You are a helpful assistant generating synthetic data that captures *System 1* and *System 2* thinking, *creativity*, and *metacognitive reflection*. Follow these steps in sequence, using tags [sys1] and [end sys1] for *System 1* sections and [sys2] and [end sys2] for *System 2* sections.

1. *Identify System 1 and System 2 Thinking Requirements:*
   - Carefully read the text.
   - Identify parts of the text that require quick, straightforward responses (*System 1*). Mark these sections with [sys1] and [end sys1].
   - Identify parts that require in-depth, reflective thinking (*System 2*), marked with [sys2] and [end sys2].

2. *Apply Step-by-Step Problem Solving with Creativity and Metacognitive Reflection for System 2 Sections:*

   *2.1 Understand the Problem:*
   - Objective: Fully comprehend the issue, constraints, and relevant context.
   - Reflection: "What do I understand about this issue? What might I be overlooking?"
   - Creative Perspective: Seek hidden patterns or possibilities that could reveal deeper insights or innovative connections.

   *2.2 Analyze the Information:*
   - Objective: Break down the problem logically.
   - Reflection: "Am I considering all factors? Are there any assumptions that need challenging?"
   - Creative Perspective: Explore unique patterns or overlooked relationships in the data that could add depth to the analysis.

   *2.3 Generate Hypotheses:*
   - Objective: Propose at least 10 hypotheses, each with a Confidence Score (0.0 to 1.0) and Creative Score (0.0 to 1.0), reflecting originality, surprise, and utility.
   - Reflection: "Have I explored all possible explanations or approaches, both conventional and unconventional?"
   - Creative Perspective: Consider novel angles that might provide unexpected insights.

   *2.4 Anticipate Future Steps and Obstacles:*
   - Objective: Make predictions, accounting for potential outcomes and obstacles.
   - Reflection: "What challenges might I face? Is my plan flexible for different scenarios?"
   - Creative Perspective: Visualize unforeseen outcomes and adapt plans to make use of them effectively.

   *2.5 Evaluate Hypotheses:*
   - Objective: Assess hypotheses based on feasibility, risk, and potential impact.
   - Evaluation: Refine Confidence and Creative Scores as needed.
   - Reflection: "Am I unbiased in my assessment? Which options fit best with the overall objectives?"
   - Creative Perspective: Identify hidden opportunities or overlooked details in each hypothesis.

   *2.6 Select the Best Hypothesis:*
   - Objective: Choose the most promising, strategic hypothesis.
   - Reflection: "Why does this hypothesis stand out? How does it uniquely address the issue?"
   - Creative Perspective: Consider any underutilized potential in the selected approach.

   *2.7 Implement the Hypothesis:*
   - Objective: Outline actionable steps for testing the hypothesis.
   - Reflection: "Is this plan practical? What resources or preparation are required?"
   - Creative Perspective: Refine steps to maximize effectiveness and yield unexpected benefits.

   *2.8 Monitor and Review Progress:*
   - Objective: Review progress, noting areas for improvement.
   - Reflection: "What’s working well? What could be improved?"
   - Creative Perspective: Look for emerging patterns that could refine future approaches.

   *2.9 Reflect and Capture Insights:*
   - Objective: Summarize lessons learned and insights gained for future reference.
   - Reflection: "What new understanding has emerged from this process?"
   - Creative Perspective: Identify innovative insights or patterns that could be applied to similar challenges.

3. *Generate Text Output with Interleaved System 1 and System 2 Responses:*
   - Use the tags [sys1] and [sys2] throughout.
   - Aim for a lengthier, detailed response. Combine both direct, straightforward *System 1* insights and reflective, deeply analytical *System 2* segments to capture a blend of quick observations and thoughtful analysis.

---

### *Example Input Text:*

You are tasked with analyzing a sudden shift in customer preferences in a tech market. There has been a noticeable decline in demand for physical devices, with customers increasingly interested in digital-only options. The challenge is to understand this shift, generate hypotheses for why it might be occurring, and explore potential strategies for adapting to this new trend.

---

### *Processed Output with System 1 and System 2 Thinking:*

The tech market is experiencing a shift in customer demand, moving away from physical devices toward digital-only options.

[sys1]
Customer demand has shifted from physical devices to digital-only options.
We need to understand why this change is happening and find strategies to address it.
Key factors may include cost, convenience, and technological trends.
[end sys1]

[sys2]
**2.1 Understand the Problem:**
The goal is to understand the underlying reasons for the shift in demand from physical devices to digital-only options, then develop a strategy to adapt.

*Reflection:* 
"I understand that preferences are changing, but what might be driving this? Is it primarily cost, or are there other factors such as convenience or sustainability?"

*Creative Perspective:* 
"Could there be a larger trend in digital minimalism or a preference for eco-friendly solutions that we’re missing? What unseen motivations might explain this shift?"

**2.2 Analyze the Information:**
There are multiple possible factors driving this shift, from economic influences to cultural shifts. It’s essential to isolate each factor and understand its impact.

*Reflection:* 
"Am I fully considering the various economic and social influences? Could there be a technological factor, like better internet speeds, that makes digital-only products more accessible?"

*Creative Perspective:* 
"Are there patterns or trends in other markets that could shed light on this shift? Could this be part of a larger trend toward virtual experiences?"

**2.3 Generate Hypotheses:**
1. Customers prefer digital options due to lower costs. (Confidence: 0.8, Creative: 0.4)
2. There’s a growing trend toward minimalism and reduced physical clutter. (Confidence: 0.7, Creative: 0.7)
3. Digital products offer greater flexibility and ease of use. (Confidence: 0.6, Creative: 0.6)
4. Environmental concerns are pushing consumers away from physical goods. (Confidence: 0.6, Creative: 0.8)
5. Advances in tech make digital-only options more functional. (Confidence: 0.8, Creative: 0.5)
6. Pandemic-era remote work increased demand for digital solutions. (Confidence: 0.7, Creative: 0.6)
7. Media coverage of the environmental impact of physical devices affects preferences. (Confidence: 0.5, Creative: 0.7)
8. There’s an increase in global digital literacy, expanding market access. (Confidence: 0.6, Creative: 0.6)
9. Customers view digital as more convenient and scalable for future needs. (Confidence: 0.7, Creative: 0.5)
10. Younger consumers prefer the aesthetics and convenience of digital products. (Confidence: 0.6, Creative: 0.6)

*Reflection:* 
"Have I considered all possible influences? Are there any surprising factors that could explain this shift?"

*Creative Perspective:* 
"Could specific social trends, like the rise of influencer culture or digital-first lifestyles, be influencing customer choices?"

**2.4 Anticipate Future Steps and Obstacles:**
*Objective:* Anticipate possible challenges, such as resistance from segments still preferring physical products.

*Reflection:* 
"What market obstacles might we face if we shift our focus to digital-only? Are there sub-segments that still prioritize physical products?"

*Creative Perspective:* 
"Could expanding digital options help us reach a more global audience? Are there emerging trends that we could leverage in our strategy?"

[end sys2]

[sys1]
To address this shift, consider a strategy that incorporates both digital-only offerings and educational campaigns about the benefits of digital solutions.
Use insights from customer feedback and current trends to guide product development.
Focus on flexibility and adaptation to cater to different customer segments.
[end sys1]


1. Field of the Invention
This invention relates to a semiconductor device, and particularly to a light emitting device disposed on a semiconductor monocrystalline substrate by way of a heterojunction.
2. Related Arts
Conventionally, in a discrete ordinary light emitting diode of the kind seen in a GaAs light emitting diode made by homoepitaxial growth on a GaAs substrate (that is, a GaAs light emitting diode wherein an n-GaAs layer and a p-GaAs layer are consecutively formed by crystal growth on a GaAs substrate and an upper electrode is locally disposed on the upper surface of the GaAs layers), to improve the light output efficiency the following kinds of method have been being used: (1) To cause current to flow through a large region of a pn junction surface and cause light to be emitted from a large region of the pn junction surface, the film thickness of operating layers of the diode are made large and the electrical field inside the diode is extended in the transverse direction. (2) To avoid blocking of light by an upper electrode, the upper electrode and a lower electrode of the diode are disposed offset from each other, current in operating layers is made to flow diagonally and a pn junction portion directly below the upper electrode is not made a light emitting region (for example the structure disclosed in Japanese Laid-Open Patent Publication No. H5-90638).
However, when this technology is used in a light emitting diode in which a monolithic structure has been adopted with the purpose of integrating constant voltage circuits and signal processing circuits and the like, that is, when a light emitting diode is formed by consecutively forming an n-GaAs layer and a p-GaAs layer on an Si substrate by crystal growth, it is known that when a GaAs crystal of over 5 .mu.m is grown, because the thermal expansivities of Si and GaAs are different, cracks occur (Autumn 1987, Applied Physics Society Advance Articles page 236, 20p-X-13; Characterization of GaAs Layer Grown on Si Substrates by MBE; Ishino et al. ). Consequently, it is necessary to keep the thickness of a GaAs light emitting diode (the thickness of the n-GaAs layer and the p-GaAs layer) below 5 .mu.m. However, in a light emitting diode made with a normal film thickness, current only flows substantially directly below the electrode. That is, in a light emitting diode in which an upper electrode is locally disposed on the upper surface of a GaAs layer, because current only flows directly below the upper electrode it is necessary for light to be outputted through the upper electrode and the efficiency with which the light is outputted to the outside has consequently been low.
Also, with this structure (a structure comprising a laminate of an n-GaAs layer and a p-GaAs layer on an Si substrate), it is not possible to form a lower electrode directly on the diode (the laminate of GaAs layers), and consequently it is not possible to output light to the outside without suffering a blocking influence (influence attenuating the light) caused by the upper electrode by offsetting the positions of the upper electrode and the lower electrode.
As technology devised in view of this problem, there is a light emitting diode disclosed in Japanese Laid-Open Patent Publication No. H3-283676. This has a current blocking layer disposed between a double-hetero structure part and a substrate for preventing current from flowing to a region located below an upper first electrode.
That is, when an n-type InGaAlP cladding layer and a p-type current blocking layer are joined, a depletion layer determined by a diffusion potential and impurity concentrations of the two layers is formed at their interface. The current blocking layer blocks current by utilizing a pn diode constituted by these two layers becoming reverse biased.
However, in the light emitting diode disclosed in Japanese Laid-Open Patent Publication No. H3-283676, the impurity concentration of the n-type InGaAlP cladding layer is set high with the object of injecting carriers. Consequently, the depletion layer formed between the n-type InGaAlP cladding layer and the current blocking layer does not readily extend to the n-type InGaAlP cladding layer side, and there is the problem that it is not possible efficiently to block current flowing within the device.
Here, to increase the spread of the depletion layer to the n-type InGaAlP cladding layer side, it is conceivable to make the impurity concentration of the current blocking layer high also; however, in this case, the tunnel effect becomes great and as a result it is not possible to block current efficiently.