Printed Circuit Boards and Electromechanical Assemblies | CAGE Code: 7FAM6
NAICS Codes: 334418, 334419, 332721, 334210
When Reiliability is YOUR Business


Printed Circuit Boards (PCBA’s) and Other Electromechanical Assemblies

MIL SPEC is the favored supplier for many technology companies for both production and prototype quantity work. Our clients have the choice of supplying the materials for prototypes, or asking MIL SPEC to acquire the materials.

Our size and company structure allow us to be flexible and highly responsive.

We understand an engineer cannot wait weeks to receive and test a new prototype design. As such if you’re in Houston, at no charge, we will pick up your engineering parts kit, any day or time of the week, and hand deliver the finished product back to you – any day or time of the week that will meet your needs.

Regardless of your location, if you need a prototype, delivered or shipped on weekend for a hot test project, let us know.We will make it happen.

  • Turnkey Electronic and Electromechanical Assemblies
  • Sensor assemblies
  • Rework/Repair

99% quality just doesn't cut it.

Volume Production

Prototype Quantities


Lead Free (RoHs) or Leaded

Surface Mount Technology Line

Low Volume or Prototype Manual Assembly

Electromechanical Assemblies

MIL SPEC offers high technology manufacturing services using Leaded or Lead Free (RoHs) compliant solder for both Prototyping or Low-Medium volume production runs.

We stand ready to manufacture Surface Mount Technology, Plated Through-Hole boards, or a mixture thereof using our Yamaha Surface Mount Technology Line, including the use of our Automated Optical Inspection (AOI), and Automated Defluxing Systems.

Our SMT Pick & Place machine is capable of placing a wide variety of QFP’s, SIOC’s, SMT Resistors & Capacitors down to 0201’s, as well as many other SMT components.

Quick-turn prototyping can be done using our highly skilled manual Assemblers.

How can we help you?


High Temperatures – Not a Place for Amateurs . . .

The use of High-lead, High Melting Point solder ( HMP and Gold) has significant challenges that require a specialized skill-set, and an equally important sense of discipline to properly utilize in high-temperature circuit board applications.

The very metallurgy of HMP solder, typically 85-93% Lead, creates a condition whereupon the solder resists flowing uniformly and completely, especially when applied to Plated-Through-Hole (PTH) connections which create a greater heat sink effect than SMT components.

On top of these difficulties let’s also add the most common mistake that other CM’s make on PTH components – feeding HMP solder from both sides of the board which creates a cavity of unburned flux and air in the center of the via. At high temperatures this via’s connection will absolutely fail. HMP solder must only be fed in from the Secondary Side.

The skill becomes imperative in knowing the correct tip temperature, contact duration, and rate of solder-wire feed to create a one-touch, complete, solder joint without reheating the solder joint a second time which creates a brittle, unreliable solder connection. This brittle connection will have a low mechanical adhesion strength and will most likely fail when the PCB is exposed to the shake and vibration of the downhole environment.

Think about this – a $3 dollar part in a $5 million dollar downhole tool, on a $250,000 a-day rig can fail due to a single, unreliable, solder joint.

Despite the requirement for these critical soldering techniques and disciplines, our third-party inspection service routinely inspects assemblies from other CM’s that show the telltale evidence of reheated solder joints.

At MIL SPEC we wrote the book on High Temperature soldering.

HMP is its own world. It requires very specific knowledge, techniques, tools, - and patience.

Example of a High Melting Point (HMP) Printed Circuit Board (PCB)
Example of excellent HMP solder joints.


Early Project Collaboration Can Reduce Cost and Increase Reliability.

Design Review

We seek to create genuine partnerships with our clients. One of the ways we do this is to collaborate in the area of Design For Manufacturing (DFM).

At no charge, we will review a client’s PCB layout before it is built to make layout suggestions that help to reduce manufacturing times (and therefore cost), and increase the reliability of the finished product.

Our clients and MIL SPEC both benefit from this practice.

MIL SPEC is here to support you in delivering reliability to your customers… every day.


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