result is an extremely rubust solder flow restrictor. Note that this method requires an additional conductor layer below the Nickel layer.

 

solder barriors

 

Solder Barriers and Control
Parameter
Material
TiW
Polyimide
NiOx
Comments
Thickness
1000 Â
160 - 320µ"
*20 - 300µ"
* Plated Nickel thickness
Max. temperature
350°C/60 sec
425°C/60 sec
*N/A
* limited only by metallization scheme
Min. gap width
.002"
.004"
.001"
 
Min. conductor overlap
.002"
.004"
*N/A
 
Min. feature width
.002"
.004"
*
* Width is equal to conductor width
Distance to circuit edge
.003"
.003"
*N/A
* See metal feature to edge criteria
Additive or Subtractive Process
Additive
Additive
Subtractive
 
Application side
A side, B side or both
Overall capability
Good
Better
Best
Based on user feedback

West Coast Sales

Glen Steward

(510) 468-7341

gsteward@ditf.com

East Coast Sales

Tom Lavallee

(603) 845-3450

tpl@ditf.com

DITF - Interconnect Technology

(775) 782-1041

sales@ditf.com

2245 Meridian Blvd.
Minden , NV 89423