Circuit Board Fabricators Case Essay

1911 words - 8 pages

CBF has hired you to help determine why they are not able to produce the 1,000 boards per day.

1. What type of process flow structure is CBF using?

The company is using a batch shop process flow structure. CBF, Inc. bases its board fabrication process on the average job size or on its typical order. This means that the company proceeds with the manufacturing process in batches so as to meet the specific requirements per order. The typical contract that the company currently gets is 60 boards per order. However, due to persisting factory defects, they manufacture a total of 75 boards per batch in order to compensate for 20% of the boards that they typically reject during the process.

2. Diagram the process in a manner similar to exhibit 6.7.

According to the book, the diagram is an operation and route sheet that specifies operations and process routing for a particular part. It conveys such information as the type of equipment, tooling and operations required to complete the particular part.

The "Setup Hr." is derived from dividing the setup (minutes per job, as illustrated in exhibit 6.9) by 60 minutes. Likewise, the hourly capacity of each operation (Rate Pc. Hr.) is solved by dividing 60 minutes by the run (minutes per part, as shown in exhibit 6.9).

3. Analyze the capacity of the process.

The first thing to consider is the process of cleaning and coating of the boards. This particular process involves the set-up of the machines, the loading of the boards, and the actual cleaning and coating of the said boards by the machines.

From the computations above, it is clearly illustrated that there is a disparity between the loading of the boards into the machines and the output of the cleaning and the coating machines. The loading rate exceeds that of the cleaning and coating capacities.

There are 5 exposure machines, with a person attending to each one's operation, loading and unloading. This exposure machine involves a set up time, as illustrated below.

Again, the capacity of the exposure machine, which is 1,138 board, exceeds its preceding process, which only churns out 900 boards per shift.

In this part of the manufacturing process, a person is in charge of loading the boards into the machine. From the previous computation (in the part of coating and cleaning), the average loading rate per day is 1,019.

It can be seen here that the developing capacity of the machine far exceeds the number of boards that are loaded into it. Again, there is disparity between the processes.

Two people are stationed at the inspection part of the process where each board is picked from the conveyor as it comes from the developer. Moreover, the inspection machine optically checks the boards.

The inspection can go through 120 boards per hour. However, this is the part in the process where rejects are picked out. Historically, 15% of those that go through inspection do not pass. This means that out of the 120 boards that...

Find Another Essay On Circuit Board Fabricators Case

Branch Line coupler with wireless Transceivers

1577 words - 7 pages result in graphs or as selected path. After the simulation we can see the 3d dimensional picture of that circuit. Because of this, the circuit can be made on Printed Circuit Board (PCB).If it is done the circuit will be ready to use. Branch line coupler : A Branch Line Coupler (Quadrature 90° Hybrid) is a four-port network device with a 90° phase difference between two coupled ports. The device can be used for a single antenna Transmitter

Failure Prediction Algorithms Essay

1236 words - 5 pages . This case can track a failure milliseconds after it occurs, the researchers strongly hypothesized that improved algorithms could began to predict failures in a proactive manner opposed to reactive. Both of these cases prove that there have been successful cases of prognostics in large-scale systems; it is just a matter of time before the technology is embedded into the core components (circuit cards) of systems. Time-to-Market Concerns There

The State Judicial Selection Process of Florida and New Jersey

1770 words - 8 pages . Circuit courts have slightly more jurisdiction than county courts; processing civil cases exceeding fifteen thousand dollars, felonies, probate, cases involving mental health, juvenile delinquency, family law such as divorce, juvenile custody, and injunctions; just to name a few. The circuit courts will also hear appeals from the county court level. “The District court of appeals hears any case that is not directly appealed to the Supreme Court

Implementing Prognostics Within the Telecommunications Industry

1267 words - 5 pages diagnostics. The intended audience is automobile designers and test engineers that are looking to improve fault detection within systems. Nadeau-Dostie, B. (2000). Design for at-speed test, diagnosis and measurement. Retrieved from http://site.ebrary.com/lib/ncent/Doc?id=10052637&ppg=25 The author presented a case that promotes the use of design for test practices which been used for decades to assist in the testability of microchips, circuit

Elk Grove Unified School District versus Newdow

2130 words - 9 pages Establishment Clause and the Free Exercise Clause. In its ruling, the Supreme Court overturned the ruling by the U.S. Ninth Circuit Court of Appeals by arguing that Newdow did not have the standing to file a lawsuit since he did not have enough custody over his daughter. As a result, the Court failed to determine the constitutionality of the practice based on Newdow’s claims. The case attracted huge public interest and was also controversial

Mobile Phone Firmware Flashing for Nokia

9287 words - 37 pages mobile phone FBUS Transmit (TX) while the RA3 for FBUS Receive (RX). Bi Directional Bus (MBUS) used the RA2.On the other hand, Port B B[0..7] has been assigned to be connected to the parallel port of the computer to send the flash file to the microcontroller. In this case the parallel port signal pin were fully utilize such as the Data, Acknowledge, Select and Busy signal.Figure 3.3: Microcontroller based Circuit3.3.3 Printed Circuit Board (PCB

Wygant v. Jackson Board of Education

2280 words - 9 pages Introduction: The case of Wygant v. Jackson Board of Education, 476 U.S. 267 (1986), is a case about whether race should be a factor in determining who should be let go in the event of a layoff. This case came together because the Jackson Board of Education agreed to add a clause that would protect minority employees in the event of a layoff to the Collective Bargaining Agreement. The question before the court is does this violate the Equal

The Functions and Structure of the Legendary Telegraph

2364 words - 10 pages screwed on the top of the wooden board, I then proceeded to attach the insulated wire to form a series of circuits. The first piece of the metal cut was bent into a clicker like shape as it was the key that would send messages to the sounder by closing the open circuit. Then wire was the attached from the back of the key to the two remaining 4 in pieces of metal that acted as the power source (to one end of the power source, not both pieces of

Senion Project for Producing Electronics Part

1857 words - 7 pages power supply. The power supply could have a ground port, as well as a fuse. The function generator could also have higher bandwidth and frequency. In addition the Motorola board could be left out, and instead have programmable memory. Hardware Schematics: Inside the Wall Wart (Power Supply) Power Supply Schematic Example of dual power supply with voltage output of +15V to +30V Example of circuit with two power supplies up to 15V each

Tyler Pet Food

4038 words - 16 pages brand with Show Circuit that is for show dogs. Degree of brand recognition: Brand Preference: In the case, it does not provide too much information that Show Circuit is which one but I think it is brand preference because it was know for too many consumers used it for years. It still has another brand that is competing with Tyler Pet food. Product line strategy: I believe Tyler Pet Food has a good branding but does not have good attribution

Reverse Discrimination

4021 words - 16 pages of a validated affirmative action plan. Without these key components, an affirmative action plan can be ruled in violation of the Equal Protection Clause (as has been demonstrated by this case and many others, especially in police and fire positions) and ultimately unconstitutional, which opens all employers (public especially) to a wide array of lawsuits. In Dallas, TX, the fifth circuit struck down the city's affirmative action plan for the fire

Similar Essays

Circuit Board Fabricators Case Study

1114 words - 4 pages This case study is about Circuit Board Fabricators, Inc. which manufactures circuit boards for several companies like Apple Computer and Hewlett-Packard to name a few. Circuit Board Fabricators, Inc. plant was designed to produce 1000 boards per day but they cannot meet such production levels as their process engineer insists. On a good day, Circuit Board Fabricators, Inc. is able to produce around 700 boards. One will analyze and see how

Circuit Board Fabricators, Inc. Case Analysis Week 3

1180 words - 5 pages Case Summary Circuit Board Fabricators, Inc. is a small manufacturer of circuit boards located in California. (Chase, Jacobs, and Aquilano, 2004) Large computer companies such as Apple and Hewlett-Packard hire Circuit Board Fabricators to "make boards for prototypes of new products." (Chase, et al., 2004) The case study suggests that Circuit Board Fabricators has a good business plan established within the organization. CBF has implemented

Circuit Term Paper

2079 words - 9 pages point B. The information is transmitted from one circuit to another by using electronic currents. However, the logic sequences that have been incorporated into the electrical circuit is what distinguishes digital electronics from the electronic devices from the past. Binary logic, also known as Boolean theory, implements a base two-value logic system of “true” and “false” to transport information through electric signals. The electronic gate

A School Board's Control Over Teacher's Book Selections

1073 words - 4 pages wanted “decency and excellence” in the classroom. With this, the school board unanimously voted to terminate Evans-Marshall’s contract. Evans-Marshall filed against the school board saying that they interfered with her First Amendment rights (Lampe, 2010: Pg.1). In this case, the Sixth Circuit court of Ohio sided with the school board of Tipp City Exempted Village School District. This decision was made because the court determined that
Afstand: dichtstbijzijnde eerst | Dragon Ball Super | Just Charlie