Flexible Thinking: The Calf Path—Redux

Regular readers might recognize that I have been writing for I-Connect007 since its inception and prior to that wrote for CircuiTree Magazine, which is its direct lineage ancestor founded in the 1980s. The staff has always been tolerant of my sometimes-off-the-wall digressions from the strictly technical commentaries to provide a different perspective, to hopefully make the technical a bit more understandable and appreciated.

I am taking liberty here to do so once again and repeat the presentation of a delightful poem shared with readers many years ago. The poem was written by Sam Walter Foss, a late 19th to early 20th century New Hampshire librarian and poet with great ability to bestow life lessons with humor, humanity, and humility. One such poem is “The Calf Path.”

When I first read the poem many decades ago, it immediately struck me with its simple yet profound wisdom, which I trust the reader will appreciate as well. Since that fortunate discovery, the poem has often informed my conscious thinking (and unconscious thoughts as well, I am sure) especially when it comes to inventions and inventing. We are all creatures of habit and convention. Habits can be good things, making life more predictable and easier to navigate. However, our habits can also blind us, constrain our thinking, cause us to miss opportunities, and even lead us astray. It is important to look up and look around from time to time to make sure we are not missing out because of our habits, which should be tested every so often.  

Without further comment, I invite the reader to read, enjoy, and hopefully remember “The Calf Path” and its timeless message.         

The Calf Path

A Poem by Sam Walter Foss

One day through the primeval wood
A calf walked home as good calves should;
But made a trail all bent askew,
A crooked trail as all calves do.

Since then three hundred years have fled,
And I infer the calf is dead.
But still he left behind his trail,
And thereby hangs my moral tale.

The trail was taken up next day,
By a lone dog that passed that way;
And then a wise bell-weather sheep
Pursued the trail o'er vale and steep,
And drew the flock behind him, too,
As good bell-weathers always do.

And from that day, o'er hill and glade,
Through those old woods a path was made.

And many men wound in and out,
And dodged, and turned, and bent about,

And uttered words of righteous wrath,
Because 'twas such a crooked path;
But still they followed—do not laugh—
The first migrations of that calf,
And through this winding wood-way stalked
Because he wobbled when he walked.

This forest path became a lane,
that bent and turned and turned again;
This crooked lane became a road,
Where many a poor horse with his load
Toiled on beneath the burning sun,
And traveled some three miles in one.

And thus a century and a half
They trod the footsteps of that calf.
The years passed on in swiftness fleet,
The road became a village street;

And this, before men were aware,
A city's crowded thoroughfare.

And soon the central street was this
Of a renowned metropolis;
And men two centuries and a half,
Trod in the footsteps of that calf.

Each day a hundred thousand rout
Followed the zigzag calf about
And o'er his crooked journey went
The traffic of a continent.

A hundred thousand men were led,
By one calf near three centuries dead.

They followed still his crooked way,
And lost one hundred years a day;
For thus such reverence is lent,
To well established precedent.

A moral lesson this might teach
Were I ordained and called to preach;
For men are prone to go it blind
Along the calf-paths of the mind,
And work away from sun to sun,
To do what other men have done.

They follow in the beaten track,
And out and in, and forth and back,
And still their devious course pursue,
To keep the path that others do.

They keep the path a sacred groove,
Along which all their lives they move.
But how the wise old wood gods laugh,
Who saw the first primeval calf.

Ah, many things this tale might teach—
But I am not ordained to preach.

This column originally appeared in the July 2021 issue of Design007 Magazine.

Back

2021

Flexible Thinking: The Calf Path—Redux

07-19-2021

When I first read the poem many decades ago, it immediately struck me with its simple yet profound wisdom. Since that fortunate discovery, the poem has informed often my conscious thinking. I'm sure it will for you as well.

View Story

Flexible Thinking: Star Trek Memories

06-15-2021

Columnist Joe Fjelstad not only watched Star Trek with fascination, he grew to become his own inventor, thanks to his father—an aerospace engineer. "The passion for flight, especially rocketry, entered my veins early," he writes.

View Story

Flexible Thinking: Process Flow for Occam QFN Test Vehicle

05-19-2021

Joe Fjelstad teaches the Occam process through a series of steps and images. These solutions can significantly reduce the number of process steps required to manufacture an electronic module or assembly (perhaps by as much as one-third) and in the process making electronic assemblies more reliable and less costly by fundamentally focusing on the elimination of solder and the soldering process.

View Story

Flexible Thinking: IC Package Footprints—Why So Many and How Many Is Enough?

02-12-2021

Joe Fjelstad takes a historical look at the formation of integrated circuits and what that means for today's PCB designs.

View Story

Flexible Thinking: Flexible Circuits Vs. Flexible Hybrid Electronics—Where’s the Line?

01-21-2021

The line separating polymer thick film flexible circuit assemblies from flexible hybrid electronics, exists but it is not hard and bright. The introduction of new flexible circuit manufacturing technologies and materials including stretchable substrates has created a surge of interest in their use.

View Story
Back

2020

Flexible Thinking: Thermal Management—Electronic Technology’s Rodney Dangerfield

09-17-2020

Thermal engineering has, unfortunately, often been treated with less respect than it deserved. Dealing with the heat generated by electronics was often not given full consideration until after the design was completed and prototyped, and the problem manifests as a failure. Joe Fjelstad emphasizes why keeping devices cool is a vital objective.

View Story

Flexible Thinking: Designers at the Edge

07-15-2020

Designers often play it safe in the center, but step out on the edge and you’ll likely see things much differently. Joe Fjelstad shares his thoughts.

View Story

Flexible Thinking: Lead-Free Solder—Panacea or Pandemic?

06-26-2020

Solder has been used as the primary means of interconnecting electronic components for more than seven decades. For the benefit of all those who are new to the electronics interconnection industry, Joe Fjelstad shares how we got to this point.

View Story

Flexible Thinking: When Expectations and Results Don’t Line Up

05-15-2020

Around 20 years ago, I had the good fortune of receiving a recommendation to read the book The Four Agreements by Don Miguel Ruiz and subsequently picking it up. It is a short and simple book that the author says is based on ancient Toltec wisdom.

View Story

Flexible Thinking: DFM or Design With Manufacturing?

04-15-2020

The great Irish author, playwright, and humorist Oscar Wilde once defined a cynic as an individual who knows the price of everything and the value of almost nothing. Unfortunately, over the decades, that same analysis could often be applied to procurement agents in electronic product companies around the globe. The reward for a purchasing agent is too often derived not from getting the best solution for their company but the best price

View Story

Flexible Thinking: Profitability—A Vital Design Requirement

03-27-2020

The decisions designers make will impact virtually every manufacturing step in the fabrication and assembly of electronics products. Joe Fjelstad explains how applying “design for” guidelines can help create products that can be made both reliably and profitably when applied.

View Story

Flexible Thinking: Power and Thermal Management—Dealing With the Heat

02-15-2020

Without power, electronics are useless. With power, miracles happen. Managing that power is critical in both design and operation in terms of heat generation and energy conservation, especially for battery-powered devices. Moreover, often in electronic products, designers find themselves providing power to an electronic module or system at multiple different voltages and currents.

View Story

Flexible Thinking: Looking Back and Looking Forward

01-27-2020

The month of January is upon us once again. The month is named after the Roman god Janus. According to Wikipedia, Janus is the god of beginnings, gates, transitions, time, duality, doorways, passages, and endings. He is usually depicted as having two faces: one on the front of his head, and one on the back since he looks to the past and future.

View Story
Back

2019

Flexible Thinking: The Value of Experience

12-15-2019

For many people, December is a month in which to reflect on the experiences and lessons encountered and learned over the past year. As the years pass, I am increasingly thankful for the many experiences that have brought me to this point. In sitting down to collect and share my thoughts, what first came to mind was a timeless story about the value of experience. It goes something like this.

View Story

Flexible Thinking: Additive Manufacturing of PCBs

11-23-2019

We are seeing increasing interest in technologies that will allow one to make electronic substrates in near real-time using additive processing techniques and 3D printers. It is a true game-changer in product development. The surge in interest in additive manufacturing technologies shown in recent times—as indicated by the significant increase in published articles and press releases—suggests that the electronic interconnection manufacturing industry could be on the verge of a manufacturing renaissance.

View Story

Flexible Thinking: Standards—An Industrial-strength Glue

10-21-2019

Standards are frequently viewed as cumbersome nuisances and impediments to progress by those pressing for rapid change. The process of writing, getting approval, and promulgating standards can be arduous and frustrating. It has a lot of similarities to the creation and passage of laws in various government bodies in that there are many opinions and interested parties who engage in the process to make sure that it results in a product that does not damage or favor one solution or party over another.

View Story

Flexible Thinking: Making Flexible Circuits Stretchable

09-05-2019

It is my opinion that the initial driving impetus for the development of stretchable circuits was a bit different than normal, meaning that military and aerospace have traditionally driven the development of arcane electronic interconnection technologies as they did with the development of both flexible and rigid-flex circuits. In contrast, it was a consumer-driven market that appears to have been the gate opener in the form of wearable electronics.

View Story

Flexible Thinking: How to Get From Here to There

04-26-2019

To begin any process, you must first know where you are going. This is true for any project or life pursuit, I believe, and I often try to bring it to mind as I start any new project. With respect to developing products that might benefit from flexible circuit technology, this is no less true. Find out why.

View Story

Flexible Thinking: Ways to Conserve Flex Circuit Material in the Design Process

02-25-2019

In summary, the decisions made by the flex circuit designer when laying out a flex circuit will have an impact that lasts the entire process. By considering how the circuit might fit onto a panel before submitting the design to a manufacturer, it may be possible to save a considerable amount of material and money.

View Story

Flexible Thinking: A Few Simple Lessons in Designing Reliable 3D Flex

02-11-2019

There is an old and familiar adage that goes something like this: “If the only tool in your tool chest is a hammer, you tend to see every problem as a nail.” We all have a tendency to stick close to the familiar and use the tools we know to create solutions to problems confronting us; we’re only human.

View Story

Flexible Thinking: A Few Simple Lessons in Designing Reliable 3D Flex

01-15-2019

We all have a tendency to stick close to the familiar and use the tools we know to create solutions to problems confronting us; we're only human. Unfortunately, using only familiar tools limits our ability to come up with optimal or even superior solutions. This article will help you avoid some of the traps conventional wisdom doesn't always give guidance on.

View Story
Back

2018

Flexible Thinking: Achieving Continuous Flexible Circuit Innovation

12-07-2018

Since their introduction, flexible circuits have continued a steady climb from relative obscurity to center stage in the world of electronic interconnections. Today, they are among the most popular choice for solving challenging electronic interconnection problems. Those who use this technology on a regular basis are familiar with the many reasons for the popularity of flex.

View Story

Flexible Thinking Redux

07-02-2018

Flexible circuits are known by a few different names depending on one’s global location and language: flexible printed circuits, FPCs, flex circuits, flexi circuits, flexibles, bendables and a few others that are application-specific such as flexible heater circuits and controlled impedance cable constructions. While flex circuits are an original and foundational interconnection technology for electrical and electronic products (one of the first patents for electrical interconnections, issued at the turn of the last century, was arguably a flexible circuit), over the years there have been several forays into technological extensions of the basic idea.

View Story
Back

2017

Flexible Thinking: The Benefits of Employing a Standard Grid Pitch in Design

03-31-2017

The industry at large needed to jump on the learning curve and overcome its fear of the unknown. One of the most vexing concerns at the time (an arguably still today) is that terminations beneath the area array package were unseeable. Given the fact that then, as today, solder joints were a major cause of failure, there was much consternation over the quality of the joints.

View Story
Back

2016

Flexible Thinking: Process Engineering—PCB Manufacturing’s ‘Delta Force’

05-11-2016

Process engineers serve a vital function on the front line of printed circuit manufacturing. They are often, if you will, the “Delta Force” that subdues and controls that which is one of the mortal enemies of manufacturing…process variation.

View Story
Back

2015

3D Printing in Electronics - A Perspective

01-14-2015

Knowing the value of a product or technology is key to making the right decision. Appreciating the value of an element of business is evermore important as the rate of change surrounding an industry accelerates. This brings us to one of the current buzz subjects in our industry: 3D printing. Understanding what it is and what its value is to a company and that company's ability to improve its place in the industry is vital.

View Story
Back

2013

The E.I. Files: The Electronics Industry's Black Swans

07-31-2013

First proposed in 2007, there is a potential electronics industry "black swan" technology quietly being developed and refined. It is one that could greatly and positively impact, at once, the cost, reliability, and environmental friendliness of electronic manufacturing by simply eliminating the soldering process.

View Story

Flex Circuits and Photonics: A Pairing for the Future, and the Here and Now

04-17-2013

Photons are making continuous headway into the world of electronics. One thing that the basic data carriers (electrons, microwaves and photons) have in common is that flexible circuits are being increasingly looked to for help in managing their data transmission function.

View Story
Back

2012

Stretching the Limits of Flex

11-29-2012

Those steeped in flexible circuit design and manufacture for any length of time fully appreciate the long list of benefits that only flexible circuits can offer. Some of the most fundamental benefits of flex circuit technology have been exploited since the earliest days of the technology. Joe Fjelstad explains.

View Story

Flexible Thinking: Circuit Flexibility (and How to Achieve it)

10-04-2012

The most common interpretation of the word flexible, as applied to the flex circuits that the industry currently makes, is something capable of being bent repeatedly without breaking. Joe Fjelstad discusses a few other definitions of flexible that are worthy of consideration when using the term, for their ability to unlock new thinking patterns relative to what is flexible.

View Story

Technology Roadmaps: Thoughts and Observations

09-26-2012

If one is without a sense of the direction their technology is headed, odds are that they will sooner find themselves on the road to ruin than the road to success. A technology roadmap is a critical tool in helping a company make informed decisions. By Joe Fjelstad.

View Story
Back

2011

Something Old, Something New: Stretchable Circuits and Elastronics

10-13-2011

The stretching of circuits to alternately increase and decrease the length of a circuit has proven useful for electronic products and assemblies for years. Stretchable circuit technology and elastronics are poised to take on challenges that cannot be easily met by flexible circuit technology alone. Keep them in mind next time you find yourself in need of a little more "spring" in your design. By Joe Fjelstad.

View Story

Stretchable Circuits: The Emergence of "Elastronics"

07-14-2011

The stretchable circuit is an interesting and promising new branch on the flexible circuit tree. The stretching of circuits to alternately increase and decrease the length of a circuit has proven useful for many years. The European Union has funded research in this area through such initiatives as the STELLA project.

View Story
Back

2010

Flexible Thinking: An Alternative Approach to Rigid-Flex Assembly

11-18-2010

The fundamental approach to manufacturing rigid-flex has remained constant for the 40-plus years of rigid-flex history. But is there a better way? What if one could produce a circuit that was rigid throughout the manufacturing process and only become flexible in the final step? In other words, what if one could make a rigid circuit assembly, flex?

View Story

Reasons Why The Flex Market Continues to Shine

10-07-2010

According to IPC market statistics, flexible circuits continue to be the brightest sector of the overall printed circuit market. The reasons for this are many but, at the end of the day, it generally boils down to the fact that flexible circuits are an excellent way to solve interconnection challenges in a cost-effective way.

View Story

Flexible Thinking: Flexible Structures for Data Transmission

08-12-2010

Flexible circuit cables offer some significant advantages for facilitating the movement of data between elements of a system that must also be moved or flexed. However, there is a balancing act involved and there is more than one master to be served to create a system that is robust, reliable and easily manufacturable.

View Story

Flexible Thinking: Supporting Components on Flex Circuit Assemblies

07-21-2010

With proper planning, stiffeners can be designed to aid assembly through the designed manufacture of a flex circuit that can be handled as if it were a rigid circuit board. Such constructions can be accomplished by using any one of several methods.

View Story

A Simple Approach to Flex Manufacture, Assembly

04-29-2010

Flexibility, the single attribute that makes flex so attractive, also makes flex circuits more difficult to build. What if we could produce a circuit that was rigid throughout the entire manufacturing process and only become flexible in the final step?

View Story
Copyright © 2021 I-Connect007. All rights reserved.